Not all tests improve that much, but it seems like whenever you're out of VRAM, the performance can improve a LOT.
Originally Posted by tomato
I've finished the tests that I was planning on running. Heaven improved the most, but when I ran Xonotic at 1920x1200 at the highest settings, the framerate went from 9fps to 29... Not bad for just a kernel upgrade with a few hundred lines of changed code.
The tests include:
World of Padman
Reaction Quake 3