HDTach is a free hard disk benchmarking program from SimpliSoftware. This benchmark is not only capable of producing results on hard disk access times but also CPU usage required during disk access. The "Long bench" was run a total of 5 times with the highest and lowest results being omitted and an average calculated from the remaining 3 results.
SiSoftware Sandra (the System ANalyser, Diagnostic and Reporting Assistant) is an information & diagnostic utility capable of benchmarking the performance of individual components inside a PC. Each of the benchmarks below were run a total of five times with the highest and lowest scores being discarded and an average being calculated from the remaining three.
This page shows there really isn't much of a gap between any of the boards, whether they utilise the ICH9R or ICH10R chips. The DFI won out very slightly on the HDTach Burst Transfer rate, but the difference was in no way significant. A slightly anomalous result came from the P45D3 on the Sandra Disk read indexing test, but after the 5 runs the results were consistent.