Nvidia’s GTX580 was my favourite video card for a very long time, and I have been equally impressed with its successor, the GTX680. We have already analysed several versions of the new design, but I can genuinely say that today we really do have something special for you. KFA2 have released two new overclocked, Limited Edition versions built around a stunning white PCB, with triple fan cooler. We have the more expensive version on test today with very limited availability, is it as good as it sounds? More importantly it is worth the staggering £559.99 inc vat asking price?