The stock speed ASUS P5E3 Deluxe does well at WinRAR, slightly beating the DDR2 based Gigabyte X38-DQ6 – but both are beaten by the Gigabyte P35-DS3R with high speed DDR2 memory.
When overclocked, the P5E3 dominates the WinRAR results.
HDTach
For SATA HDTach, the P5E3 ties the Gigabyte X38-DQ6, and both beat the P35 based boards badly.
For IDE HDTach, the X38 chipset based P5E3 is beaten up – VERY badly – by other boards. Frankly, it looks like ASUS may be using a USB to IDE controller to support the IDE channel on the motherboard.
USB performance is basically even across the board, except for the horrible %8 CPU utilization at stock speeds by the P5E3.