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doctorgonzo · 01-11-2006, 11:42 AM

Is this for a school project or something? Cache memory is not really a "memory system" like SDRAM or RDRAM or Flash memory is, so direct comparisons aren't very useful. Also, not only does cache memory run at different speeds depending on the processor, but how it is accessed and used also depends on the processor.

According to data that I have read, certain Pentium 4 cores have a 256 bit-wide L2 cache, with reads occurring every clock. So a 2 GHz processor would theoretically have 2,000,000,000*256/8=64 GB/s bandwidth.

01-11-2006, 11:42 AM	#4
doctorgonzo Professional gadfly Join Date: Jan 2002 Location: Minneapolis, MN Posts: 6,364	Is this for a school project or something? Cache memory is not really a "memory system" like SDRAM or RDRAM or Flash memory is, so direct comparisons aren't very useful. Also, not only does cache memory run at different speeds depending on the processor, but how it is accessed and used also depends on the processor. According to data that I have read, certain Pentium 4 cores have a 256 bit-wide L2 cache, with reads occurring every clock. So a 2 GHz processor would theoretically have 2,000,000,000*256/8=64 GB/s bandwidth.