Simple Graphics Card question

How much faster is a Geforce 7600 GS than a Geforce 6800 GS?

That is no SIMPLE question…

Go to tomshardware.com and look at the comparison charts of the graphics cards, to compare FPS with different games:
http://tomshardware.co.uk/site/vgacharts/index.html

This link has the most complete fair comparison I have seen.

http://www.hardwaresecrets.com/printpage/349/6

Looks like the 6800GS is faster than the 7600GS. I happen to have had both cards in the same machine, one after the other, and I would concur.