AMD Graphics + PhysX Possible?

[Niode]

After seeing the very impressive Arkham City PhysX demo it made me want to check out this old chestnut. Is it possible to use, say a cheap 9600 or something like that in conjunction with an AMD HD6950 to enable PhysX? I know at one point this was possible due to hacked drivers etc. I wondered if nVidia closed the door on it, or if it's not compatible with newer games?

Anybody know any info regarding this?

[neilencio]

OTOH, it used to be possible, but nVidia started disabling Physix if a non-nVidia card is detected on the dual card system. They got a lot of flak for it, but nothing's changed.

I remember that their official reason is that they don't want to deal with customer support for problems that were caused by a different manufacturer's card, and also to avoid incompatibilities and stuff like that.

[KillerJuan77]

It's not possible nowadays, plus, it's a bit of a warning, PhysX in general is insanely demanding. I get 60-40 FPS (V-Sync enabled) on Batman Arkham Asylum on medium PhysX on a single GTX 460 1GB @800/1600/1800mhz, I get 55-20 FPS on High PhysX on the same PC. It basically requires 2 GPU's.

[Niode]

It's not possible nowadays, plus, it's a bit of a warning, PhysX in general is insanely demanding. I get 60-40 FPS (V-Sync enabled) on Batman Arkham Asylum on medium PhysX on a single GTX 460 1GB @800/1600/1800mhz, I get 55-20 FPS on High PhysX on the same PC. It basically requires 2 GPU's.

Yes but I'd be using a separate GPU solely for PhysX which mitigates that issue entirely.

[KillerJuan77]

It's not possible nowadays, plus, it's a bit of a warning, PhysX in general is insanely demanding. I get 60-40 FPS (V-Sync enabled) on Batman Arkham Asylum on medium PhysX on a single GTX 460 1GB @800/1600/1800mhz, I get 55-20 FPS on High PhysX on the same PC. It basically requires 2 GPU's.

Yes but I'd be using a separate GPU solely for PhysX which mitigates that issue entirely.

2 GTX 460's should be enough for the game, unless the DX11 options are insanely demanding, in that case I'd get 2 GTX 460's and an 8800gt for PhysX (For 1080p60 gameplay at max settings).

[Niode]

It's not possible nowadays, plus, it's a bit of a warning, PhysX in general is insanely demanding. I get 60-40 FPS (V-Sync enabled) on Batman Arkham Asylum on medium PhysX on a single GTX 460 1GB @800/1600/1800mhz, I get 55-20 FPS on High PhysX on the same PC. It basically requires 2 GPU's.

Yes but I'd be using a separate GPU solely for PhysX which mitigates that issue entirely.

2 GTX 460's should be enough for the game, unless the DX11 options are insanely demanding, in that case I'd get 2 GTX 460's and an 8800gt for PhysX (For 1080p60 gameplay at max settings).

Why would I want 2 GTX 460s when I have a HD6950 2GB?

[KillerJuan77]

Why would I want 2 GTX 460s when I have a HD6950 2GB?

Due to PhysX, Nvidia 3D Vision and the fantastic overclock capabilities? (It's easy to OC one to GTX 470/570 levels)

[Niode]

Why would I want 2 GTX 460s when I have a HD6950 2GB?

Due to PhysX, Nvidia 3D Vision and the fantastic overclock capabilities? (It's easy to OC one to GTX 470/570 levels)

Meh... The only thing that appeals to me is the PhysX, a 570 wouldn't really give me much over my 6950 (which has been bios modded to 6970) besides a very large hole in my pocket. nVidia GPUs are ridiculously overpriced. 3D vision means nothing to me since I don't have (nor want) a 3D monitor. Overclock? My 6950 already outperforms a 470 by a large margin anyway and I haven't even over clocked it.