First post, be kind.
Just wondering if memory speed and/or interface affects physx, the reason being i've got these cards
XFX 8800 GS Alpha Dog Edition (384 DDR3 192 Bit) (Got 2 of these)
Asus 9600 GSO Magic (512 DDR2 128 Bit)
I think they use the same GPU, just wondering which to use...