W W GHz GHz GHz GHz

48 Third party marks and brands are the property of their respective owners 87 mm 87 mm 2 2 83 mm 83 mm 2 2 Die size Die size 21 W 21 W 24.5 W 24.5 W Thermal design power Thermal design power 2 MB 2 MB 1 MB 1 MB L2 cache L2 cache 140 million 140 million 77 million 77 million Transistors Transistors 2.1 GHz 2.1 GHz 1.7 GHz 1.7 GHz Frequency Frequency 90 nm 90 nm Dothan Dothan 130 nm 130 nm Banias Banias Pentium Pentium ® ® M processor M processor Si l i con Scal i ng Conti nues to Improve Si l i con Scal i ng Conti nues to Improve Densi ty, Performance, Power, Cost Densi ty, Performance, Power, Cost Mobi l e CPUs Mobi l e CPUs The power challenge Source: Intel 49 Third party marks and brands are the property of their respective owners Sl eep Transi stors Sl eep Transi stors Reduce ALU Leakage Reduce ALU Leakage Scan FIFO Scan out Sleep ALU Body bias Control 37X leakage reduction 37X leakage reduction demonstrated on test chip demonstrated on test chip Scan Scan PMOS PMOS underdrive underdrive V V cc cc PMOS overdrive PMOS overdrive V V ss ss Virtual Virtual V V cc cc Virtual Virtual V V ss ss Scan Scan capture capture control control Dynamic Dynamic ALU ALU 32 32 NMOS overdrive NMOS overdrive V V cc cc NMOS NMOS underdrive underdrive V V ss ss ALU core ALU core 3 3 - - bit AD bit AD ALU ALU Body Body Bias Bias PMOS PMOS Sleep Sleep Body Body Bias Bias V V ss ss external external V V cc cc external external Sleep transistor Sleep transistor and body bias and body bias control control Sleep transistors Sleep transistors Source: ISSCC 2003, Paper 6.1 The power challenge 50 Third party marks and brands are the property of their respective owners Advances i n Power Effi ci ent Desi gn Advances i n Power Effi ci ent Desi gn 50 100 150 200 250 300 350 Cache Switch Cache Igate Cache Ioff Core Switch Core Igate Core Ioff IO bias DCAP lkg Using Using prior prior design design techniques techniques With new With new power power reduction reduction techniques techniques From ISSCC 2005 From ISSCC 2005 Paper 10.1 Paper 10.1 “ “ The Implementation of The Implementation of a 2 a 2 - - core Multi core Multi - - Threaded Threaded Itanium Itanium TM TM Family Family Processor Processor ” ” Power Power W W The power challenge 51 Third party marks and brands are the property of their respective owners

1.72 Billion transistors