Product comparison · 2 internal hard drives

Seagate 250GB 2.5" SATA II vs Seagate Barracuda ES.2 1000GB 20pk

9specifications compared
6differ
3identical
20known for one product only

Key differences

HDD capacity
- 250GB 2.5" SATA II:250 GB
- Barracuda ES.2 1000GB 20pk:1 TB
Interface
- 250GB 2.5" SATA II:Serial ATA II
- Barracuda ES.2 1000GB 20pk:SAS
Storage drive buffer size
- 250GB 2.5" SATA II:8 MB
- Barracuda ES.2 1000GB 20pk:16 MB
Start-up current
- 250GB 2.5" SATA II:2 A
- Barracuda ES.2 1000GB 20pk:3 A
Height
- 250GB 2.5" SATA II:20.2 mm
- Barracuda ES.2 1000GB 20pk:26.1 mm
Weight
- 250GB 2.5" SATA II:382 g
- Barracuda ES.2 1000GB 20pk:530 g

Side by side

Differences highlightedShow differences only

Comparison of 250GB 2.5" SATA II, Barracuda ES.2 1000GB 20pk
29 specifications	A Seagate 250GB 2.5" SATA II View product	B Seagate Barracuda ES.2 1000GB 20pk View product
Features3 differ
HDD capacityDiffers	250 GB	1 TB
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA II	SAS
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
HDD interface transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
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 latencyKnown for one	Unknown — not stated by the source	4.16 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1200000 h
Power1 differ
Power consumption (standby)Known for one	1 W	Unknown — not stated by the source
Power consumption (idle)Known for one	5.25 W	Unknown — not stated by the source
Operating voltageKnown for one	5 / 12 V	Unknown — not stated by the source
Start-up currentDiffers	2 A	3 A
Operational conditionsidentical
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 vibrationKnown for one	0.5 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	5 G	Unknown — not stated by the source
Operating shockKnown for one	63 G	Unknown — not stated by the source
Non-operating shockKnown for one	250 G	Unknown — not stated by the source
Weight & dimensions2 differ
HeightDiffers	20.2 mm	26.1 mm
WeightDiffers	382 g	530 g
Other featuresidentical
InternalKnown for one	Unknown — not stated by the source	Yes
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	0.27 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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