AMD64 Chipset Comparison

Despite the different CPU names, memory configurations, and HyperTransport links, single CPU systems based on the Athlon64 and Opteron processors will perform almost exactly the same. Even with different memory clock speeds and configurations, performance differences were negligible. So what does this tell us? Well, since AMD has taken control of the memory controllers, they have basically taken away any major performance differences between chipsets as well. As we’ve seen here, no matter what application or game we ran on the various chipsets, there was no more than a 5% variance in real world performance between the chipsets, which can be accounted for either by the motherboard timings or window of error in our benchmarks. Whatever the case is, we did not see any actual, real, honest to god difference when watching these benchmarks run between the motherboards.

The First AMD64 Platforms Compared : AMD, nVidia, and VIA @ GamePC