Product comparison · 2 internal hard drives

Seagate 146.3GB 3.5 vs Seagate 320GB 3.5

18specifications compared
12differ
6identical
21known for one product only

Key differences

HDD capacity
- 146.3GB 3.5:146.3 GB
- 320GB 3.5:320 GB
HDD speed
- 146.3GB 3.5:15000 RPM
- 320GB 3.5:7200 RPM
Interface
- 146.3GB 3.5:SAS
- 320GB 3.5:Serial ATA II
HDD number of heads
- 146.3GB 3.5:3
- 320GB 3.5:4
Average latency
- 146.3GB 3.5:2 ms
- 320GB 3.5:4.16 ms
Power consumption (idle)
- 146.3GB 3.5:9.6 W
- 320GB 3.5:9.3 W
Operating temperature (T-T)
- 146.3GB 3.5:5 - 55 °C
- 320GB 3.5:0 - 60 °C
Operating shock
- 146.3GB 3.5:60 G
- 320GB 3.5:68 G

Side by side

Differences highlightedShow differences only

Comparison of 146.3GB 3.5, 320GB 3.5
39 specifications	A Seagate 146.3GB 3.5 View product	B Seagate 320GB 3.5 View product
Features5 differ
HDD capacityDiffers	146.3 GB	320 GB
HDD speedDiffers	15000 RPM	7200 RPM
InterfaceDiffers	SAS	Serial ATA II
HDD number of headsDiffers	3	4
Track to track seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Average latencyDiffers	2 ms	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	700000 h
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Read seek timeKnown for one	3.4 ms	Unknown — not stated by the source
Write seek timeKnown for one	3.9 ms	Unknown — not stated by the source
Power1 differ
Power consumption (idle)Differs	9.6 W	9.3 W
Power consumption (read)Known for one	Unknown — not stated by the source	13 W
Power consumption (write)Known for one	Unknown — not stated by the source	13 W
Start-up currentKnown for one	Unknown — not stated by the source	2.8 A
Power consumption (typical)Known for one	14.4 W	Unknown — not stated by the source
Operational conditions3 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 3048 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 12192 m
Operating shockDiffers	60 G	68 G
Non-operating shockDiffers	250 G	350 G
Operating vibrationKnown for one	1 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	2 G	Unknown — not stated by the source
Weight & dimensions3 differ
DepthDiffers	146.1 mm	147 mm
HeightDiffers	25.4 mm	26.1 mm
WeightDiffers	674 g	580 g
Other featuresidentical
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
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	2.7 dB
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717050	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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