What is 8700k stock core voltage?

When we are overclocking our CPUs we basically operate them outside the manufacturers specifications. I know what Intel's specifications are in regard to the clock speeds for the 8700k. But what would be the specification for the core voltage? I couldn't find any info on ark.intel.com.

I am just curious. Thanks.
Reply to mjbn1977
10 answers Last reply
More about 8700k stock core voltage
  1. modern CPUs don't really have a "default" vcore. Their vcore is decided by the chip itself.
    Reply to ingtar33
  2. ingtar33 said:
    modern CPUs don't really have a "default" vcore. Their vcore is decided by the chip itself.


    Ok, but is there a maximum? If I overclock to 4.8Ghz on all cores and leave Vcore to auto, it will usually put the vcore at V1.24 at full load.
    Reply to mjbn1977
  3. maximum safe? most will agree you shouldn't go past 1.40v on the core unless you have delid with liquid metal and very good cooling. your dark rock 3 isn't enough on the cooling end, and your msi carbon pro is going to run into vrm/mosfet heat issues as well.
    Reply to nikoli707
  4. +1 on @nikoli
    When we are overclocking our CPUs we basically operate them outside the manufacturers specifications
    with your opening statement i wouldve expectd you guys to know already some idea of what vcore value to put in :)
    Reply to marksavio
  5. nikoli707 said:
    maximum safe? most will agree you shouldn't go past 1.40v on the core unless you have delid with liquid metal and very good cooling. your dark rock 3 isn't enough on the cooling end, and your msi carbon pro is going to run into vrm/mosfet heat issues as well.


    1. Maximum safe was not my question. My question was with what core voltages a 8700k @stock operates in and what is considered "normal" stock. I mostly asked out of curiosity.
    2. Why wouldn't be the Dark Rock Pro 3 enough on the cooling end? with an Corsair H110i you can cool maybe ~5 degress celsius more, but than the case sounds like a boing 747 at takeoff. Maybe with custom loops you can be much cooler but I don't plan to break overclocking world records. my Dark Rock Pro 3 runs plenty cool at 4.8 GHz (will stay under 85C with prime95 running with AVX). Yes, if I go to 5 Ghz I have to set an AVX offset (hey, but even they guys from silicon lottery do that!)
    Reply to mjbn1977
  6. mjbn1977 said:
    nikoli707 said:
    maximum safe? most will agree you shouldn't go past 1.40v on the core unless you have delid with liquid metal and very good cooling. your dark rock 3 isn't enough on the cooling end, and your msi carbon pro is going to run into vrm/mosfet heat issues as well.


    1. Maximum safe was not my question. My question was with what core voltages a 8700k @stock operates in and what is considered "normal" stock. I mostly asked out of curiosity.
    2. Why wouldn't be the Dark Rock Pro 3 enough on the cooling end? with an Corsair H110i you can cool maybe ~5 degress celsius more, but than the case sounds like a boing 747 at takeoff. Maybe with custom loops you can be much cooler but I don't plan to break overclocking world records. my Dark Rock Pro 3 runs plenty cool at 4.8 GHz (will stay under 85C with prime95 running with AVX). Yes, if I go to 5 Ghz I have to set an AVX offset (hey, but even they guys from silicon lottery do that!)




    if you are asking stock with pirme95 load you might see anywhere from 1.15v to 1.20v depending on the cpu lottery. though most are going to end up in a tight range, there are probably a few processors that can run outside that range depending on the silicon.

    otherwise its normal vcore stepping range was determined by a bunch of factors at the factory, each cpu will be different. dont interpret that as meaning if the cpu1 runs at a lower stock vcore than cpu2 then cpu1 must overclock better... there are more factors than that. generally intel saves the cpus that end up with the lowest vcore for laptop and xeon so they can further undervolt and underclock to get tdp/wattage down or for higher demand stability reasons.

    your dark rock 3 is an excellent air cooler, i didnt mean to say it wasn't. i was just mentioning it really isn't up to the task of going over the max safe vcore. since you posted in the overclocking sub and i wasn't exactly sure what you were asking put "maximum safe" with a question mark. and 4.8ghz is plenty of cpu horsepower... 5.0ghz will really only get you about 4% more performance which is pretty much negligible in most tasks, especially gaming. though you can likely tinker a little bit with llc and avx offset and get a little higher while either maintaining the same temps or possibly a tiny bit lower, but it will take some time and overclocking patience.
    Reply to nikoli707
  7. nikoli707 said:
    mjbn1977 said:
    nikoli707 said:
    maximum safe? most will agree you shouldn't go past 1.40v on the core unless you have delid with liquid metal and very good cooling. your dark rock 3 isn't enough on the cooling end, and your msi carbon pro is going to run into vrm/mosfet heat issues as well.


    1. Maximum safe was not my question. My question was with what core voltages a 8700k @stock operates in and what is considered "normal" stock. I mostly asked out of curiosity.
    2. Why wouldn't be the Dark Rock Pro 3 enough on the cooling end? with an Corsair H110i you can cool maybe ~5 degress celsius more, but than the case sounds like a boing 747 at takeoff. Maybe with custom loops you can be much cooler but I don't plan to break overclocking world records. my Dark Rock Pro 3 runs plenty cool at 4.8 GHz (will stay under 85C with prime95 running with AVX). Yes, if I go to 5 Ghz I have to set an AVX offset (hey, but even they guys from silicon lottery do that!)




    if you are asking stock with pirme95 load you might see anywhere from 1.15v to 1.20v depending on the cpu lottery. though most are going to end up in a tight range, there are probably a few processors that can run outside that range depending on the silicon.

    otherwise its normal vcore stepping range was determined by a bunch of factors at the factory, each cpu will be different. dont interpret that as meaning if the cpu1 runs at a lower stock vcore than cpu2 then cpu1 must overclock better... there are more factors than that. generally intel saves the cpus that end up with the lowest vcore for laptop and xeon so they can further undervolt and underclock to get tdp/wattage down or for higher demand stability reasons.

    your dark rock 3 is an excellent air cooler, i didnt mean to say it wasn't. i was just mentioning it really isn't up to the task of going over the max safe vcore. since you posted in the overclocking sub and i wasn't exactly sure what you were asking put "maximum safe" with a question mark. and 4.8ghz is plenty of cpu horsepower... 5.0ghz will really only get you about 4% more performance which is pretty much negligible in most tasks, especially gaming. though you can likely tinker a little bit with llc and avx offset and get a little higher while either maintaining the same temps or possibly a tiny bit lower, but it will take some time and overclocking patience.


    Actually, I put the CPU back on stock and ran a few benchmarks. Seems like will go up to 1.245 during most demanding situations (prime95 with AVX).

    Yeah, I will make 4.8Ghz my 24/7 overclock. I will play around a little bit with 5Ghz just for fun. 5 is just such a nice round number. But temps will be to high for a 24/7 (I did't delid, not sure if I will) so I just use it for a little bench marking and stuff.

    At 4.8Ghz @ around the 1.25 the temps seem fine. Below 85C while running prime95 with AVX (no offset).
    Reply to mjbn1977
  8. 1.25v is far into the safe zone, you have lot of voltage headroom. but like i said, a 4% performance increase to 5.0ghz in the end doesn't really make all that much of a difference.... buuut it is a very nice round number. run prime95 26.6 (non avx) and report your temps. i think you have more cooling headroom in your dark rock.
    Reply to nikoli707
  9. with prime95 26.6 the temps are absolutely fine. but as soon as I do prime95 with AVX and no offset on more than 1.3V it hits mid to high 90Cs right away (one core even hits 100C). So I usually stop it right away. When I run prime95 with AVX at 4.8Ghz on ~1.25V the temps are around 85C.
    Reply to mjbn1977
  10. i would run a higher avx offset then. what vcore and temps are you getting with non avx for your overclock?
    Reply to nikoli707
Ask a new question Answer

Read More

Overclocking Core