Some Radeon HD 6850 came with 1120 shaders enabled

Some press samples of the new AMD HD 6850 graphic cards shipped into many IT web-reviewers came with 1120 shaders enabled instead of 960 shaders as mentioned on the AMD specifications leaked ,so don't get confused when you see some HD 6850 perform faster than other ones :

techpowerup guys:

One major issue with the sample I received was that it came with 1120 shaders enabled. The HD 6850 specification requires 960 shaders. Unfortunately neither HIS, nor AMD could provide help with getting the board fixed so I had to reconfigure the shaders on my own. This review shows the correct performance numbers you should expect from a 960 shader HD 6850. If you see other HD 6850 reviews on the web that show surprisingly high performance, please ask the reviewer to check fillrate or using GPU-Z. I know of one other site who received a Sapphire HD 6850 with 1120 shaders enabled, so the problem might be more widespread.