Benchmark: 3DMark 11
3DMark 11 is the latest version of this hugely popular synthetic benchmark. Making use of DX11 features such as tessellation, compute shaders and multi-threading, it provides modern-day results and is available as a free download.
It's never nice finishing near the bottom of a 3DMark 11 graph, but let's not forget, the cost of all the above graphics cards ranges from just under £200 to over £700. They go from quick, to very quick, to insanely quick.
ASUS's GTX 560 Ti DirectCU II TOP, like Sapphire's Radeon HD 6950, falls into the quick bracket.