Hey guys, I'm thinking about getting a 760 (or 760Ti if one pops up in the future) with 4gb of memory, and using one of my 560Ti twin frozrII cards(currently in SLI) with 1gb of memory as PhysX.. now I'm guessing the 560Ti shouldn't cause a bottleneck issue as a PhysX processor because I've looked at the GPU usage on Afterburner while running Planetside 2 with dedicated Physx turned on, and the performance of my game goes up by 10-15 frames, while only using about 15-20% of my PhysX card's GPU. This is going on the assumption that if my system was using almost 100% of the PhysX card to do physics, then I imagine there may be bottleneck issues if paired with a higher end card to do dedicated graphics, but as it does not do this, this is what I've come up with.
That being said, my concern is the video memory - I know when running in SLI, video memory isn't additive, the system only uses as much video memory as the card with the least amount, so running two 560s with 1gb of memory each does not mean 2gb total, just 1gb. What about PhysX? Does the video memory of one card impact the other, or will I get to use all 4 gigs of memory from a 760 if used in conjunction with a 560Ti in PhysX?
That being said, my concern is the video memory - I know when running in SLI, video memory isn't additive, the system only uses as much video memory as the card with the least amount, so running two 560s with 1gb of memory each does not mean 2gb total, just 1gb. What about PhysX? Does the video memory of one card impact the other, or will I get to use all 4 gigs of memory from a 760 if used in conjunction with a 560Ti in PhysX?
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