I have a i7 DO clocked to 4ghz using win7 x64.
Here are a few problems/questions I have.

1) I get variable Gflop when I run Linx. It would always be consistant during the entire run, but would differ from one session to the next. The funny thing is that when th Gflop is lower, my temps don't heat up as much. Before you say that my CPU is throttling, i have i7 turbo loaded and noticed no drop in the multiplier. This also occured when I was on a q9550.

2) I get lower Gflop (by about 9), when I have HT on vs. Off. Any idea why?