GTX 970 overclock results!

So on my GTX 970 I have upped the core my 120 MHZ observing a boost clock of 1479mhz. MY fans are around 50 percent at 100 percent usage and the temps are 52 degrees! I have only upped the voltage by 15 MV and the power limit to 105%. I love this card, give me your results below!
Reply to jty0yt
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More about gtx 970 overclock results
  1. Good job.
    Reply to SR-71 Blackbird
  2. What's your cards reference? Got my MSI gtx 970 to 1556MHZ +225 core +550 mem @~mid 50's c Scored 1636 in heaven 4.0 @ 65.0 fps 1080p :) lovin it. Absolutely amazing card for the price and I can't wait to sli them in the future.
    Reply to Borge80
  3. Galax EOC in sli.
    +200 core
    +450mem
    Still have room to up the voltage on the cards but top card is running a lot hotter then the bottom card (sucking all the hot air up) so I've left them as is.
    Reply to mosti
  4. How did u guys test your card stability? I got EVGA 970 SC:
    + 150 core
    + 300 mem
    Reply to LittleKat
  5. Run a benchmark like heaven 4.0 for a while.

    It will crash or you will see artifacts if the OC is too high. Once you see no artifacts I would bring core and mem down a bit to stabilize it. I see no stability difference with voltage adjustment.

    Some games are more demanding than benchmarks. I had to adjust down to +220 core +525 mem, seems to be ok now.
    Reply to Borge80
  6. Borge80 said:
    Run a benchmark like heaven 4.0 for a while.

    It will crash or you will see artifacts if the OC is too high. Once you see no artifacts I would bring core and mem down a bit to stabilize it. I see no stability difference with voltage adjustment.

    Some games are more demanding than benchmarks. I had to adjust down to +220 core +525 mem, seems to be ok now.


    What's yours + voltage?
    I'm currently running @ 1529mhz: +175 core, + 300 mem, 110% power, kboost on but not adding any extra voltage.
    Its quite hot @ 68 C under 99% load
    Reply to LittleKat
  7. How's this for a first ever GPU overclock?:



    Ran through Furmark, Heaven and Valley with seemingly no crashes or artifacts. Still downloading Crysis 3 for a real-world test.
    I neglected to save the last Heaven result, but I believe it came out as 59.8fps.

    Observed GPU boost clock was slightly higher, sitting at around 1447.
    In Furmark, through multiple runs, I've never seen it go higher than 71c. 68-69 in the others; and it's pretty darn hot in here (I've taken off all my clothes.... ahuehuehue).

    As a question though, do you think I should dial back the memory a little bit?
    I'm a little bit concerned as to how it lacks any kind of heatsink and also how it's being serviced by only one phase.


    I've got to say... this card man. It takes anything. I can't tell you how satisfying it is to hear a little 'click' about 20 seconds after finishing one of these tests as the fans turn off.
    Reply to Anonymous
  8. LittleKat said:
    Borge80 said:
    Run a benchmark like heaven 4.0 for a while.

    It will crash or you will see artifacts if the OC is too high. Once you see no artifacts I would bring core and mem down a bit to stabilize it. I see no stability difference with voltage adjustment.

    Some games are more demanding than benchmarks. I had to adjust down to +220 core +525 mem, seems to be ok now.


    What's yours + voltage?
    I'm currently running @ 1529mhz: +175 core, + 300 mem, 110% power, kboost on but not adding any extra voltage.
    Its quite hot @ 68 C under 99% load


    It's at +50mV but at full load it will run at 1250mV whether it's at +5mV or +87mV which is strange. 0mV increase will run at 1225mV which is such a small amount that it doesn't make a difference either way. Voltage increase on the MSI is iffy, but it's not really even needed. Overvoltage increases my current clock speed from 1549mhz to 1561mhz.

    Don't leave Kboost on..It just runs at stock boost speed regardless of load.
    Reply to Borge80
  9. EVGA GTX 970 SC ACX 2.0

    Right now I'm at 1512 MHz on stock voltage (+120). Temps get up to 72 C in FurMark, but my fan profile is set to max out at 50% and it runs quiet, so I'm very comfortable with that. This thing boosted to 1392 MHz right out of the box, which is just bananas. I haven't bothered OC'ing the memory yet.

    I read a lot of negative feedback on various forums about how awful the EVGA versions are, but I'm experiencing zero coil whine, and as long as you keep a conservative fan profile, it's crazy quiet. And you can overclock the nuts off it.

    FWIW, I ran Heaven 4.0 and scored a 1977 (78.5 FPS) using the default "Extreme" 1600 x 900 setting (not 1920 x 1080; I like to OC using a window and burn-in at 1080).
    Reply to Scott Moondragon
  10. Found something that's pretty strange. My last clock MSI 970 clock @ 1556MHZ (+225 core, +550mem, 1225mv) was crashing some games so I took it back into heaven and found a few artifacts I didn't find last time, due to the core.

    Now I reduced the core clock to +215, but raised the memory to +600 and increased the voltage to the hardware lock of 1250mV (I just did +87mV) which gave me an actual clock of 1556 MHZ again, and 1543MHZ without voltage and resulted in no artifacts, and appears stable so far in games. I even benchmarked heaven 4.0 and stressed Alien Isolation, Watch dogs, and the internet at the same time and it didn't crash or produce artifacts.

    So I compensated the performance loss from the core by upping the mem to its absolute performance max (650 is unstable), but increased the voltage to gain the highest clock possible which ended up being the SAME freq clock speed as the previous unstable clock with different settings...wtf? It looks like increasing the voltage is actually useful and does increase performance past the max stable core clock.

    Final max stable clock: Will be testing this for a bit and will update.
    1556MHZ @ 51-54C full load
    +110% Power target
    +215 core - maxed out before artifacts start occuring
    +600mem - will be using this for a while unless unstable
    +87mV - results in slight clock increase so will leave this on
    104-106% - TDP highest I've seen so far on my card.


    I hear the msi 970's crappy 110% power limit prevents this card from reaching clocks of 1.6GHZ, sourced here http://www.hardocp.com/article/2014/09/29/msi_geforce_gtx_970_gaming_4g_video_card_review/8.

    1540-1545 seems like the max stable clock I've seen so far, although I think I might've just won the gold cup. I'm curious to know if anyone has higher clocks on the MSI version.

    I will also add that my card msi gaming 970 came with a clock of 1328mhz, and not 1366.
    Reply to Borge80
  11. edit: delete this post plz admin.
    Reply to Jonathan Cave
  12. I'm a little disappointed with my ACX2.0 SC. It only does +100mhz (1,417) stable on the core and anything above that produces artifacts and crashes. It did seem like I was able to run +125mhz on Heaven with a score of 1589 but that same config was crashing with Furmark. I can max out my memory at 600mhz and using that doesn't seem to affect my ability to overclock the core.

    Still, the 970 is a beast of a card at stock and and since I can get "FTW" performance from my "SC" card, I'll take the $30 I saved as a victory.
    Reply to Ellis_D
  13. Funny you should say that, i can only get my 970 to 1418 boost and 1843mhz memory - however im running SLI which is a bit more temperamental.
    Reply to Jonathan Cave
  14. Contrary to my previous post in this thread a while ago, I also ran into some issues with clock speeds over around 1430MHz (Boost). I thought it was stable at the time due to it passing all of the heavy benches with ease, even a campaign run of Crysis 3, guess things change.

    I've dropped things down to a more modest 1200 non-boost (Results in about 1340 boost) on the core and 7400MHz effective on the memory now that they're in SLI.

    I guess we're all in the same boat.
    Not that it's a bad boat to be in.
    Reply to Anonymous
  15. Ellis_D said:
    I'm a little disappointed with my ACX2.0 SC. It only does +100mhz (1,417) stable on the core and anything above that produces artifacts and crashes. It did seem like I was able to run +125mhz on Heaven with a score of 1589 but that same config was crashing with Furmark. I can max out my memory at 600mhz and using that doesn't seem to affect my ability to overclock the core.

    Still, the 970 is a beast of a card at stock and and since I can get "FTW" performance from my "SC" card, I'll take the $30 I saved as a victory.


    You should test memory at +500 and +600 if there's not much of a difference I would keep it at +500. I had it on +600 for a while too but I realized I was getting like 1-2 fps more but it was literally right below artifacts.
    Reply to Borge80
  16. I ended up bringing core down to +200 from +225 and memory is staying at +500. Running well at 1541MHZ single and 1541mhz sli so far.
    Reply to Borge80
  17. Borge80 said:
    Ellis_D said:
    I'm a little disappointed with my ACX2.0 SC. It only does +100mhz (1,417) stable on the core and anything above that produces artifacts and crashes. It did seem like I was able to run +125mhz on Heaven with a score of 1589 but that same config was crashing with Furmark. I can max out my memory at 600mhz and using that doesn't seem to affect my ability to overclock the core.

    Still, the 970 is a beast of a card at stock and and since I can get "FTW" performance from my "SC" card, I'll take the $30 I saved as a victory.


    You should test memory at +500 and +600 if there's not much of a difference I would keep it at +500. I had it on +600 for a while too but I realized I was getting like 1-2 fps more but it was literally right below artifacts.


    I've only tested the memory at +600 vs Stock settings and got a 5% performance increase in Heaven Benchmark and for reference, +125 core and +600 memory got me a 12% increase over stock settings. All in all, I'm not planning on running an overclock 24/7 and mostly just wanted to push my card to its limit.
    Reply to Ellis_D
  18. Borge80 said:
    What's your cards reference? Got my MSI gtx 970 to 1556MHZ +225 core +550 mem @~mid 50's c Scored 1636 in heaven 4.0 @ 65.0 fps 1080p :) lovin it. Absolutely amazing card for the price and I can't wait to sli them in the future.




    BRUH? I have the EVGA GTX 970 which was stocked @ 1379mhz (scored 1656 with that), I upped it by +71 to 1450mhz and I scored 1710 in heaven 4.0 @ 67.9 fps 1080p?
    Either my card is awesome or your's is shit;p or both! did you test with everything maxed fullscreen and 8x AA or 4x? I ran at 4x as recommended.

    BTW: haven't even touched the mem or voltage
    Reply to Niccko
  19. Niccko said:


    BRUH? I have the EVGA GTX 970 which was stocked @ 1379mhz (scored 1656 with that), I upped it by +71 to 1450mhz and I scored 1710 in heaven 4.0 @ 67.9 fps 1080p?
    Either my card is awesome or your's is shit;p or both! did you test with everything maxed fullscreen and 8x AA or 4x? I ran at 4x as recommended.

    BTW: haven't even touched the mem or voltage

    He clearly ran with 8xAA and his score of 1636 is pretty good and right where it should be.
    Reply to Ellis_D
  20. Ellis_D said:
    Niccko said:


    BRUH? I have the EVGA GTX 970 which was stocked @ 1379mhz (scored 1656 with that), I upped it by +71 to 1450mhz and I scored 1710 in heaven 4.0 @ 67.9 fps 1080p?
    Either my card is awesome or your's is shit;p or both! did you test with everything maxed fullscreen and 8x AA or 4x? I ran at 4x as recommended.

    BTW: haven't even touched the mem or voltage

    He clearly ran with 8xAA and his score of 1636 is pretty good and right where it should be.


    Yes lol ultra, extreme, and 8xAA 1080p. Test again :p

    @Ellis_D: You could probably get a higher OC with +500 mem and higher core.
    Reply to Borge80
  21. Borge80 said:

    Yes lol ultra, extreme, and 8xAA 1080p. Test again :p

    @Ellis_D: You could probably get a higher OC with +500 mem and higher core.


    I wish I could. I can't even do a better core OC with memory at stock. My card's a pretty poor overclocker.
    Reply to Ellis_D
  22. Ellis_D said:
    Borge80 said:

    Yes lol ultra, extreme, and 8xAA 1080p. Test again :p

    @Ellis_D: You could probably get a higher OC with +500 mem and higher core.


    I wish I could. I can't even do a better core OC with memory at stock. My card's a pretty poor overclocker.



    What frequency is it running at?
    Reply to Borge80
  23. I've tried stock, +10, +20, and +37 (max set by bios). No dice...
    Reply to Ellis_D
  24. Thats nice man I got mine up to 1400 and 7600 at stock volts on my strix. Might keep it there so the card lasts longer.
    Reply to Fr33Th1nk3r
  25. Got my gigabyte g1 970 to 1550 mhz core + 7,36ghz mem +25mv 112% power, stable. the mem is a bit wierd on my card if i even go as far as 7,45 games will crash after about 5 mins, and i found out it would even crash on the 7,36 so i just put it back to 7.0 . what im running on my 24/7 oc is 1500 core and 7 mem, with +0mv and 100% power
    Reply to RagnarKruse
  26. 2 x Asus Strix +125mhz GPU clock and +100mhz memory.

    PC spec in sig.

    Reply to Jonathan Cave
  27. Gigabyte G1 Gaming GTX 970 Rev. 1.1
    ASIC: 58.6%

    MAX Bench stable OC: 1504/3802 +.025mv
    MAX Long Term Game STable OC: 1452/3758 stock voltage
    Zero (0) coil whine.

    I noticed with low ASIC quality on this particular sample the stock boost voltage was already high @ 1.225v core. It was not happy running at any speed with any voltage bump for more than 30-45 mins.

    Added thermal pads between backside ram and backplate. This seemed to help with stability over a 2+ hour full load stress test. SO I just went for the max I could get on stock voltage. The results are exactly where I hoped to end up. Would have liked a little more overhead, but happy with these results.

    What a beast of a card. :)
    Reply to maddogfargo
  28. RagnarKruse said:
    Got my gigabyte g1 970 to 1550 mhz core + 7,36ghz mem +25mv 112% power, stable. the mem is a bit wierd on my card if i even go as far as 7,45 games will crash after about 5 mins, and i found out it would even crash on the 7,36 so i just put it back to 7.0 . what im running on my 24/7 oc is 1500 core and 7 mem, with +0mv and 100% power



    On the Gigabyte G1 Gaming, 1/2 the ram is on the backside of the card and not touching any kind of heatsink or the backplate. I added some 3M high quality thermal pads and this seemed to help with stability. So my guess is the backside ram is getting head soaked after long term use.


    The gap is about 1.5mm, if you are considering adding pads. You will need 4 total. I would suggest maybe getting a few extra of different sizes just to be safe. Maybe 8 each of 1mm, 1.5mm and 2mm.

    *** BE CAREFUL with the thin pads on the front side *** These can be re-used but are very thin and soft.


    I cleaned and re-mounted the heatsink using Arctic Silver 5. Load temps on the core were the same as with stock TIM.

    *** BE CAREFUL to make sure the mounting studs position in the center of the holes *** If they are misaligned even a little, you will see the shoulder getting stuck and not completely tightening down. Looking between the PCB and heatrsink you should see only the straight side of the stud for the screws. If youy see any one of the 4 studs showing the L-shape of the shoulder, you are misaligned.


    For those wondering: "Dude, why did you mod a berand new GPU? Won't that void your warranty?" The mod is reversible and was done by a professional technician. So it will be fine. Besides, they don't call me 'mad' for nothing. }:)
    Reply to maddogfargo
  29. I've had my MSI GTX 970 Gaming 4 since September now and I've had plenty of time testing it and overclocking as well as flashing my own custom BIOS's. I have to say i'm very dubious about people that claim 1550mhz 8000mhz is truely stable with no voltage or TDP limit bump. I found that running benchmarks and gaming for short periods or on certain games this was achieveable by simply increasing tdp to 110% but under real stress it would always crash or throttle back the GPU.

    In the end I modified the entire voltage scale on the cards BIOS, topping out at 2.81v @ 1550mhz / 8000mhz with a TDP max limit of 300w & i have seen it actually reach 260w several times. This allows the card to run rock solid stable for hours on end in anything I've thrown at it and it never scales back the gpu clock. FC4, BF4, valley bench and heaven all run perfectly with no artifacts, hangs or crashes.

    Here are my scores to prove results:

    Reply to Andrew Waddington
  30. I've never flashed a custom bios, i think i'll have a gander at some guides. can you point me in the right direction?

    you realise the resolutions you ran were different in those pics if one is before/after o/c?
    Reply to Jonathan Cave
  31. My SLI MSI gtx 970's run heaven 4.0 fine at 1541mhz. Been gaming at that frequency too single card, no artifacts or crashes. Ran fine in watch dogs, metro last light redux, the evil within, and alien isolation so far running for hours. If I see an artifact anywhere my next drop is to 1531mhz. Memory is at +500mhz which is 8 ghz I believe? Says 4ghz on heaven, not sure why I see 8ghz and 7 stock but whatever.

    I have GPU-Z sensors and evga precision running and notice no throttling.

    Maddofargo's gigabyte being at 1450 seems a bit low. 1500mhz is a guarenteed safe stable clock with these cards so that would be my minimum overclock. I prefer to take advantage of all the power I can get out of these 970's.
    Reply to Borge80
  32. Jonathan Cave said:
    I've never flashed a custom bios, i think i'll have a gander at some guides. can you point me in the right direction?

    you realise the resolutions you ran were different in those pics if one is before/after o/c?


    They are two different benchmarks - Heaven & Valley. Unfortunately I dont have a before overclock result saved and it would mean reflashing stock bios if i was to get it which i dont want to do really. From memory though my original score (before overclock) on Heaven bench under the extreme preset (as shown on my overclocked pic) was around Score: 1,500, Ave: 60 (Min: 19, Max: cant remember) fps so it is a massive increase.

    As far as flashing custom BIOS's goes, its easy but just make sure you do a lot of reading up first. All you need is the 'Maxwell Bios Editor V1.36' and NVFLASH (latest version). You can extract your BIOS from your card using GPUZ and modify it in the maxwell bios editor, then smply flash it back onto the card using NVFLASH. There's quite a lot of info on the GTX970 thread on the overclockers forums. These helped me a lot:

    http://www.overclock.net/t/1517316/extract-and-flash-gtx-970-and-980-firmware-nolimits-and-gamestable/750
    http://cryptomining-blog.com/3757-how-to-raise-the-power-target-limit-on-geforce-gtx-970-and-gtx-980/
    Reply to Andrew Waddington
  33. Borge80 said:
    My SLI MSI gtx 970's run heaven 4.0 fine at 1541mhz. Been gaming at that frequency too single card, no artifacts or crashes. Ran fine in watch dogs, metro last light redux, the evil within, and alien isolation so far running for hours. If I see an artifact anywhere my next drop is to 1531mhz. Memory is at +500mhz which is 8 ghz I believe? Says 4ghz on heaven, not sure why I see 8ghz and 7 stock but whatever.

    I have GPU-Z sensors and evga precision running and notice no throttling.

    Maddofargo's gigabyte being at 1450 seems a bit low. 1500mhz is a guarenteed safe stable clock with these cards so that would be my minimum overclock. I prefer to take advantage of all the power I can get out of these 970's.


    Not sure if i was unlucky but even at 1450mhz gpu i started getting crashing and driver errors if i didnt manually increase the tdp limit and voltage significantly. My card kept hitting the ceiling of the TDP as well even at 110% (dont you notice this too in GPUZ?). I can't speak for others but in my case the only way i could get 1550 / 8000 stable was with 1.81v and a much higher TDP max limit. I kept increasing incrementally until it stopped crashing and even at 1.75v BF4 would crash occasionally at this overclock. All i can say is consider yourself lucky hah! :)
    Reply to Andrew Waddington
  34. Andrew Waddington said:
    Borge80 said:
    My SLI MSI gtx 970's run heaven 4.0 fine at 1541mhz. Been gaming at that frequency too single card, no artifacts or crashes. Ran fine in watch dogs, metro last light redux, the evil within, and alien isolation so far running for hours. If I see an artifact anywhere my next drop is to 1531mhz. Memory is at +500mhz which is 8 ghz I believe? Says 4ghz on heaven, not sure why I see 8ghz and 7 stock but whatever.

    I have GPU-Z sensors and evga precision running and notice no throttling.

    Maddofargo's gigabyte being at 1450 seems a bit low. 1500mhz is a guarenteed safe stable clock with these cards so that would be my minimum overclock. I prefer to take advantage of all the power I can get out of these 970's.


    Not sure if i was unlucky but even at 1450mhz gpu i started getting crashing and driver errors if i didnt manually increase the tdp limit and voltage significantly. My card kept hitting the ceiling of the TDP as well even at 110% (dont you notice this too in GPUZ?). I can't speak for others but in my case the only way i could get 1550 / 8000 stable was with 1.81v and a much higher TDP max limit. I kept increasing incrementally until it stopped crashing and even at 1.75v BF4 would crash occasionally at this overclock. All i can say is consider yourself lucky hah! :)


    My power limiter is at +110% and during bench i'm seeing like 96 watts max. In game I think my max was like 106%. My voltage is at +87 since it's locked on this card at stock 1225mv or 1250mv whether it's at +20 or +87. So I keep it running at 1250mv.

    The thing is the voltage adds to the clock speed so without voltage it's running at 1528mhz, adding voltage raises it to 1541mhz. Anything past 1546 I believe produces the smallest artifact. My max OC is sitting at +200core/+500mem/+87 voltage. I got good cards. The voltage increase gives me 1-2 fps more but it's stable so whatever :)
    Reply to Borge80
  35. 4670k @ 4.3Ghz
    2 x 970's SLI +180 core (1442mhz) and +150 memory (1824)
    120% power limit
    91 temp target
    no voltage tweaks.

    I don't know how people can get +500 memory - it seems my cards won't go any higher than +170.

    Reply to Jonathan Cave
  36. Jonathan Cave said:
    4670k @ 4.3Ghz
    2 x 970's SLI +180 core (1442mhz) and +150 memory (1824)
    120% power limit
    91 temp target
    no voltage tweaks.

    I don't know how people can get +500 memory - it seems my cards won't go any higher than +170.




    Don't know to be honest. I have the MSI versions and running fine at 4005 MHZ (+500mem) from 3505MHZ. Gives me a nice performance boost along with +200 core (1541mhz). Rivals stock 980 speed easy. Running it with a 4790k at 4.5ghz and good air flow case. What reference company is your card from? MSI and gigabyte versions are the best overclockers it's really surprising if you can't atleast get 1500mhz on the core.
    Reply to Borge80
  37. What is your ASIC quality? my 2nd Card is 56.6% however the first card is 74% - because im running in SLI this may be the reason why the memory won't o/c as high as other cards. I agree the MSI and Gigabyte cards are the best performers in overclocking terms, the gigabyte G1 is the best.
    Reply to Jonathan Cave
  38. 75.6% and 70%.I'm running in sli as well and have em both OC'd to +500.
    Reply to Borge80
  39. Gigabyte GTX 970 G1 Gaming
    1509 / 8000
    ASIC 62.5.
    This card is just a total garbage overclocker.

    Reply to Proxish
  40. Proxish said:
    Gigabyte GTX 970 G1 Gaming
    1509 / 8000
    ASIC 62.5.
    This card is just a total garbage overclocker.




    Bummer.
    Reply to Borge80
  41. Borge80 said:
    My SLI MSI gtx 970's run heaven 4.0 fine at 1541mhz. Been gaming at that frequency too single card, no artifacts or crashes. Ran fine in watch dogs, metro last light redux, the evil within, and alien isolation so far running for hours. If I see an artifact anywhere my next drop is to 1531mhz. Memory is at +500mhz which is 8 ghz I believe? Says 4ghz on heaven, not sure why I see 8ghz and 7 stock but whatever.

    I have GPU-Z sensors and evga precision running and notice no throttling.

    Maddofargo's gigabyte being at 1450 seems a bit low. 1500mhz is a guarenteed safe stable clock with these cards so that would be my minimum overclock. I prefer to take advantage of all the power I can get out of these 970's.


    It would stay bench stable at over 1500/3900, for 30-45 minutes. The limiting factor on my particular card seems to be the RAM. Half is on the backside and isn't cooled very well. It would never go to 8000, even for short runs. 7800 was the highest I could get it stable for benchmarking. 7200-7400 long term for gaming. Plus my ASIC was 58.6%, which is a bit low. This is reflected in the high stock boost voltage of 1.225v gpu core.

    I'm wondering if Gigabyte changed their binning between the 1.0 and 1.1 cards. Chances are they had to go to a higher cost VRM to fix the coil whine issue with 1.0, and this raises costs. A way to offset this is put less expensive chips on the 1.1 revision.

    I'm still very happy as 1450 is the most I would want for long term use.

    The MAIN reason I got this particular model is the cooler. I wanted the same or similar performance to my HD 7950 crossfire, but in a single card, which ran cooler and was quieter. It nails all those points, and overclocks to 1450. I can't complain.
    Reply to maddogfargo
  42. I just got my msi gtx 970 and I got it to be stable at +250 core and, +400 memory. which gave me a core clock of 1623 and a memory clock of 7800mhz. Which isn't bad consider is liquid cooled with a universal cooler. Voltage are only +30mv. I want to try to see the max I can get it to but I might wait till I get a full cover block for it.
    Reply to vietguy357
  43. vietguy357 said:
    I just got my msi gtx 970 and I got it to be stable at +250 core and, +400 memory. which gave me a core clock of 1623 and a memory clock of 7800mhz. Which isn't bad consider is liquid cooled with a universal cooler. Voltage are only +30mv. I want to try to see the max I can get it to but I might wait till I get a full cover block for it.


    I don't believe you lol liquid cooled or not. The power limit is the limiting factor. Post a screenshot of heaven 4.0 results with it at that clock and evga precision next to it. Please blow me away. Also the MSI versions voltage is a fixed value between 1225mv and 1250mv whether it's at +20mv or +75mv the result is always the same.
    Reply to Borge80
  44. Well I think I have found out why my card is bench stable at 1500 or so but not game stable. The cause is unexpected, but makes sense.


    Read all 5 pages here, paying particular attention to post #20 and also a later confirmation by another user that it works:

    https://forums.geforce.com/default/topic/784294/boost-feature-causes-gtx-970-980-instability-in-low-utilisation-situations/


    Appears the voltage changes between boost states are not so smooth and that is what causes instability in some games. This is a non-issue when benchmarking because you're always operating at max/near max voltage. But the midrange throttling may be a bit too low for overcloocked cards, especially when you factor in how leakage is engineered into overclocking enthusiast cards.

    Basically, you can use either software or a BIOS tweak to bump the minimum voltage up. This will help improve stability across the midrange loads you will sometimes see when v-sync is on for gaming.

    Since the G1 Gaming has a failsafe dual bios, I'm going to try the BIOS tweak and see if it works. I may try bumping the minimum up, or I may try editing the voltage tables to give the midrange values a small bump, maybe .0125-.025v per level. We'll see. I'll report back with my findings. :)
    Reply to maddogfargo
  45. maddogfargo said:
    Well I think I have found out why my card is bench stable at 1500 or so but not game stable. The cause is unexpected, but makes sense.


    Read all 5 pages here, paying particular attention to post #20 and also a later confirmation by another user that it works:

    https://forums.geforce.com/default/topic/784294/boost-feature-causes-gtx-970-980-instability-in-low-utilisation-situations/


    Appears the voltage changes between boost states are not so smooth and that is what causes instability in some games. This is a non-issue when benchmarking because you're always operating at max/near max voltage. But the midrange throttling may be a bit too low for overcloocked cards, especially when you factor in how leakage is engineered into overclocking enthusiast cards.

    Basically, you can use either software or a BIOS tweak to bump the minimum voltage up. This will help improve stability across the midrange loads you will sometimes see when v-sync is on for gaming.

    Since the G1 Gaming has a failsafe dual bios, I'm going to try the BIOS tweak and see if it works. I may try bumping the minimum up, or I may try editing the voltage tables to give the midrange values a small bump, maybe .0125-.025v per level. We'll see. I'll report back with my findings. :)


    That would make a lot of sense actually. Would this not be something for Nvidia to patch?
    Reply to Anonymous
  46. I got some pretty sweet results with my Gigabyte G1 970 after a day's work,
    I used a bios reflash to bump up my TDP to effective 125% and a slight bump in voltage maximum 1.275 over 1.262 stock.
    I was able to do some kombuster tests at 1601mhz core and 8400 mem so I transcribed my overclock to heaven 4.0.

    Unfortunately the high memory clock resulted in artifacting and eventual crash, I found 8090 to be the sweet spot where I finished this heaven run. The core clock might have a little headroom, but my perfcap was bouncing off of TDP limit and voltage limit the entire run anyways. Still... needs.... more... powwweerr!!



    edit: I reflashed the BIOS for 1606 core and it turns out my TDP limit was not properly raised for that previous run, for 1606/8090 I made 85.8 fps, score 2162. It was pinned to max voltage the entire time.
    Reply to DirtyHarryCNO
  47. Andrew Waddington said:
    I've had my MSI GTX 970 Gaming 4 since September now and I've had plenty of time testing it and overclocking as well as flashing my own custom BIOS's. I have to say i'm very dubious about people that claim 1550mhz 8000mhz is truely stable with no voltage or TDP limit bump. I found that running benchmarks and gaming for short periods or on certain games this was achieveable by simply increasing tdp to 110% but under real stress it would always crash or throttle back the GPU.

    In the end I modified the entire voltage scale on the cards BIOS, topping out at 2.81v @ 1550mhz / 8000mhz with a TDP max limit of 300w & i have seen it actually reach 260w several times. This allows the card to run rock solid stable for hours on end in anything I've thrown at it and it never scales back the gpu clock. FC4, BF4, valley bench and heaven all run perfectly with no artifacts, hangs or crashes.

    Here are my scores to prove results:



    lol, gotta say nice edit. almost believable XD now if only you edited the bigger score to the bottom pic with the higher avg FPS. i mean really? how does 65FPS avg score higher then 82FPS avg? XD nice try trying to troll.
    Reply to Brian Lewis
  48. Brian Lewis said:

    lol, gotta say nice edit. almost believable XD now if only you edited the bigger score to the bottom pic with the higher avg FPS. i mean really? how does 65FPS avg score higher then 82FPS avg? XD nice try trying to troll.


    At minimum, his bottom score is legitimate with his numbers and score being very close to mine. But I don't see an Extreme HD preset anywhere.

    For AAx8 1080p, Ultra and Extreme Tessellation, I get:
    Reply to DirtyHarryCNO
  49. i

    I have recently bought an MSI GTX 970 4 GB Gaming and I have started overclocking it, and I would like to hear other people'e experiences clocking this card.

    I have gotten these results in MSI Afterburner

    Clocks:

    GPU Core Clock: +200 MHz
    Memory Clock: +550 MHz

    I have not unlocked core voltage, but I use these power/temp settings:

    Power Limit: 110%
    Temp Limit: 80 C

    (Power Limit and Temp Limit are unlinked)

    If I clock either GPU or Mem further by just 50 MHz the system crashes or becomes unstable, but at these settings the system is stable.

    In MSI Kombustor benchmark I get these results:

    GPU Core Burner v2 (Furry PQTorus)
    Score [Factory]: 4936 (82 FPS)
    Score [Overclocked]: 5572 (92 FPS)

    (Factory is Core and Mem clock set to +0)

    So roughly 13% increase in this test

    GPU Memory Burner (3072 MB)
    Score [Factory]: 3061 (51 FPS)
    Score [Overclocked]: 3727 (62 FPS)

    So almost 22% increase in this test.

    3DMark - Firestrike
    [Factory] Score: 9415
    [Overclocked]: Score: 10404

    11% increase

    I would like to hear from other people with this same card. It does not have to be an MSI card, just a GTX 970, though I have read that the MSI card is the most willing to be overclocked, perhaps due to a more effective cooling system?

    Stupid question: The reason why MSI Afterburner shows Memory Clock to be half of what it is in other Tweaking apps in this post is because it shows the clock rate of the memory bus with the 2x multiplier of a DDR bus (Dounbe Data Rate)?

    I cannot get Core Clock above +200 MHz, even at +210 MHz the drivers crashes as soon as GPU Usage reaches 100%, but at +200 MHz the system is very stable.

    What benefit is there to gain from unlocking core voltage? And do the two power connectors on the card need to be feed from separate cords, each connected directly to the PSU? When I first installed the card I could not find two separate power cords so I connected both power inlets to the same cord and yet the card ran flawlessly. I have found the other cord, so now the card IS connected with separate cords. Does this have any influence on performance and/or overclocking potential? (Corsair 750w PSU)
    Reply to Phazer1980
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