I've had a lot of fun pushing this cheap second hand reference card and wanted to share. It has been flashed with a higher power XFX MERC 400w bios, running a Bykski block with PTM7950. This was done with ambient temp around 24 degs, core voltage 965mv, memory 2800mhz.
Daily (so far stable) OC is around 31k which I believe surpasses a stock XTX. Could be one of the fastest daily used reference cards getting around?