Intel Core i7-640M SLBTN 2.8GHz 4MB Dual-core Mobile CPU Processor Socket G1 988-pin Base clock is 2800 MHz and Turbo is 3467 MHz Bus speed: 2.5 GT/s DMI, Clock multiplier: 21, Socket G1 2 cores, 4 threads, L2 cache: 2 x 256 KB , L3 cache: 4MB Thermal Design Power: 35 Watt Warranty:3 month