Product comparison · 2 internal hard drives

Seagate 1.2TB SAS vs Seagate 8TB SATA

17specifications compared
15differ
2identical
15known for one product only

Key differences

HDD capacity
- 1.2TB SAS:1.2 TB
- 8TB SATA:8 TB
HDD speed
- 1.2TB SAS:10000 RPM
- 8TB SATA:7200 RPM
HDD size
- 1.2TB SAS:2.5"
- 8TB SATA:3.5"
Interface
- 1.2TB SAS:SAS
- 8TB SATA:Serial ATA III
Type
- 1.2TB SAS:Hybrid-HDD
- 8TB SATA:HDD
Storage drive buffer size
- 1.2TB SAS:128 MB
- 8TB SATA:256 MB
HDD interface transfer rate
- 1.2TB SAS:12 Gbit/s
- 8TB SATA:6 Gbit/s
Power consumption (typical)
- 1.2TB SAS:7.25 W
- 8TB SATA:9 W

Side by side

Differences highlightedShow differences only

Comparison of 1.2TB SAS, 8TB SATA
32 specifications	A Seagate 1.2TB SAS View product	B Seagate 8TB SATA View product
Features7 differ
HDD capacityDiffers	1.2 TB	8 TB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA III
TypeDiffers	Hybrid-HDD	HDD
Storage drive buffer sizeDiffers	128 MB	256 MB
Hybrid-HDD cache memoryKnown for one	32 GB	Unknown — not stated by the source
HDD interface transfer rateDiffers	12 Gbit/s	6 Gbit/s
HDD sustained transfer rateKnown for one	241 MiB/s	Unknown — not stated by the source
HDD number of headsKnown for one	6	Unknown — not stated by the source
Average latencyKnown for one	2.9 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Start/stop cyclesKnown for one	Unknown — not stated by the source	300000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1000000 h
Power3 differ
Power consumption (typical)Differs	7.25 W	9 W
Power consumption (idle)Differs	4.26 W	7.6 W
Operating voltageDiffers	5 V	5 / 12 V
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
Start-up currentKnown for one	Unknown — not stated by the source	1.8 A
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 55 °C	5 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating vibrationKnown for one	0.5 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	3 G	Unknown — not stated by the source
Operating shockKnown for one	40 G	Unknown — not stated by the source
Non-operating shockKnown for one	400 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	70.1 mm	101.8 mm
DepthDiffers	15 mm	147 mm
HeightDiffers	100.5 mm	26.1 mm
WeightDiffers	193 g	780 g
Packaging dataidentical
Quantity per pack	1 pc(s)	1 pc(s)
Logistics dataidentical
Master (outer) cases per palletKnown for one	Unknown — not stated by the source	40 pc(s)

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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