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GTX 660 didn't benchmark as PhysX?

post #1 of 7
Thread Starter 
We ran the 3D-Mark Fire Strike benchmark, with my 770 as the graphics card and the 660 as the physX card. When it finally got to the physX benchmark, where the little alien things have all their little tentacles dangling, there was no change in the framerate. We ran the benchmark with and without the 660, and it was properly setup to be the physX card when we ran it. So what gives? Why didn't this show an increase in framerate during that particular portion of the benchmark? Shouldn't there have been at least some increase? It was 28fps both times.
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post #2 of 7
The physics test on firestrike isn't physX. its a physics test based on your cpu. PhysX is for a few select games that have that capability like borderlands 2 and a few select other games.
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Small wonder.
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post #3 of 7
Thread Starter 
At this point in time, does it look like many more devs will be making use of PhysX? Or will it continue to be about the same? What's the prognosis?
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post #4 of 7
Witcher 3 has PhysX, but in general most games do not have PhysX and I don't see that changing.
Not the definitive list...
http://www.geforce.com/games-applications/technology/physx?title=&sort_bef_combine=%20&sort_order=&sort_by=
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post #5 of 7
Thread Starter 
Are there any benchmarks that will test physX? And how much card do you actually need? Say a 650 or a 660? To run physX properly on another card.
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post #6 of 7
Fluidmark tests PhysX

http://www.ozone3d.net/benchmarks/physx-fluidmark/

How much card to you need? There is always a ton of discussion about that. Your 660 would be a great PhysX card for your 770
One thing is certain, even though PhysX is a small load compared to the rest, the gpu can't be so old that it is just too slow and drags everything down.
You can't pair a 8800/9800GT or 200 series with your 770.

My guess would be at least a 500 series card, perhaps an overclocked gtx 460, to keep up with your 770. There are others who know better than I do.
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post #7 of 7
Thread Starter 
Thank you sir. Yeah I saw a youtube vid about using an 8600 GT, and it didn't work out. But it makes you wonder. If physX is such a small load, then why couldn't a smaller card do the job? Maybe its a bigger load than people think. That would explain the 10fps gain some people see in some games with physX. Sometimes the gain is large, other times small, but of course it depends on the game. But even though it depends on the game that still points to it being capable of being quite a large load that would be nice to run on another card.
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