Product comparison · 2 internal hard drives

Seagate Desktop HDD ST320DM000-25PK internal hard drive vs Seagate Desktop SSHD ST4000DX001-20PK internal hard drive

22specifications compared
12differ
10identical
8known for one product only

Key differences

The Seagate Desktop SSHD ST4000DX001-20PK internal hard drive has 48 MB more storage drive buffer size than the Seagate Desktop HDD ST320DM000-25PK internal hard drive (64 MB vs 16 MB). The Seagate Desktop SSHD ST4000DX001-20PK internal hard drive has 3 more HDD cylinders than the Seagate Desktop HDD ST320DM000-25PK internal hard drive (4 vs 1). The Seagate Desktop SSHD ST4000DX001-20PK internal hard drive has 6 more HDD heads than the Seagate Desktop HDD ST320DM000-25PK internal hard drive (8 vs 2). HDD capacity: 320 GB on the Seagate Desktop HDD ST320DM000-25PK internal hard drive, 4 TB on the Seagate Desktop SSHD ST4000DX001-20PK internal hard drive. Type: HDD on the Seagate Desktop HDD ST320DM000-25PK internal hard drive, Hybrid-HDD on the Seagate Desktop SSHD ST4000DX001-20PK internal hard drive.

HDD capacity
- Desktop HDD ST320DM000-25PK internal hard drive:320 GB
- Desktop SSHD ST4000DX001-20PK internal hard drive:4 TB
Type
- Desktop HDD ST320DM000-25PK internal hard drive:HDD
- Desktop SSHD ST4000DX001-20PK internal hard drive:Hybrid-HDD
Storage drive buffer size
- Desktop HDD ST320DM000-25PK internal hard drive:16 MB
- Desktop SSHD ST4000DX001-20PK internal hard drive:64 MB
HDD number of cylinders
- Desktop HDD ST320DM000-25PK internal hard drive:1
- Desktop SSHD ST4000DX001-20PK internal hard drive:4
HDD number of heads
- Desktop HDD ST320DM000-25PK internal hard drive:2
- Desktop SSHD ST4000DX001-20PK internal hard drive:8
Read seek time
- Desktop HDD ST320DM000-25PK internal hard drive:11 ms
- Desktop SSHD ST4000DX001-20PK internal hard drive:12 ms
Power consumption (typical)
- Desktop HDD ST320DM000-25PK internal hard drive:6.19 W
- Desktop SSHD ST4000DX001-20PK internal hard drive:7.5 W
Power consumption (standby)
- Desktop HDD ST320DM000-25PK internal hard drive:0.63 W
- Desktop SSHD ST4000DX001-20PK internal hard drive:0.75 W

Side by side

Differences highlightedShow differences only

Comparison of ST320DM000-25PK, ST4000DX001-20PK
30 specifications	A Seagate Desktop HDD ST320DM000-25PK internal hard drive Model ST320DM000-25PK View product	B Seagate Desktop SSHD ST4000DX001-20PK internal hard drive Model ST4000DX001-20PK View product
Features6 differ
HDD capacityDiffers	320 GB	4 TB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
TypeDiffers	HDD	Hybrid-HDD
Storage drive buffer sizeDiffers	16 MB	64 MB
HDD number of cylindersDiffers	1	4
HDD number of headsDiffers	2	8
Read seek timeDiffers	11 ms	12 ms
Hybrid-HDD cache memoryKnown for one	Unknown — not stated by the source	8 GB
Start/stop cyclesKnown for one	Unknown — not stated by the source	300000
Power3 differ
Power consumption (typical)Differs	6.19 W	7.5 W
Power consumption (standby)Differs	0.63 W	0.75 W
Power consumption (idle)Differs	4.6 W	6.2 W
Start-up currentKnown for one	2 A	Unknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Bundled softwareKnown for one	DiscWizard	Unknown — not stated by the source
Weight & dimensions2 differ
HeightDiffers	20 mm	26.1 mm
WeightDiffers	415 g	610 g
Packaging data1 differ
Quantity per packDiffers	25 pc(s)	20 pc(s)
Other featuresidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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