Drive comparison
ST20000VE003 vs ST20000VE004
Seagate SkyHawk AI 20TB and Seagate SkyHawk AI 20TB, compared using published manufacturer specifications.
Seagate
SkyHawk AI 20TB
ST20000VE003
SATA 6 Gb/s · 3.5-inch
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SkyHawk AI 20TB
ST20000VE004
SATA 6 Gb/s · 3.5-inch
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What differs between these models?
The recorded specifications do not establish a performance advantage for either model. Compare compatibility, the exact offer and the manufacturer documents below.
A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.
Specifications side by side
| Specification | ST20000VE003 | ST20000VE004 |
|---|---|---|
| Manufacturer | Seagate | Seagate |
| Product family | SkyHawk AI | SkyHawk AI |
| Model number | ST20000VE003 | ST20000VE004 |
| Capacity (TB) | 20 | 20 |
| Interface | SATA 6 Gb/s | SATA 6 Gb/s |
| Recording | CMR | CMR |
| Cache (MB) | 512 | 512 |
| Form factor | 3.5-inch | 3.5-inch |
| Load/unload cycles | 600000 | 600000 |
| Power-on hours per year | 8760 | 8760 |
| Workload rating (TB/year) | 550 | 550 |
| Rotational vibration sensors | Yes | Yes |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
Compatibility and buying checks
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
ST20000VE003
Seagate SkyHawk AI manufacturer specifications ↗ · pages 2
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
ST20000VE004
Seagate SkyHawk AI manufacturer specifications ↗ · pages 2
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.