Hi, sorry if I might ask my question in a wrong place. I try to measure the memory bandwidth on the Atom processor. The frequency of the front end bus is 533MHz and I use DDR2-666. In theory, the memory bandwidth is limited by the front end bus and the maximum memory bandwidth is 4.16GB/s. The memory bandwidth I measured withSiSoftware Sandra and my own C program (with memcpy in GNU C library) is 2.6GB/s. I don't understand why there is such difference. The bandwidth I measured is the real bandwidth in the system? Best, Da
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