vid is not everything as I got 2 580 gtx SC's and one has a vid of 1.063 and the other 1.082. One would think they would not overclock very well. I ran both cards
at 1.088 at 900/2100 and ran everything I at threw at them all night.. No artifacts. I did not try lower voltages or higher overclocks.. I wanted 900 on the core and 2100 on the ram.
So I tried that first and it ran fine.. SO im very pleased. I may try for more later when I get a faster/better overclocking cpu.. My 980x sweet spot is 4200mhz.. 4400mhz needs 1.40 volts underload to be stable! When means i have to set it at 1.462 in bios. Thats too much for voltage in my book for 24/7