Product comparison · 2 internal hard drives

Lenovo 1.2TB, 2.5", SAS vs Seagate 3.5 HDD (Helium)

9specifications compared
6differ
3identical
16known for one product only

Key differences

HDD capacity
- 1.2TB, 2.5", SAS:1.2 TB
- 3.5 HDD (Helium):12 TB
HDD speed
- 1.2TB, 2.5", SAS:10000 RPM
- 3.5 HDD (Helium):7200 RPM
HDD size
- 1.2TB, 2.5", SAS:2.5"
- 3.5 HDD (Helium):3.5"
Interface
- 1.2TB, 2.5", SAS:SAS
- 3.5 HDD (Helium):Serial ATA III
HDD interface transfer rate
- 1.2TB, 2.5", SAS:12 Gbit/s
- 3.5 HDD (Helium):6 Gbit/s
Operating voltage
- 1.2TB, 2.5", SAS:5 V
- 3.5 HDD (Helium):5 / 12 V

Side by side

Differences highlightedShow differences only

Comparison of 1.2TB, 2.5", SAS, 3.5 HDD (Helium)
25 specifications	A Lenovo 1.2TB, 2.5", SAS View product	B Seagate 3.5 HDD (Helium)View product
Features5 differ
HDD capacityDiffers	1.2 TB	12 TB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA III
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	256 MB
HDD interface transfer rateDiffers	12 Gbit/s	6 Gbit/s
HDD sustained transfer rateKnown for one	Unknown — not stated by the source	261 MiB/s
Average latencyKnown for one	Unknown — not stated by the source	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	2500000 h
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	7.8 W
Power consumption (idle)Known for one	Unknown — not stated by the source	5 W
Operating voltageDiffers	5 V	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 60 °C
Non-operating vibrationKnown for one	Unknown — not stated by the source	2.27 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101.6 mm
DepthKnown for one	Unknown — not stated by the source	147 mm
HeightKnown for one	Unknown — not stated by the source	26.1 mm
WeightKnown for one	Unknown — not stated by the source	650 g
Logistics dataidentical
Master (outer) cases per palletKnown for one	Unknown — not stated by the source	40 pc(s)
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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