Test: CPU Performance
The SiSoft XI results are much the same on all nine motherboards because they were all tested using the same Core 2 Duo processor which operates at 2.66GHz on every board.
The lower the Super PI score the better, which means that the ASUS P5K Deluxe was the best performing motherboard in this test. Overall the scores were much the same with the P5K Deluxe being the only standing out product in this test.
The last processor benchmark used for testing is PCmark2005's processor test which measures file encryption and decryption performance. As you can see the boards scored between 72-74MB/s making the 2MB/s difference somewhat insignificant.