This simple integer benchmark focuses on the branch prediction capabilities and the misprediction penalties of the CPU. It finds the solutions for the classic "Queens problem" on a 10 by 10 sized chessboard. At the same clock speed theoretically the processor with the shorter pipeline and smaller misprediction penalties will attain higher benchmark scores. For example - with HyperThreading disabled - the Intel Northwood core processors get higher scores than the Intel Prescott core based ones due to the 20-step vs. 31-step long pipeline. The CPU Queen test uses integer MMX, SSE2 and SSSE3 optimizations.
As you can see, the stock results are comparably higher due to the fact that the clock speeds are 900MHz higher. However, when you overclock the system, the playing field soon levels out.