Question: Suppose, instead of SDRAMs, the memory unit is designed using DDR SDRAMs. What is the average memory latency. Ic and Dc: Latency = 1 ns,

Suppose, instead of SDRAMs, the memory unit is designed using DDR

Suppose, instead of SDRAMs, the memory unit is designed using DDR SDRAMs. What is the average memory latency.

Ic and Dc: Latency = 1 ns, hit ratio = 0.95 (assume the same for both caches) L2 cache: Cache line = 32 B, latency = 3 ns, hit ratio = 0.9 Main memory: 400 MHz SDRAM, 32-bit (4B) data bus

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