The AMD HD5870 – the fastest single-GPU card available?

By now we are used to see new video cards being released from AMD and NVIDIA in the spring and fall. This year is not different except that it coincides with the release of Windows 7 together with DirectX for Windows 7 and Windows Vista. Since AMD already has had experience with some of the new features of DX 11 through the support of DX10.1, which is a sub-set to DX11, it probably is no surprise that it looks like AMD will be the first vendor to offer cards with DirectX 11 support. During a...