It will help a little bit in games that use physx but other than that you really dont need it w/ those 2 cards. It just makes your setup look more awesome
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third card for physx
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Originally Posted by d0gZpAw While the GTX260 has many idle cores during Vantage PPU benchmark, it definately outshines the 8600GT, but since you have an SLi setup, you can utilize your 260's to full benefit without having to load them up with PhysX processing if you offload that to the 8600GT.. this might not add up to as many additional particles as the 260's are capable of rendering, but you will definately see a lot of PhysX going on, and this will not impact your framerate as much as running PhysX on your primary card while you are gaming. I have a friend with 8800Ultra 3xSLI, and since he had a spare slot, he shoved in an 8600GT and was very happy with the results.. granted Vantage would score higher using 8800Ultra for PhysX, but during games where there weren't as many idle parts of the core, the 8600GT really helped out. |
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good input, lol
so, so what exactly was the improvement for your friend? the physx quality along with a few fps?
Originally Posted by kaivorth
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so, so what exactly was the improvement for your friend? the physx quality along with a few fps?
hoth, if you want to test it out I can send you my spare 8600GTS so you can give it a spin. I have a lifetime warranty on it from eVGA, so I'm not worried about you breaking it
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. PM me if you want to test it.
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Basically, when you enable PhysX on a single GPU or SLi setup, a portion of the core is utilized to process PhysX (where applicable). This results in reduced framerates compared to having PhysX disabled, as there is more on screen to render, and your GPU is doing two jobs at once, calculating physics and rendering a scene.
When offloading PhysX to an un-utilized core (ie, one that isn't doing the rendering), your primary/sli cores are freed up to process that scene with the physics calculations already performed. This can negate the impact of enabling PhysX, somewhat significantly in some cases (such as lower end single GPU or SLI setups).
So basically you get very similar final frame quality, but with slightly increased FPS. The easiest way to see the difference is to just try it out and pay attention to your framerates.
Originally Posted by hoth17 good input, lol so, so what exactly was the improvement for your friend? the physx quality along with a few fps? |
When offloading PhysX to an un-utilized core (ie, one that isn't doing the rendering), your primary/sli cores are freed up to process that scene with the physics calculations already performed. This can negate the impact of enabling PhysX, somewhat significantly in some cases (such as lower end single GPU or SLI setups).
So basically you get very similar final frame quality, but with slightly increased FPS. The easiest way to see the difference is to just try it out and pay attention to your framerates.
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Sounds great. I'd love to see the results. It should also clear up any speculation once people have some statistics to poor over.
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Originally Posted by hoth17 How about I run benchmarks as well as in game tests on a single 260 c216, 260 with 8600gts physx, sli 260, and sli 260 with 8600gts physx. I will post what i find here in case it can help someone out. |
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Yeah I never tested it in games because I haven't had time with school. So I will send mine to hoth if he wants to do some testing.
Originally Posted by d0gZpAw Sounds great. I'd love to see the results. It should also clear up any speculation once people have some statistics to poor over.
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