I just saw this on [H]ardOCP and thought some people over here might find it interesting

http://dee.cz/lightsmark/

It looks pretty good (the music is a little annoying but it can be changed)

Downs*cking, lets see what it does .

--- EDIT ---

This is Lightsmark 2007 log. Check it if benchmark doesn't work properly.
Started: "C:\Archivos de programa\Lightsmark 2007\bin\win32\fcss_sr.exe" 1440x900 fullscreen
ERROR: OpenGL 2.0 capable graphics card is required.

Please update your graphics card drivers.
If it doesn't help, contact me at dee@dee.cz.

Supported graphics cards:
 - GeForce 5xxx
 - GeForce 6xxx
 - GeForce 7xxx
 - GeForce 8xxx
 - Radeon 9500-9800
 - Radeon Xxxx
 - Radeon X1xxx
 - Radeon HD2xxx (partially)

err... OpenGL 2.0 capable graphics card is required, like some in that list do.