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Seagate ST9500420AS

Price and performance details for the Seagate ST9500420AS can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the Hard Drive compared to the 10 other common Hard Drives in terms of PassMark Disk Rating.
  • The 2nd graph shows the value for money, in terms of the Disk Rating per dollar.

Seagate ST9500420AS

Drive Size:  465.8 GB

Other names:  ST9500420AS, ST950042 0AS SCSI Disk Device, Seagate ST9500420AS SCSI Disk Device

Drive First Benchmarked: 2009-02-28

Drive Rating/$Price: 17.54

Overall Rank:  16744

Last Price Change:  $29.99 USD (2026-01-31)

Average Drive Rating
526
Samples: 192

Disk Test Suite Average Results for Seagate ST9500420AS

Sequential Read76 MBytes/Sec
Sequential Write74 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)6 MBytes/Sec
IOPS 4KQD11 MBytes/Sec
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Pricing History


Drive Rating Relative to Top 10 Common Drives
As of 15th of February 2026 - Higher results represent better performance
Drive Average Disk Rating
Seagate ST2000DM008
2,311
Seagate ST1000DM010
1,377
Seagate Barracuda 2TB Hard Drive
1,317
TOSHIBA DT01ACA100
1,254
WDC WD10EZEX
1,216
Seagate ST1000DM003
1,176
TOSHIBA DT01ACA050
1,143
TOSHIBA MQ04ABF100
1,060
WDC WD10SPZX
901
Seagate ST9500420AS
526
Last 5 Baselines for Seagate ST9500420AS
Most recent listed first
Baseline Disk Rating
BL3267873 - Feb 06 2026
628
BL3267796 - Feb 06 2026
633
BL3224247 - Jan 18 2026
183
BL3108015 - Dec 05 2025
521
BL3107989 - Dec 05 2025
525