Memory performance - con't
The following Cachemem latency graphs are a little indulgent, but they do a good job of highlighting access latency across various block and step sizes. The Core 2 Duo runs out of on-chip cache after a block size of 4096KB, so you'll want to pay more attention to the memory access latencies that follow with larger block sizes.

I've arranged the following graphs in order of highest to lowest latency with a common Z-axis to aid comparison. These access latency results are from our two-DIMM system configurations.

Cachemem latencies are notably lower on the 680i than they are on Intel's chipsets. With the exception of the 570 SLI, the nForce chipsets fare particularly well with smaller step sizes.