Single-threaded benchmarks
With its onboard memory controller, the MSI's AMD Athlon 64 FX-62 excels in memory bandwidth terms compared to the Northbridge-based controller on Intel's 975X chipset. The nForce590 SLI chipset, though, manages to grab a little more bandwidth than even the MSI.
This doesn't translate to less latency, though. The AMD Athlon 64 controller clearly takes a little bit longer to start transferring data than the Intel chipset's, although not by a huge margin
Although synthetic benchmarks like our Pifast test only give you an indication of real-world performance, it would be hard to see AMD's Athlon 64 FX-62 turning this kind of performance deficit around in real world testing, irrespective of chipset used.