When it comes to the high-level Business and High-End Disk Winmarks, the Ultrastar 36LZX falls somewhere in between the Cheetah 18XL
and the Atlas 10k II
. The IBM manages to slide by the Seagate by margins of 3% and 5% respectively in the Business and High-End Winmarks. Big Blue's drive has no hope of catching Quantum's speedster, however... the Ultrastar trails the Atlas 10k II by 12% in the Business Disk Winmark
and a whopping 22% in the High-End
Thus, if WinBench 99 is your most trusted measure of disk speed, the Atlas 10k II should remain your undisputed drive of choice. IBM's drive fails to displace the 10k II off its lofty perch (for that matter, the 15K RPM Cheetah X15 fails to do so too). IOMeter, however, will give us a better picture of relative disk performance. Let's investigate.