![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}
-
Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
9800gt for physics
- Thread starter Robert_J
- Start date
Fantasysage
Limp Gawd
- Joined
- Mar 29, 2010
- Messages
- 304
It takes the physx load of the other GPU(s). This only works in phyxs enabled games, but it will make quite a difference in these titles. You would have to ask around how to hack your ATI drivers to work with an nvidia card, all I know is that it has to be done.
- Joined
- Jul 11, 2001
- Messages
- 12,826
If you are playing a PhysX game without hardware acceleration then you are accelerating PhysX on the CPU, so adding a card for PhysX would be taking the load off of the CPU in most cases.
It's worth noting however that most PhysX games have different levels of PhysX to accommodate different hardware. This results in game performance actually being slower with hardware physx in certain situations, but of course you'll have more particles, etc everywhere.
And it is correct that you will have to use hacked drivers. Nvidia has been in "sore loser" mode since ATI's 4xxx cards and they feel they need to maintain their market-share via artificial means such as limiting tech like PhysX from working when an ATI card is present.
It's worth noting however that most PhysX games have different levels of PhysX to accommodate different hardware. This results in game performance actually being slower with hardware physx in certain situations, but of course you'll have more particles, etc everywhere.
And it is correct that you will have to use hacked drivers. Nvidia has been in "sore loser" mode since ATI's 4xxx cards and they feel they need to maintain their market-share via artificial means such as limiting tech like PhysX from working when an ATI card is present.
InvisiBill
2[H]4U
- Joined
- Jan 2, 2003
- Messages
- 2,608
As Fantasysage said, it simply allows the video card to process physics-related instructions. GPUs are designed differently from CPUs, and therefore are better for the types of calculations required for physics stuff (though CPUs are better than GPUs at processing other types of calculations).
Just like a video card speeds up 3D video calculations, a PhysX card will speed up PhysX calculations in games that support it. http://en.wikipedia.org/wiki/PhysX#Title_support is a list of titles using the PhysX SDK, but not all of them support GPU PhysX. Batman:AA, Mirror's Edge, and Metro 2033 are the biggest GPU PhysX titles that I know of.
You're actually hacking the Nvidia driver, not the ATI driver. Nvidia added a check to their drivers which disables PhysX if it detects an ATI card installed in the system. GenL's patch modifies the Nvidia files to ignore that check.