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Lab 2 Central Processing Unit TA ：黃俊輔, jojoman ：

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1 Lab 2 Central Processing Unit TA ：黃俊輔, jojoman Email ： r93921109@ntu.edu.tw

2 What ’ s new Intel from “ http://www.intel.com ”

3 What ’ s new Intel Pentium ® M Processor Intel ® Centrino ™ mobile technology represents Intel's best notebook technologies designed specifically for mobile computing with integrated wireless LAN capability, breakthrough mobile performance while enabling extended battery life and sleek, easy-to- carry notebook PCs. From “ http://www.intel.com ”

4 What ’ s new AMD Desktop Processors Mobile Processors Server Processors Workstation Processors from “ http://www.amd.com

5 Amdahl ’ s Law

6 EX:Consider an enhancement that takes 20ns on a machine with enhancement and 100ns on a machine without. Assume enhancement can only be used 30% of the time. What is the overall speedup ?

7 Amdahl ’ s Law

8 Performance Super Scalur execute more than one instruction at the same time. Ex:Intel Pentium ® 4 Processor with HT Technology

9 Performance Super Pipeline cut the instruction into more stages. Ex: Intel Pentium ® 4 Processor has 20-stage pipeline while P-3 has 10-stage pipeline. penalty

10 Reference http://www.intel.com http://www.amd.com http://www.big5.tomshardware.com

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