So I jumped the gun...

[Clay Pigeon]

IIRC 8800s are the oldest that will do physx.

[Buzzy Beetle]

By the logic, I didn't know you could do this either! I'm still running a 8800GT I've been looking to get a new video card soon (and by "soon" I mean "between now and mid-January") and I was really eyeing up the Radeon 6870s... with this in mind perhaps a GTX 460 is in order... Thoughts?

[Araris]

By the logic, I didn't know you could do this either! I'm still running a 8800GT I've been looking to get a new video card soon (and by "soon" I mean "between now and mid-January") and I was really eyeing up the Radeon 6870s... with this in mind perhaps a GTX 460 is in order... Thoughts?

You need a motherboard with 2 PCIe x16 slots if you use a secondary for PhysX, while a GTX 460 + 8800GT combo would be pretty sweet, the 6870 performs similar to a 5870 (with better tesselation) which performed similar to a GTX 470 so the 6870 would be more powerful. Up to you I suppose, it's like a 10-15% performance difference, do you really use games with PhysX that much?

[MrBlah]

By the logic, I didn't know you could do this either! I'm still running a 8800GT I've been looking to get a new video card soon (and by "soon" I mean "between now and mid-January") and I was really eyeing up the Radeon 6870s... with this in mind perhaps a GTX 460 is in order... Thoughts?

You need a motherboard with 2 PCIe x16 slots if you use a secondary for PhysX, while a GTX 460 + 8800GT combo would be pretty sweet, the 6870 performs similar to a 5870 (with better tesselation) which performed similar to a GTX 470 so the 6870 would be more powerful. Up to you I suppose, it's like a 10-15% performance difference, do you really use games with PhysX that much?

Yeah Araris makes a solid point here. If you aren't going to be playing many games with the use of PhysX, its not worth the effort to go forth and have it completed.