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Can a GPU Memory/Vram Utilize or Use the ddr3 System Ram/Memory to increase performance?

1st of all i have an old system - Fx 4100, msi 760gm-p23, 8gig ram, gtx 560 se, 600w psu and my question is that can the old gtx 560 video memory of 1gig gddr5 utilize the dd3 system ram?... playing fallout 4 Nuka world but stuttering with high settings even when the gpu is oc at max slider and max voltage. (Fraps show gpu memory usage is at 99%, cpu 75%, gpu 82% at high settings. Bottleneck maybe?
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More about gpu memory vram utilize ddr3 system ram memory increase performance
  1. No,ram cannot be interchangeably shared.It will not work.Another thing,that overclock of yours is worrying,overclocking should be at steps and hearing max voltage worries me
  2. applegwava bro thnks for the reply but the SOP is that if a game uses more than your gpu memory capacity , it will look for the system ram for backup , and that's what fraps is reporting to me, becoz my ram usage spiked up by 1 gig when in high settings..........about my overclock settings i think i just got lucky draw? silicon jackpot? i got mine stable at max sliders for voltage and gpu core clock but only on default memory clock, if i increase memory clock it will crash
  3. Best answer
    MERGED QUESTION
    Question from OverclockDaddy : "Can a GPU Memory/Vram Utilize or Use the ddr3 System Ram/Memory to increase performance?"

    OverclockDaddy said:
    1st of all i have an old system - Fx 4100, msi 760gm-p23, 8gig ram, gtx 560 se, 600w psu and my question is that can the old gtx 560 video memory of 1gig gddr5 utilize the dd3 system ram?... playing fallout 4 Nuka world but stuttering with high settings even when the gpu is oc at max slider and max voltage. (Fraps show gpu memory usage is at 99%, cpu 75%, gpu 82% at high settings. Bottleneck maybe?


    ryguybuddy said:
    It will if it runs out of VRAM, and your FX-4100 is slightly bottlenecking it anyway.


    Anonymous said:
    Well fallout 4 uses about 1500mb of VRAM on low 1080p so yes you are definitely using all your VRAM. What you are asking is the only reason the game continues to run after you use all your VRAM. Once all your VRAM is used up your PC will start using system RAM as VRAM, however system ram is much slower than VRAM and has far more latency, so you are going to get mainly a lot of stuttering as you described, or even large frame rate dips.


    No, the only way one can allocate system ram for video is when you are using integrated graphics.

    Some games are graphics limited and some are cpu limited.

    FX processors are slow, the likely cause of your stuttering is lack of single thread processor performance.
    More cores from a FX-6 or FX8 will not do it.
    In the short run, perhaps you can overclock your FX-4100.
    If that will not do the job, consider Intel for a good mid range gamer.
    A i3-6100, a lga1151 motherboard and some DDR4 ram will be a nice boost.
    Here is what it can do:
    http://www.anandtech.com/show/10543/the-skylake-core-i3-51w-cpu-review-i3-6320-6300-6100-tested

    I am dubious about the need for Vram,
    VRAM has become a marketing issue.
    My understanding is that vram is more of a performance issue than a functional issue.
    A game needs to have most of the data in vram that it uses most of the time.
    Somewhat like real ram.
    If a game needs something not in vram, it needs to get it across the pcie boundary
    hopefully from real ram and hopefully not from a hard drive.
    It is not informative to know to what level the available vram is filled.
    Possibly much of what is there is not needed.
    What is not known is the rate of vram exchange.
    Vram is managed by the Graphics card driver, and by the game. There may be differences in effectiveness between amd and nvidia cards.
    And differences between games.
    Here is an older performance test comparing 2gb with 4gb vram.
    http://www.pugetsystems.com/labs/articles/Video-Card-Performance-2GB-vs-4GB-Memory-154/
    Spoiler... not a significant difference.
    A more current set of tests shows the same results:
    http://www.techspot.com/review/1114-vram-comparison-test/page5.html

    And... no game maker wants to limit their market by
    requiring huge amounts of vram. The vram you see will be appropriate to the particular card.
  4. don't start another thread on the same question
  5. I really don't understand that. Fallout 4 uses around 1800mb of vram depending on where I am on my system at the settings I play at, and even on low 1080p it uses more than 1gb. So what happens when fallout 4 tries to use more than 1gb of VRAM on a 1gb card? I always assumed it would use system ram.
  6. copy that boss rgd1101 :)
  7. oic, so the culprit is the slow fx 4100 and not the 1gig vram of the old gtx 560?
  8. OverclockDaddy said:
    applegwava bro thnks for the reply but the SOP is that if a game uses more than your gpu memory capacity , it will look for the system ram for backup , and that's what fraps is reporting to me, becoz my ram usage spiked up by 1 gig when in high settings..........about my overclock settings i think i just got lucky draw? silicon jackpot? i got mine stable at max sliders for voltage and gpu core clock but only on default memory clock, if i increase memory clock it will crash


    The thing is increse memory .Yes
    Increased performance? No
    Bus speed is too slow ,it will just bottleneck while meomory flushes
  9. thanks guys for the help, appreciate it!, its my cpu bottlenecking the gpu , i tried dragon age inquisition in ultra settings with max gpu overclock and the game play smoothly, problem solved , i'll just save up for a new rig. thnks again
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