Assume that a DDR2-667 2GBDIMMwith CL = 5 is available for 130 and a DDR2-533 2 GB

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Assume that a DDR2-667 2GBDIMMwith CL = 5 is available for 130 and a DDR2-533 2 GB DIMM with CL = 4 is available for 100. Assume that two DIMMs are used in a system, and the rest of the system costs 800. Consider the performance of the system using the DDR2-667 and DDR2-533 DIMMs on a workload with 3.33 L2 misses per 1K instructions, and assume that 80% of all DRAM reads require an activate. What is the cost-performance of the entire system when using the different DIMMs, assuming only one L2 miss is outstanding at a time and an in-order core with a CPI of 1.5 not including L2 cache miss memory access time?

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Computer Architecture A Quantitative Approach

ISBN: 9780128119051

6th Edition

Authors: John L. Hennessy, David A. Patterson

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