"Well for all those who have have used Nvidia cards for PhysX and ATI cards to render graphics in Windows 7...All that is about to change.
Since the release of 186 graphics drivers Nvidia has decided to disable PhysX anytime a Non-Nvidia GPU is even present in the same PC. Nvidia again has shot themselves in the foot here and showed they are not customer oriented. Since they are pushing Physx this will not win over any ATI fanboys with this latest decision.
Here is a copy of the email I received from Nvidia support confirming what they have done.
Ill explain why this function was disabled.
Physx is an open software standard any company can freely develop hardware or software that supports it. Nvidia supports GPU accelerated Physx on NVIDIA GPUs while using NVIDIA GPUs for graphics. NVIDIA performs extensive Engineering, Development, and QA work that makes Physx a great experience for customers. For a variety of reasons - some development expense some quality assurance and some business reasons NVIDIA will not support GPU accelerated Physx with NVIDIA GPUs while GPU rendering is happening on non- NVIDIA GPUs. I'm sorry for any inconvenience caused but I hope you can understand.
Yay!, higher Vantage scores . Seriously though, the only people who can really influence how this turns out is the game devs as they are the ones who ultimately decide what to include or leave out of whatever game they intend to make, yes or no?
True, but the devs will have alot of ATI help in their ears while working on DX11 games, which are the ones being worked on now, even if they dont come out til later, as nVidia simply doesnt have DX11 cards for support.
LRB is going to take a huge sgare of influence away from both ATI and nVidia, but mostly nVidia, as theyve been the most successful with their TWIMTBP program. Bad move. May as well shoot themselves, or dump physx now
Well, no ones going to go dump their ATI primary card, just to go get physx.
Another thing is, all those that do have ATI primary, and nVidia doing physx, I see them selling their old cards, which will mainly be bought by? People who prefer nVidia. So, hows that supposed to improve sales? Or further the use of physx when the devs see 40% of the market has been cut out?
Interesting. I've read alot about people trying to use an Nvidia gpu as a Physx card with an ATI video card, but not seeing the enable physx options available in the nvidia control panel. This explains why.
Personally, I have successfully used a 9600GSO as a physx card with my 2x HD4870 set up under windows 7. I used the 182.xx Vista drivers. Since newer drivers aren't going to improve performance when it's only used for physx, people are just going to use the older drivers to get physx to work. All this really does is just piss off customers and drive them toward ATI.