Nvidia's latest DX11 GPU squares up against ATI’s HD 5770, but there's a surprise third option...

The Radeon HD 5770 is a surprisingly capable GPU that costs a wallet friendly £120 - PowerColor's PCS+ looks to build on it thanks to an overclock, a copy of Dirt 2 and a custom cooler.

Cypress, the GPU behind the Radeon HD 5870, is the world's first DirectX 11 compliant graphics processor and it's also the world's fastest single GPU graphics card. We go in depth to examine the architecture behind Cypress and draw comparisons to generations passed.