Galaxy / KFA2 have updated Xtreme Tuner HD, their GPU monitoring and overclocking tool. Xtreme Tuner HD is like EVGA Precision / MSI Afterburner but with missing features like the GPU / memory usage. If you want to test it, you can download it HERE.
Xtreme Tuner HD works with NVIDIA cards (I tested it on an EVGA GTX 480) but no idea if it works with ATI boards too.
Xtreme Tuner HD does not support ATI Radeon cards:
Thanks to Psolord for the test 😉