Interface: ST6000VN0041 lists SATA 6 Gb/s; WD6004FRYZ lists SATA 6Gb/s.
Cache (MB): ST6000VN0041 lists 128; WD6004FRYZ lists 256.
Manufacturer limited warranty: ST6000VN0041 lists 3 years (eligible new drives); WD6004FRYZ lists 5 years (eligible new drives).

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 ST6000VN0041 and WD6004FRYZ
Specification	ST6000VN0041	WD6004FRYZ
Manufacturer	Seagate	Western Digital
Product family	IronWolf	WD Gold
Model number	ST6000VN0041	WD6004FRYZ
Capacity (TB)	6	6
Interface	SATA 6 Gb/s	SATA 6Gb/s
Cache (MB)	128	256
Form factor	3.5-inch	3.5-inch
Rotational vibration sensors	Yes	Not recorded
Manufacturer limited warranty	3 years (eligible new drives)	5 years (eligible new drives)
RPM	Not recorded	7200
Recording	Not recorded	CMR
Workload rating (TB/year)	Not recorded	550
Logical sector size (bytes)	Not recorded	512
Physical sector size (bytes)	Not recorded	4096
Sustained transfer (up to MB/s)	Not recorded	267

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.

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

Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.