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Software to get the gpu to handle "physx" instead of the cpu? - Page 2

post #11 of 15
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Originally Posted by DannyDK View Post

OK. What about physics in genneral, thats the CPU´s job right? AMD CPU are as everyone knows not as powerfull as Intel ones (not a fanboy i have both an AMD and Intel rig) , so if the physics part could be handled by the GPU it would give the CPU a boost of sorts. I know that HSA was/is supposed to help with that but nothing support that it seems :-(

CPU physics and GPU PhysX are 2 entirely different things.

The GPU-accelerated PhysX effects like the goo particles you see in Borderlands, the particle distortion fields in Hawken, or all the particle effects and stuff in the Batman games are only possible on an Nvidia GPU.

There are CPU physics effects (even the PhysX engine does some basic CPU physics), but you cannot get the flashy PhysX effects to run on a CPU.

Literally the only solution if you want those effects is to buy an Nvidia GPU. No CPU slowdowns or speedups or anything. Just 2 totally separate physics things. thumb.gif
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post #12 of 15
Quote:
Originally Posted by DannyDK View Post

OK. What about physics in genneral, thats the CPU´s job right? AMD CPU are as everyone knows not as powerfull as Intel ones (not a fanboy i have both an AMD and Intel rig) , so if the physics part could be handled by the GPU it would give the CPU a boost of sorts. I know that HSA was/is supposed to help with that but nothing support that it seems :-(

Most, if not all, physics will be computed by the CPU. Physx is an API for certain physics attributes like sparks, smoke and rubble/debris movement. Physx isn't a common feature in games only Borderlands, Maffia and the comming Witcher is worth mentioning. I bought my 980 just for the Witcher 3 cos it's a physx enhanced game.
post #13 of 15
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OK. Must admit that the physix part where some of the reasons why i bought a 980, do know that its not the same as Physix (English not being my native tung makes a bit difficult sometimes to explain and ask about things). So i can conclude that Physix is Nvidia only (unless you hybrid) and is only handled on the GPU, Physics is being handled by the CPU alone (for now) on both AMD and Intel side and AMD is the onlyone (when talking about 4 cores) that would realy bennfit from it, correct? :-)
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post #14 of 15
Quote:
Originally Posted by DannyDK View Post

OK. Must admit that the physix part where some of the reasons why i bought a 980, do know that its not the same as Physix (English not being my native tung makes a bit difficult sometimes to explain and ask about things). So i can conclude that Physix is Nvidia only (unless you hybrid) and is only handled on the GPU, Physics is being handled by the CPU alone (for now) on both AMD and Intel side and AMD is the onlyone (when talking about 4 cores) that would realy bennfit from it, correct? :-)

Yea you pretty much got it, only that the physics calculation are practically the same on both the amd and intel cpu's. smile.gif

Youtube PhysX, there you can see a lot of collision and debris eyecandy calculation gpu wise, .. all done with nvidia gpu's!
post #15 of 15
Quote:
Originally Posted by DannyDK View Post

OK. Must admit that the physix part where some of the reasons why i bought a 980, do know that its not the same as Physix (English not being my native tung makes a bit difficult sometimes to explain and ask about things). So i can conclude that Physix is Nvidia only (unless you hybrid) and is only handled on the GPU, Physics is being handled by the CPU alone (for now) on both AMD and Intel side and AMD is the onlyone (when talking about 4 cores) that would realy bennfit from it, correct? :-)

It sounds like you're asking about the difference between AMD and Intel CPUs when it comes to CPU physics. CPU physics are the same no matter what your setup is. It's the same on Intel CPUs as it is on AMDs, and your CPU will still do the physics calculations no matter what GPU you have.

GPU PhysX, on the other hand, are entirely separate, are just fancy-looking effects, and are only possible on Nvidia GPUs.

Sorry if I'm not understanding what you're saying. I'm just trying to make sure we're all on the same page. biggrin.gif
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