Product comparison · 2 internal hard drives

Seagate 146GB SAS vs Seagate 1TBGB SATA, 7200rpm

24specifications compared
19differ
5identical
7known for one product only

Key differences

HDD capacity
- 146GB SAS:146 GB
- 1TBGB SATA, 7200rpm:1 TB
HDD speed
- 146GB SAS:15000 RPM
- 1TBGB SATA, 7200rpm:7200 RPM
HDD size
- 146GB SAS:2.5"
- 1TBGB SATA, 7200rpm:3.5"
Interface
- 146GB SAS:SAS
- 1TBGB SATA, 7200rpm:Serial ATA
Read seek time
- 146GB SAS:2.7 ms
- 1TBGB SATA, 7200rpm:8.5 ms
Write seek time
- 146GB SAS:3.1 ms
- 1TBGB SATA, 7200rpm:9.5 ms
Average latency
- 146GB SAS:2 ms
- 1TBGB SATA, 7200rpm:4.16 ms
Mean time between failures (MTBF)
- 146GB SAS:2000000 h
- 1TBGB SATA, 7200rpm:1200000 h

Side by side

Differences highlightedShow differences only

Comparison of 146GB SAS, 1TBGB SATA, 7200rpm
31 specifications	A Seagate 146GB SAS View product	B Seagate 1TBGB SATA, 7200rpm View product
Features8 differ
HDD capacityDiffers	146 GB	1 TB
HDD speedDiffers	15000 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA
Storage drive buffer size	64 MB	64 MB
Read seek timeDiffers	2.7 ms	8.5 ms
Write seek timeDiffers	3.1 ms	9.5 ms
Average latencyDiffers	2 ms	4.16 ms
Mean time between failures (MTBF)Differs	2000000 h	1200000 h
Component forKnown for one	Server/workstation	Unknown — not stated by the source
HDD number of headsKnown for one	2	Unknown — not stated by the source
Power3 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	6.40 W
Power consumption (idle)Differs	3.84 W	4.42 W
Power consumption (read)Known for one	Unknown — not stated by the source	7.42 W
Power consumption (write)Known for one	Unknown — not stated by the source	6.21 W
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentDiffers	0.86 A	1.88 A
Operational conditions2 differ
Operating temperature (T-T)	5 - 55 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating vibrationKnown for one	Unknown — not stated by the source	0.25 Gs
Non-operating vibrationKnown for one	Unknown — not stated by the source	4.9 Gs
Operating shockDiffers	60 G	70 G
Non-operating shockDiffers	300 G	350 G
Weight & dimensions4 differ
WidthDiffers	70.1 mm	101.8 mm
DepthDiffers	100.5 mm	147 mm
HeightDiffers	15 mm	26.1 mm
WeightDiffers	193 g	610 g
Other features2 differ
Data transfer rate	6 Gbit/s	6 Gbit/s
Internal	Yes	Yes
Sustained data rateDiffers	202 MB/s	150 MB/s
Acoustic pressure emissionsDiffers	3.35 dB	2.7 dB

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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