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Seagate ST21G8TM9S25T

Price and performance details for the Seagate ST21G8TM9S25T 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 ST21G8TM9S25T

Drive Size:  119.2 GB

Other names:  ST21G8TM9S25 T

Drive First Benchmarked: 2022-02-22

Drive Rating/$Price: NA

Overall Rank:  10294

Last Price Change:  NA

Average Drive Rating
3337
Samples: 16

Disk Test Suite Average Results for Seagate ST21G8TM9S25T

Sequential Read529 MBytes/Sec
Sequential Write242 MBytes/Sec
Random Seek Read Write (IOPS 32KQD20)180 MBytes/Sec
IOPS 4KQD136 MBytes/Sec
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Drive Rating Relative to Top 10 Common Drives
As of 14th of February 2026 - Higher results represent better performance
Drive Average Disk Rating
Seagate ST21G8TM9S25T
3,337
Seagate ST2000DM008
2,311
Seagate ST1000DM010
1,378
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
Last 5 Baselines for Seagate ST21G8TM9S25T
Most recent listed first
Baseline Disk Rating
BL2555798 - Apr 15 2025
3106
BL2555612 - Apr 15 2025
2931
BL2553256 - Apr 14 2025
2716
BL1813514 - May 08 2023
2977
BL1808809 - May 02 2023
3103