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

Show differences only

Manufacturer specifications for ST14000NM002G and ST14000NM012G
Specification	ST14000NM002G	ST14000NM012G
Manufacturer	Seagate	Seagate
Product family	Exos X16	Exos X16
Model number	ST14000NM002G	ST14000NM012G
Capacity (TB)	14	14
RPM	7200	7200
Interface	SAS 12 Gb/s	SAS 12 Gb/s
Cache (MB)	256	256
Form factor	3.5-inch	3.5-inch
Average idle power (W)	5	5
Power-on hours per year	8760	8760
Manufacturer limited warranty	5 years (eligible new drives)	5 years (eligible new drives)
Sustained transfer (up to MB/s)	249	249

Compatibility and buying checks

A SAS drive requires a compatible SAS controller or backplane. A normal motherboard SATA port cannot operate a SAS drive.
Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.

Manufacturer sources

ST14000NM002G

Seagate Exos X16 manufacturer specifications ↗ · pages 2

Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.

ST14000NM012G

Seagate Exos X16 manufacturer specifications ↗ · pages 2

Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.

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