advance phyx 5960x

[hunkeelin]

Hi all, I was benchmarking my system and let my cpu handle advance phyx in metro series and batman series. By doing that I got a huge fps boost but that left me wondering.....

1) When I let my cpu handle physx is the graphical effect differ from it when I am using gpu to handle it?

2) is my cpu even doing advance physx? because from what i recall advance phyx is only nvidia exclusive.


Thanks

 

[Deders]

Can you give us some screenshots from the Arkham City benchmarks? The PhysX effects are easier to differentiate then in metro.

What kind of performance hit do you get?

 

[hunkeelin]

^ Well by simply dedicated my cpu to handle advance phyx in nividal control panel I got a 20fps boost. I am unsure whether doing that simply disable phyx or simply off load my gpu to render more grahpics. I am perplex.

 

[Deders]

Do you get sparks in the steel mill like this: (it usually looks like more because of how fast they move)

Dynamic Smoke like this

And this

And are there as many bits of ice as here:

From what I understand in the Batman games at least, the amount of PhysX objects is limited by the amount of pixel shaders, My 780 has 2304 shaders total so there are a fair few objects.

 

[hunkeelin]

^ well than that's obvious cuz i dont' think cpu can render such details. So i can conlude that what I did was simply disabling physx /=

 

[Deders]

I just tested this on my system and and got a decrease in fps when PhysX was set to CPU in the NVCPL, The sparks in the first pic definitely didn't last as long or bounce off as many surfaces but they were there. The smoke didn't seem quite as dense but there seemed to be just as many bits of ice. Shame my CPU couldn't handle it, the ice scene got about 18fps.

Usually I get an average of 73fps with PhysX on the GPU (this is at Ultrawide 2560x1080) with it on the CPU I get about 48 average for the whole benchmark.

 

[hunkeelin]

^ well i got a fps increase in fps when i set it to cpu. Maybe because my cpu can handle it? I don't know

 

[Deders]

That would be my conclusion, although having it on the GPU is still better visually. I wonder how well it could handle the full thing. It looks very promising.

 

[hunkeelin]

^ For the metro last light benchmark i can't really tell the difference when advance phyx is assigned to cpu other than the 20fps boost.

 

[Deders]

It's not as obvious as it is in batman