I've bought it used on Ebay but the GPU looks pretty unused/new. The seller says the card worked fine but with Windows 10 I get about 1 MH/s at 300 MHz and with Ubuntu I get about 10 MH/s at 501/1400 MHz and 95 C or 9 MH/s at 400/1250 and 90 C. The GPU ignores completely every input from MSI Afterburner and with Ubuntu everything above 501 MHz. Changing the mem clocks with Ubuntu works fine.

If I start Furmark I get about 11 FPS and GPU-Z says the core clock stays at 300 MHz. Tomorrow I will install and try the CoD 4 demo.