Originally Posted by DiscipleDOC
Are you saying that I can get the same PhysX performance from a 9800 that I get with a 260?
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.