I just compiled results of Core i3 to Core i7 Mobile GPU, with Geekbench benchmark, comparing them to actual flagship of the Mac laptop, Core2 Duo T9600 2×2.8Ghz (2 threads). And results are astonishing!
The graphic just to have an overview on 32bits (blue) and 64bits (green) :
Core i3 Mobile
The Core i3 mobile cpu is available in 2×2.13Ghz and 2×2.26Ghz, with 2 physical cores and 4 threads (hyper-threading) but only 3MB cache. They offers approximately the performance of Core2 Duo 2×2.53Ghz and 2×2.66 Ghz respectively, that is speed of mainstream actual MacBook Pro in 13″ and 15″, at the entry-level of the new Mobile lineup!
Core i5 Mobile
The Core i5 mobile cpu is available in 2×2.26, 2×2.4Ghz and 2×2.53Ghz, with 2 physical cores and 4 threads (hyper-threading) with 3MB cache as Core i3, but they add Intel Turbo-Boost technology, with respectively 2×2.53, 2×2.93 and 2×3.06Ghz. Latest model (Core i5 540M 2×2.53 to 2×3.06Ghz) have not been tested on Geekbench, so there’s no result at this time.
Turbo-boost enable the entry-level Core i5 Mobile processor to largely outperform the Core i3 Mobile of same frequency, offering performance between actual Core2 Duo 2×2.8Ghz and 2×3.06Ghz! First Core i5 Mobile equal the best Core2 Duo Mobile CPU, at only 2×2.26Ghz so needless to say, Core i5 is the way to go, if possible to upgrade your laptop.
2×2.4Ghz with Turbo-boost up to 2×2.93Ghz just outperforms any existing Mobile Mac CPU…
Core i7 Mobile
The Core i7 Mobile CPU will be available on 2×2.66Ghz on Mac laptops with 2×3.33Ghz Turbo-boost, as other Core i mobile cpu, it integrates 2 physical cores and 4 threads with hyper-threading, it have the more impressive Turbo-boost, and sports 4MB cache instead 3MB.
This is a real fast processor with 4900 GeekBench score on 32bits and 5500 on 64bits, offering a 12% boost on 64bits due to it’s larger cache, and 20% faster than 2×3.06Ghz Core2 Duo Mobile.
Which one of these you will find on February 16th, 2010 MacBook Pro?
The early-2010 MacBook Pro lineup is expected this next tuesday, and we won’t be sure of which one will sport which processor, but some choices are obvious:
MacBook Pro 13″ will be offered with Core i3 Mobile processor in 2×1.13 and 2×2.26Ghz, offering same cpu performance-level of actual MacBook Pro 15″ 2.53Ghz and 2.66Ghz. For thermal reason we might not see the Core i5 on 13″ MacBook Pro.
MacBook Pro 15″ will sport the Core i5 processor at 2.26Ghz, 2.4Ghz and 2.53Ghz, offering performance level on a par with 2×3.06Ghz actual customized MacBook Pro, and over! Core i7 maybe offered as a custom option.
MacBook Pro 17″ will probably sports Core i5 2.53Ghz and Core i7 2.66Ghz as custom option, maybe 2.8Ghz if Apple overclock the Core i7 as it did for some previous generations. The 17″ will probably offers 4 DDR3 DIMM support to be upgradeable up to 16GB DDR3 RAM!
Depending on the configuration the CPU performance-level will increase from 10% to 25%, for same price-level… Considering Apple pricing, it’s a gift of $200 to $300! So wait until tuesday to discover the new Mac lineup, and probably new ATI Radeon Mobile GPU too 
A last word: with these dual-core 4-threads cpu, the MacBook Pro will reach the performance-level of original Mac Pro, sporting 2 dual-core server-grade CPU! And I find it exciting!
