Product comparison · 2 internal hard drives

Seagate 640GB 2.5 vs Seagate IronWolf Pro ST6000NE0021 internal hard drive

18specifications compared
16differ
2identical
14known for one product only

Key differences

HDD capacity
- 640GB 2.5:640 GB
- IronWolf Pro ST6000NE0021 internal hard drive:6 TB
HDD speed
- 640GB 2.5:5400 RPM
- IronWolf Pro ST6000NE0021 internal hard drive:7200 RPM
HDD size
- 640GB 2.5:2.5"
- IronWolf Pro ST6000NE0021 internal hard drive:3.5"
Interface
- 640GB 2.5:Serial ATA II
- IronWolf Pro ST6000NE0021 internal hard drive:Serial ATA III
Storage drive buffer size
- 640GB 2.5:8 MB
- IronWolf Pro ST6000NE0021 internal hard drive:256 MB
HDD interface transfer rate
- 640GB 2.5:3 Gbit/s
- IronWolf Pro ST6000NE0021 internal hard drive:6 Gbit/s
Average latency
- 640GB 2.5:5.5 ms
- IronWolf Pro ST6000NE0021 internal hard drive:4.16 ms
Power consumption (idle)
- 640GB 2.5:0.68 W
- IronWolf Pro ST6000NE0021 internal hard drive:7.6 W

Side by side

Differences highlightedShow differences only

Comparison of 640GB 2.5, ST6000NE0021
32 specifications	A Seagate 640GB 2.5 View product	B Seagate IronWolf Pro ST6000NE0021 internal hard drive Model ST6000NE0021 View product
Features7 differ
HDD capacityDiffers	640 GB	6 TB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA II	Serial ATA III
Type	HDD	HDD
Storage drive buffer sizeDiffers	8 MB	256 MB
HDD interface transfer rateDiffers	3 Gbit/s	6 Gbit/s
Average latencyDiffers	5.5 ms	4.16 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1200000 h
Component forKnown for one	Laptop	Unknown — not stated by the source
Read seek timeKnown for one	11 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	9 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.6 W
Power consumption (off)Known for one	Unknown — not stated by the source	0.6 W
Power consumption (idle)Differs	0.68 W	7.6 W
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentKnown for one	Unknown — not stated by the source	2 A
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Non-operating vibrationKnown for one	Unknown — not stated by the source	5 G
Operating shockDiffers	350 G	70 G
Non-operating shockDiffers	800 G	250 G
Packaging contentidentical
Storage drive adapter includedKnown for one	Unknown — not stated by the source	No
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.8 mm
DepthDiffers	100.3 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	100 g	780 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Other featuresidentical
Product colourKnown for one	Black	Unknown — not stated by the source
InternalKnown for one	Yes	Unknown — not stated by the source
Acoustic pressure emissionsKnown for one	26 dB	Unknown — not stated by the source

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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