Originally Posted by saturnotaku
Pretty much, yeah. Or at least, the difference in performance is so minuscule as to not be worth the added heat and power consumption between a 260 and the 9800 GT I linked to above.
is an article comparing performance in several games, including Cryostasis. They use a GTX 285, GTS 250 (a bit more powerful than a 9800 GT), and 9600 GT as a dedicated PhysX GPU, when paired with identical cards, both in and out of an SLI configuration.
I saw that article when I was looking at Physx cards. I'd be a bit careful with their results.
For one, they benched Far Cry 2 which doesn't even use Physx, and they actually got differing results at times which leads me to believe they made some errors.
Also, Cryostasis is EXTREMELY heavy on Physx calculations in situations with lots of water, which I highly doubt they took the time to look for judging from their results.