amd physx vs nvidia physx

[Godlygamer23]

I'm going to do some testing between CPU based PhysX and GPU based PhysX with Batman Arkham City.

[Godlygamer23]

<deleted>

[TechFan@ic]

Dispite what most people say or think, you can run PhysX on a system with an AMD graphics card, the calculations will be offloaded to the CPU instead of the GPU & the effects will look identical.

I personally tried this on Borderlands 2, set PhysX to high with an Nvidia graphics card installed & with an AMD graphics card installed, the effects look identical the only difference will be performance, in my particular case Borderlands 2 with PhysX set to high was running faster on the CPU but usually, offloading the calculations to the CPU will have a larger impact on performance, depending on how powerful the CPU being used is, with a modern quadcore Intel Sandy Bridge or Ivy Bridge the performance impact should be very acceptable.

Specs : Core 2 Duo E8400 OCed to 3.41Ghz

Graphics : AMD HD 4870 1GB, Nvidia 8800 GT 1GB

RAM : 6GB .

[Godlygamer23]

http://linustechtips.com/main/topic/20558-physx-cpu-vs-gpu-batman-arkham-cityand-without-physx/

[GamerDude]

I saw an article on physx and when you moved the physx to CPU, the CPU usage doesn't change at all. I think Nvidia purposely gimped Physx on CPU, right now its not a "cpu is slower" issue, its a "Nvidia is a dick" issue.

Yes, someone who sees it like it really is! ;)  nVidia would not allow PhysX to run better on CPU than on their GPU's, it's gimped so that nV GPU's run it better. nVidia fanboys always cite PhysX as a reason to get an nVidia card, but why? Only a handful of games would benefit from GPU accelerated PhysX, most are offloaded to the CPU. I recall seeing a benchmark where the HD7970 ran a game faster with CPU doing the PhysX work against a GTX680 doing PhysX as well.....can't recall which benchmark though.

 

I have 2x GTX670 2GB in SLi, and if a game doesn't defaults with PhysX enabled, I'd play the game w/o PhysX.....and still enjoy it just as much. Just like I'm playing Metro Last Light w/o Advanced PhysX on my main rig, and yet I'm having a great time playing the game.

[Frix]

I thought AMD had PhysX but not Advanced PhysX which is the thing everyone wants

[xAcid9]

I thought AMD had PhysX but not Advanced PhysX which is the thing everyone wants

PhysX is Nvidia proprietary realtime physic engine.

[DeViLzzz]

Dispite what most people say or think, you can run PhysX on a system with an AMD graphics card, the calculations will be offloaded to the CPU instead of the GPU & the effects will look identical.

I personally tried this on Borderlands 2, set PhysX to high with an Nvidia graphics card installed & with an AMD graphics card installed, the effects look identical the only difference will be performance, in my particular case Borderlands 2 with PhysX set to high was running faster on the CPU but usually, offloading the calculations to the CPU will have a larger impact on performance, depending on how powerful the CPU being used is, with a modern quadcore Intel Sandy Bridge or Ivy Bridge the performance impact should be very acceptable.

Specs : Core 2 Duo E8400 OCed to 3.41Ghz

Graphics : AMD HD 4870 1GB, Nvidia 8800 GT 1GB

RAM : 6GB .

You lie.  It does not look the same.  Check out AMD vs Nvidia Borderlands 2 videos and more on Youtube.  Clearly physX effects are better on Nvidia.

[TechFan@ic]

You lie. It does not look the same. Check out AMD vs Nvidia Borderlands 2 videos and more on Youtube. Clearly physX effects are better on Nvidia.

If you set a game setting to high, it will look exactly the same on whatever hardware you run it, the only difference is going to be performance.

In my 1872 posts on this forum I've never even once lied, I might make a mistake but I would never lie, please show some manners sir !

[GamerDude]

You lie.  It does not look the same.  Check out AMD vs Nvidia Borderlands 2 videos and more on Youtube.  Clearly physX effects are better on Nvidia.

So says the guy who's so obviously a TWIMTBP guy....... :rolleyes:

[EmmaLong]

You lie.  It does not look the same.  Check out AMD vs Nvidia Borderlands 2 videos and more on Youtube.  Clearly physX effects are better on Nvidia.

No he's not, the borderlands 2 videos you're talking about are comparisons of PhysX set to "high" or "low" which is off.

You can go to the game settings & enable PhysX on an AMD card just like you do on an Nvidia card, the CPU will do the work, this is well known, google Borderlands 2 PhysX AMD.

[Ddm5]

They both suck. Physics by Havok and etc ... are much better because they don't have the performance hit like AMD and nvidia versions. I mean look at the Physics in BFBC2 and BF3 they are way better than anything from nvidia and it does not make the game slow down to a crawl.

Battlefields Physics are built directly into the frostbite engines, they have had tons of time to play around and improve the physics throughout the battlefield series, just an fyi, bear in mind PhysX is an optional extra.

[Tr3vor]

You lie.  It does not look the same.  Check out AMD vs Nvidia Borderlands 2 videos and more on Youtube.  Clearly physX effects are better on Nvidia.

 

http://www.youtube.com/watch?v=HzEVixM-L4s

 

Literally the same thing.