Product comparison · 2 internal hard drives

Samsung 20GB HDD vs Seagate 73.4GB 2.5" SAS

18specifications compared
15differ
3identical
12known for one product only

Key differences

HDD capacity
- 20GB HDD:20 GB
- 73.4GB 2.5" SAS:73.4 GB
HDD speed
- 20GB HDD:4200 RPM
- 73.4GB 2.5" SAS:10000 RPM
HDD size
- 20GB HDD:1.8"
- 73.4GB 2.5" SAS:2.5"
Interface
- 20GB HDD:Ultra-ATA/66
- 73.4GB 2.5" SAS:SAS
Storage drive buffer size
- 20GB HDD:2 MB
- 73.4GB 2.5" SAS:16 MB
Average latency
- 20GB HDD:7.14 ms
- 73.4GB 2.5" SAS:3 ms
Operating voltage
- 20GB HDD:3.3 V
- 73.4GB 2.5" SAS:5 V
Operating temperature (T-T)
- 20GB HDD:5 - 60 °C
- 73.4GB 2.5" SAS:0 - 60 °C

Side by side

Differences highlightedShow differences only

Comparison of 20GB HDD, 73.4GB 2.5" SAS
30 specifications	A Samsung 20GB HDD View product	B Seagate 73.4GB 2.5" SAS View product
Features6 differ
HDD capacityDiffers	20 GB	73.4 GB
HDD speedDiffers	4200 RPM	10000 RPM
HDD sizeDiffers	1.8"	2.5"
InterfaceDiffers	Ultra-ATA/66	SAS
Storage drive buffer sizeDiffers	2 MB	16 MB
Full stroke seek timeKnown for one	26 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	3 ms	Unknown — not stated by the source
Average latencyDiffers	7.14 ms	3 ms
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Server/workstation
HDD number of headsKnown for one	Unknown — not stated by the source	2
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1600000 h
Power1 differ
Power consumption (typical)Known for one	0.65 W	Unknown — not stated by the source
Power consumption (standby)Known for one	0.3 W	Unknown — not stated by the source
Operating voltageDiffers	3.3 V	5 V
Operational conditions4 differ
Operating temperature (T-T)Differs	5 - 60 °C	0 - 60 °C
Storage temperature (T-T)Differs	-20 - 85 °C	-40 - 70 °C
Operating altitudeDiffers	-300 - 3000 m	-60.96 - 3048 m
Non-operating altitudeDiffers	-400 - 15000 m	-60.96 - 12192 m
Weight & dimensions4 differ
WidthDiffers	54 mm	100.5 mm
DepthDiffers	71 mm	70 mm
HeightDiffers	5 mm	14.8 mm
WeightDiffers	48 g	227 g
Other featuresidentical
Drive ready timeKnown for one	2 s	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux 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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