GPU comparison (passwords per second)

[wgmmmx]

For example this: http://www.golubev.com/gpuest.htm

This list is not actual why ?
With 7970 we got with ocl 2500 in sha1(on stock clock and about 3300 on 1,1ghz) and on this list I see only 1980 then is about 25% slower then in real world.
I think same will be with any other new AMD GPU card from 7970 to newest(290x, 295x, 280x, 290, 280 etc).