Product comparison · 2 internal hard drives

Seagate Desktop SSHD ST4000DX001-20PK internal hard drive vs Seagate Desktop HDD ST500DM002-25PK 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 ST500DM002-25PK 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 ST500DM002-25PK 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 ST500DM002-25PK internal hard drive (8 vs 2). HDD capacity: 4 TB on the Seagate Desktop SSHD ST4000DX001-20PK internal hard drive, 500 GB on the Seagate Desktop HDD ST500DM002-25PK internal hard drive. Type: Hybrid-HDD on the Seagate Desktop SSHD ST4000DX001-20PK internal hard drive, HDD on the Seagate Desktop HDD ST500DM002-25PK internal hard drive.

HDD capacity
- Desktop SSHD ST4000DX001-20PK internal hard drive:4 TB
- Desktop HDD ST500DM002-25PK internal hard drive:500 GB
Type
- Desktop SSHD ST4000DX001-20PK internal hard drive:Hybrid-HDD
- Desktop HDD ST500DM002-25PK internal hard drive:HDD
Storage drive buffer size
- Desktop SSHD ST4000DX001-20PK internal hard drive:64 MB
- Desktop HDD ST500DM002-25PK internal hard drive:16 MB
HDD number of cylinders
- Desktop SSHD ST4000DX001-20PK internal hard drive:4
- Desktop HDD ST500DM002-25PK internal hard drive:1
HDD number of heads
- Desktop SSHD ST4000DX001-20PK internal hard drive:8
- Desktop HDD ST500DM002-25PK internal hard drive:2
Read seek time
- Desktop SSHD ST4000DX001-20PK internal hard drive:12 ms
- Desktop HDD ST500DM002-25PK internal hard drive:11 ms
Power consumption (typical)
- Desktop SSHD ST4000DX001-20PK internal hard drive:7.5 W
- Desktop HDD ST500DM002-25PK internal hard drive:6.19 W
Power consumption (standby)
- Desktop SSHD ST4000DX001-20PK internal hard drive:0.75 W
- Desktop HDD ST500DM002-25PK internal hard drive:0.63 W

Side by side

Differences highlightedShow differences only

Comparison of ST4000DX001-20PK, ST500DM002-25PK
30 specifications	A Seagate Desktop SSHD ST4000DX001-20PK internal hard drive Model ST4000DX001-20PK View product	B Seagate Desktop HDD ST500DM002-25PK internal hard drive Model ST500DM002-25PK View product
Features6 differ
HDD capacityDiffers	4 TB	500 GB
TypeDiffers	Hybrid-HDD	HDD
Storage drive buffer sizeDiffers	64 MB	16 MB
Hybrid-HDD cache memoryKnown for one	8 GB	Unknown — not stated by the source
HDD number of cylindersDiffers	4	1
HDD number of headsDiffers	8	2
Read seek timeDiffers	12 ms	11 ms
Start/stop cyclesKnown for one	300000	Unknown — not stated by the source
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Power3 differ
Power consumption (typical)Differs	7.5 W	6.19 W
Power consumption (standby)Differs	0.75 W	0.63 W
Power consumption (idle)Differs	6.2 W	4.6 W
Start-up currentKnown for one	Unknown — not stated by the source	2 A
Weight & dimensions2 differ
HeightDiffers	26.1 mm	20 mm
WeightDiffers	610 g	415 g
Packaging data1 differ
Quantity per packDiffers	20 pc(s)	25 pc(s)
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Bundled softwareKnown for one	Unknown — not stated by the source	DiscWizard

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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