A different Problem size and Memory size effect how long the test takes. So if your testing with values below everyone else then your not going to run as hot which means you can run at a higher speed. LinX is a good Stress Test but a Poor Benchmark.
I didn't have much difference in-between the 10 tests I ran with two different clocks, when changing the Problem size myself. But as slaymate, I'm alittle curious with the higher end machines. What I'm really wondering is if zmatt's sandbagging and going to come in later for the kill. .
Superpi isn't multithreaded which IMO makes it much less interesting and relevant. Also in the past some people have complained that it is biased against AMD which I suppose is the reason we have two separate lists for it.