During our benchmarking sessions we used the configuration listed below. Between our benchmarking sessions the only different device was the CPU being tested and also the motherboard, since the tested CPUs use different socket types.
Memory: Two 256 MB PC3200/DDR400 TwinMOS memory modules, using DDR Dual Channel configuration on Soyo P4I875P, Gigabyte 7NNXP and ASUS A8V Deluxe motherboards.
Hard Drive: Maxtor DiamondMax 9 Plus (40 GB, ATA-133)
We adopted a 3% error margin. Thus differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.