Sapphire Radeon HD 5970 OC Edition Review

"Quite simply, the Sapphire HD 5970 OC is the fastest graphics card on the planet, offering shock-inducing performance that cannot be touched by any single or dual-GPU card out there. And with the ability to tweak the voltages to overclock this card even further, we're left both shaking our heads in disbelief and grinning from ear to ear. Though we were unable to test the overclocking capabilities, we don't expect to see massive overclocks, but it is nice to know that voltage tweaks are availabel for diehard enthusiasts. This becomes particularly critical if you put the 5970 on liquid nitrogen and shoot for world records; you need those adjustments that this Sapphire card offers."