Linux 2.6.32-5-686 #1 SMP Mon Oct 3 04:15:24 UTC 2011 i686 GNU/Linux
AMD driver ver. 11.11 && AMD APP ver. 2.5
just an example:
Adapter 0 - AMD Radeon HD 6700 Series
Core (MHz) Memory (MHz)
Current Clocks : 1005 510
Current Peak : 1005 510
Configurable Peak Range : [500-870] [510-1430]
GPU load : 99%
...
EDIT::Oh, since it isn't obvious from the uname output: it's Debian.