Originally Posted by erocker
No. Borderlands 2 should be able to run off of one GTX 680 without a problem. I don't think the issue is with PhysX. FYI, I can run PhysX forced on high (running off of my CPU) without a problem.
Sorry erocker but i think your wrong on this one, My friend tried running PhysX of his CPU because hes running a AMD card and as soon as the PhysX effects get intense hes would get really bad lag like 5 fps, Also my other friend is running a single GTX 580 was also getting frame drops when a lot of PhysX were getting generated.