"At 10,000-rpm, the Western Digital VelociRaptor WD6000HLHX drive certainly spins faster than the competition. But does faster rotations-per-minute translate into faster performance? The PC World Lab's tests show this drive may not have as much advantage as it once did. Compared with standard desktop drives that spin at up to 7200-rpm, the VelociRaptor had a distinct edge. But the performance gap narrowed considerably when the latest, pricey VelociRaptor (600GB drive costs US$329) -- one of the very few hard drives today with a 600-Gbps SATA connection-went up against another SATA-600 drive, from Seagate."