Does anyone know of a good and free benchmark program?
Best DX 11 Benchmark that is free is Unigine Heaven, 3DMark 11 is only free at shit resolutions. I use Heaven to bench my card to find stable overclocks. For CPU thermal benching I use Prime95, it maxs out the CPU so I can check my overclock cooling levels. Also OCCT and Linpack64 will rape your CPU and thermal stress it like no program can. If you run stable on those for a few hours, your overclock will withstand anything you throw at it.