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Atlas 10k II vs. Cheetah 36LP


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Quantum's Atlas 10k II vs. Seagate's Cheetah 36LP: A Grudge Match!
  July 16, 2000 Author: Eugene Ra  

WB99/Win2k Low-Level Measurements

 Testbed II Low-Level Measurements Details... 
Windows 2000 Professional using NTFS
Quantum Atlas 10k II 1st Sample - 7.8|
Quantum Atlas 10k II 2nd Sample - 7.9|
Seagate Cheetah 36LP 1st Sample - 9.0|
Seagate Cheetah 36LP 2nd Sample - 9.0|
Windows 2000 Professional using NTFS
Quantum Atlas 10k II 2nd Sample - 41467|
Quantum Atlas 10k II 1st Sample - 40167|
Seagate Cheetah 36LP 2nd Sample - 36167|
Seagate Cheetah 36LP 1st Sample - 36133|
Windows 2000 Professional using NTFS
Quantum Atlas 10k II 1st Sample - 25000|
Quantum Atlas 10k II 2nd Sample - 25000|
Seagate Cheetah 36LP 1st Sample - 24100|
Seagate Cheetah 36LP 2nd Sample - 24100|

Click here to examine STR graph for these drives

The access times exhibited by both revised drives fell in line with the measurements gleaned from the original units. The Cheetah 36LP's seek times hovered right around 9.0 milliseconds. Though the seek time in the 2nd sample of our Atlas 10k II reads 7.9 milliseconds vs the 7.8 turned in by the original, the difference is a cosmetic one presented by the peculiarities of rounding out to just two significant digits. The measured times hovered around 7.85 milliseconds, with the original Atlas' figure coming in just a hair below and thus winning itself the insignificant 7.8ms figure. In any case, however, the Altas 10k II's access time remains extremely impressive, clocking in at over a full millisecond below that of the Cheetah 36LP.

Due to its increased areal density, the Quantum sports an advantage over the Seagate when it comes to sequential transfer rates. Don't be fooled by the Atlas' impressive 40 MB+ figure... the drive maintains this speed only in its relatively small outer zones. The Seagate, on the other hand, features a more "graceful" decay. Though the Atlas sports a significant outer zone lead, the difference becomes negligible as inner zones are reached. Please examine the STR graphs presented above for more detail.

 WinMarks...


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