The Quantum's Business Disk WinMark score of 8.0 MB/sec easily bests that of its predecessor, the Fireball Plus LM
. When compared to the competition, however, the AS lags. Western Digital's Caviar WD400BB
leads the Fireball by about 5%. The margin is greater in the High-End WinMark, where the category-leading WD trumps the Quantum by more than 12%.