FurMark vs GPU Caps - Stress Issue & Temps
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October 23, 2009, 08:50 AM
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Join Date: Aug 2007
Location: Kitchener, ON
Hmm, a few days late, but oh well.
Actually, not all 100% are equal, for CPU or GPU. Technically speaking, it's impossible to truly use 100% of either, because they have such a variety of functions they can perform. You might say that it's a little bit like trying to use 100% of Swiss Army knife - you can't open a bottle of wine while you're sawing a small branch while you clean the dirt out from under your fingernails. And even if you do try, none of those three activities will be happening at full speed.
In the case of your GPU, where you get the temperature difference is because some functions are more power intensive than others. So even if two different programs are maxing out the GPU, one of them might be maxing out the GPU's abilities in an area that's more power intensive. You can see this sort of thing with CPU's as well, where programs like Prime95, HyperPi or Linpack will all make your task manager hit 100%, but the resulting temperatures can easily vary by 10*C or more.
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