Ok, tested the WD 320GB drive as well with CrystalDiskMark 3.0 as well; here is the results:
WD Scorpio Black 320 GB
[]CrystalDiskMark 2.2 (5 passes,
1000MB, NTFS drive)
Sequential: 62.03MBps READ | 60.10MBps WRITE
512k: 27.79MBps READ | 44.25MBps WRITE
4k: 0.627MBps READ | 1.356MBps WRITE
4k QD32: 1.235MBps READ | 1.406MBps WRITE
WD Scorpio Black 320 GB
[]CrystalDiskMark 2.2 (5 passes,
50mb, NTFS drive)
Sequential: 82.28MBps READ | 78.19MBps WRITE
512k: 41.86MBps READ | 63.88MBps WRITE
4k: 0.793MBps READ | 1.638MBps WRITE
4k QD32: 1.136MBps READ | 1.818MBps WRITE
Hmmm you got way better numbers on the WD-5000AADS drive compared to WD Scorpia Black that I use. Guess that it could be the different version; but then again that huge different is kind of odd. Actually the numbers seem too good; would you mind re-run the test with version 3.0 of
CrystalDiskMark?