Is anyone here running SLI (2 cards) and monitored the voltages of the two cards?
Seems the voltage bug is present on mine after watching them in GPUZ, followed the advice from another forum and worked out an offset between the two core clocks that syncs the two voltages and everything is running much smoother now. How it works I have no idea as it still ends up with the cards at the same clock in game, but the voltages are definately similar.
I had one at 1.225 and one at 1.108 before sorting it, surprised it didn't crash at stock!
It's a known bug and has been around since the cards were released, god knows why they haven't fixed it yet.
Flashing the BIOS will help sort it