Originally Posted by leopold1985
I have the msi gtx560ti twinfrozr 2 oc version installed in my sig rig. My mobo has an unused pci-e 4x slot. I understand that it is quite sufficient for a physx card. In a few days I will get an XFX 9600GT 512mb ( no 6pin power needed) card and I was thinking about adding it as a dedicated physx card. So guys, please help me make my decision. what kind of increase in fps am I looking at here? how to set it up, any special step to take? (please remember that I wont buy cards like gt240/250/9800gtx, i am getting this 9600gt for free and i will either use it or sell it to start saving money for my move to intel).
I will be immensely happy if I find ~10fps gains. So people, please educate me on this!
The most important part of this venture is that it is a free card.
This is a very good starting point for consideration of any Physx card.
The only way to find out is to try it out with your sig rig. There are really not many games with Physx and I think Mafia II is one with a built-in benchmark utility. If you do not have the game, just download the demo version which contains the utility.
There is no special step to setup the card. Just plug the card in. Power up and it might be recognized. If not, I would just uninstall and reinstall the latest Nvidia driver package. Or, simply use the Clean Install option without even doing any uninstalling. Then, once the 2 cards are properly recognized, go to Nvidia Control Panel and choose the 9600GT as the Dedicated Physx card. Simple and straight forward.
Nvidia says a minimum of 32 shaders for Physx. Many people in the net, including myself, would say a minimum of 96. As the 9600GT has 64, it might still work. As already said, the only way to be certain is to try it on a rig. My prediction is that you will not see a +10fps.
There are different types of Physx coding. One is Apex Physx used in Mafia 2. The effects are flowing clothing and particle debris. Even if you have a Nvidia graphics card as the main card to do render and Physx effects, the flowing clothing portion is still handled by your CPU
. However, if you have a Dedicated Physx card, both flowing clothing and particle debris will be handled by the Dedicated GPU. So, in a certain situation, even with a powerful Nvidia graphics card as the main card, having a Dedicated Physx card can still assist by taking some load off from the CPU. This is a relatively little known fact of Physx.Edited by windfire - 5/19/11 at 7:03am