When we reviewed the reference GTX560Ti a month ago we found it completed the nVidia dominance of the major gaming GPU market. Hugely overclockable, quiet, great performance. It really was all things to all men.Today we're taking a look at the high-end Gigabyte Super Over Clock (SOC) variant which comes with a big overclock out of the box and a twin-fan cooler compared to the single fan of the reference design.How does this fare when compared to already brilliant reference design? Let's find out.