MSI K9A Platinum ATI CrossFire XPress 3200 for AM2
True to their word, ATI's new SB600 Southbridge can deliver excellent Serial ATA performance, right on par with nVidia's highly refined Serial ATA controllers. Our WD Raptor drives we used for testing are still Serial ATA-150 based, which is why we see burst transfer rates peak out at about 125 MB/s. Sustained rates are identical between the platforms, and MSI's SATA controller even uses a bit less CPU power. If only ATI had included RAID-5 support, we would have absolutely nothing to complain about.