They have altered the article. This morning it said that the processor is heavily overclocked and the graphics cards are also OC versions.
30 inch displays for 2560 x 1600 and TripleHead2Go setup with three 20 to 24 inch displays for 5040 x 1050.
Sure Crysis looks better, but as far as I understood this is run on the CPU and not on the graphics card, so I think 16 fps is quite good.
Enthusiast is like very high I think, but you can use it on DX9 now and not only on DX10.
64:1 AF is normal 16:1 AF but the oversampling forces the graphics card to caluclate four times the amount. So the 64:1 AF is calculated and then the result is downsampled to the displayable amount again. It looks a lot better than normal 16:1 AF but it costs a lot of performance.
... you are right that lower settings would be better for CPU tests, but if you reduce the graphics settings in Dirt 2, several features that are stressing the CPU, are deactivated, so the the overall workload for the processor is reduced.