I wasn't aware Borderlands utilised PhysX?
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Also, please correct your signature to be in line with the forum policy. It's explained just above where you enter your signature, so there really isn't an excuse for getting it wrong. ;) We will exercise discretion, but that sig is vertically quite big.
This is a block of text that can be added to posts you make. Your signature can be four lines maximum. There is a 128 character limit per line - at the "Small" font setting; 100 characters per line at "Normal". List system specs horizontally - not vertically.
Ok fixed my signature:).
Yes Borderlands uses Physx, though on newer systems you may not notice so much difference between running physx on cpu or GFX.
On my old P4 3.4 EE the fps would drop very low sometimes. But when i put in a physx card, I could run it in surround with steady 25 to 30 fps.
and on my new computer i get smother fps also.