simply say...
Core i7-900XM (quad Extreme Edition, 8MB L3 cache, HTT and Turbo Boost, >45W)
Core i7-800QM (quad, 8MB L3 cache, HTT and Turbo Boost, 45W)
Core i7-700QM (quad, 6MB L3 cache, HTT and Turbo Boost, 45W)
Core i7-600M (dual with 766MHz graphic, 4MB L3 cache, HTT and Turbo Boost, 35W)
Core i7-600LM (dual with 533MHz graphic, 4MB L3 cache, HTT and Turbo Boost, 25W) - aka Low Voltage
Core i7-600UM (dual with 500MHz graphic, 4MB L3 cache, HTT and Turbo Boost, 18W) - aka Ultra Low Voltage
Core i5-500M (dual with 766MHz graphic, 3MB L3 cache, HTT and Turbo Boost, 35W)
Core i5-400M (dual with 766MHz graphic, 3MB L3 cache, , no HTT, Turbo Boost only, 35W)Core i3-300M (dual with 667MHz graphic, 3MB L3 cache, no HTT, no Turbo Boost. 35W)
what is HTT??I thought that core i5-500M had the same funtion as i5-400M and the only different is higher clock??