I've got a i5 1.7 13" Macbook air with 4GB/256GB that has always seemed slower than my old C2D 13" from last year. I finally ran Geek Bench and XBench on this machine and found that indeed both are benchmarking much slower than they should. I get 1800-2000 on Geekbench when most i5's are getting 5500-6000, and even my old machine tests at 3000. Xbench is similarly low. I've made sure that no other programs are running from the user or system, so that's not the issue. The computer always runs cool and the fans never kick on.. the CPU speed is reported by miniStat as 1.7Ghz. Any ideas? The weird thing is on the Geekbench browser site maybe 5% of the results are similarly low - 1800. The rest are all in the 5000+ range. My memory speeds on Xbench were low as well, but the SSD speeds are normal. Is this some kind of serious bug affecting a minority of machines? Some kind of really overzealous CPU throttling?