Product comparison · 2 internal hard drives

Seagate 146.8GB 3.5 vs Seagate ST91000640SS-40PK internal hard drive

14specifications compared
11differ
3identical
21known for one product only

Key differences

HDD capacity
- 146.8GB 3.5:146.8 GB
- ST91000640SS-40PK internal hard drive:1 TB
HDD speed
- 146.8GB 3.5:15000 RPM
- ST91000640SS-40PK internal hard drive:7200 RPM
HDD size
- 146.8GB 3.5:3.5"
- ST91000640SS-40PK internal hard drive:2.5"
Storage drive buffer size
- 146.8GB 3.5:16 MB
- ST91000640SS-40PK internal hard drive:64 MB
Average latency
- 146.8GB 3.5:2 ms
- ST91000640SS-40PK internal hard drive:4.16 ms
Operating voltage
- 146.8GB 3.5:5 / 12 V
- ST91000640SS-40PK internal hard drive:5 V
Operating temperature (T-T)
- 146.8GB 3.5:0 - 60 °C
- ST91000640SS-40PK internal hard drive:5 - 60 °C
Width
- 146.8GB 3.5:101.6 mm
- ST91000640SS-40PK internal hard drive:70.1 mm

Side by side

Differences highlightedShow differences only

Comparison of 146.8GB 3.5, ST91000640SS-40PK
35 specifications	A Seagate 146.8GB 3.5 View product	B Seagate ST91000640SS-40PK internal hard drive Model ST91000640SS-40PK View product
Features5 differ
HDD capacityDiffers	146.8 GB	1 TB
HDD speedDiffers	15000 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	SAS	SAS
Type	HDD	HDD
Component for	Server/workstation	Server/workstation
Storage drive buffer sizeDiffers	16 MB	64 MB
HDD interface transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
Read seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	9.5 ms
Average latencyDiffers	2 ms	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	6.4 W
Power consumption (idle)Known for one	Unknown — not stated by the source	3.85 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 60 °C
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	3 G
Operating shockKnown for one	Unknown — not stated by the source	70 G
Non-operating shockKnown for one	Unknown — not stated by the source	400 G
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating altitudeKnown for one	-60.96 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-60.96 - 12192 m	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.6 mm	70.1 mm
DepthDiffers	46 mm	100.5 mm
HeightDiffers	25.4 mm	15 mm
WeightDiffers	771 g	200 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	40 pc(s)
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717050	Unknown — not stated by the source
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Acoustic pressure emissionsKnown for one	32 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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