My experience with the 5.21 drivers

[Liquid Snake]

Hmm. The 5.21 drivers fixed the problems i had (some GL apps refused to work). They were faster (at least on my system). Sure, it was only about 1fps faster, but it IS faster

Quake1 Bigass1 timedemo - dont have Q2
5.13
640x480 - 51.1fps
800x600 - 46.6fps

5.21
640x480 - 52.3fps
800x600 - 47.9fps

P3-550
256MB SDRAM
Abit BX6 Rev.2
G400MAX 32MB

[Blade Runner]

My experience was not all that good, System shock 2, the doors and sometimes the textures are moving, reinstalled de 5,15 drivers ans noe every thing is back to normal.
And the performances are not really better.

[tish beta2]

try disabling v-sync