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Switched GPUs and now system memory dropped?!? huh?

I had been using a 660ti and noticed my system memory getting up to and holding around 7.1GB of 8 when playing BF4. Then I bought a new 280x and noticed that my Max memory never breaks 6.4GB. Am I missing something? Now it is around 6.1GB max and it used to be around 7.1GB. Why the sudden drop?
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  1. I would not worry.
    Windows manages system ram, keeping the most used code in ram, available for instant reuse.
    Your ram statistics reflect that, but says nothing about how much is really needed.

    How are you measuring MAX memory?
  2. geofelt said:
    I would not worry.
    Windows manages system ram, keeping the most used code in ram, available for instant reuse.
    Your ram statistics reflect that, but says nothing about how much is really needed.

    How are you measuring MAX memory?


    Using Open Hardware Monitor. It's been very reliable.
    I'm not so much worried as perplexed.
  3. I should have asked what does MAX memory measure, and what does it mean.

    I might be perplexed too.

    Your GTX660t1 probably had 2gb of vram, the 280X 3gb.
    With less vram, more system ram might have been needed to support the graphics card.
  4. When I said Max memory usage it was referring to the maximum value of Used Memory according to OpenHardwareMonitor.
  5. With three GB of VDRAM in the 280X vs 2 in the 660TI data transfer is smoother
  6. Best answer
    No game, by itself will use more than 2-3gb of ram.
    With 8gb, windows is keeping more of the extra in ram on speculation that it might be reused.
    The max used has no impact on performance.
    It is just a measure of how high the line got before windows cleared out some ram space in case it might be needed.
    If your demand page faults increase, that is a performance problem.
    IN task manager/resource manager monitor Hard page faults per second. It should be near zero if you have sufficient ram.
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