Product comparison · 2 internal hard drives

Seagate 160GB 2.5" SATA vs Seagate Barracuda ES 250GB SATA-II

19specifications compared
17differ
2identical
20known for one product only

Key differences

HDD capacity
- 160GB 2.5" SATA:160 GB
- Barracuda ES 250GB SATA-II:250.1 GB
HDD speed
- 160GB 2.5" SATA:5400 RPM
- Barracuda ES 250GB SATA-II:7200 RPM
HDD size
- 160GB 2.5" SATA:2.5"
- Barracuda ES 250GB SATA-II:3.5"
Interface
- 160GB 2.5" SATA:Serial ATA
- Barracuda ES 250GB SATA-II:Serial ATA II
HDD number of heads
- 160GB 2.5" SATA:4
- Barracuda ES 250GB SATA-II:3
Read seek time
- 160GB 2.5" SATA:12.5 ms
- Barracuda ES 250GB SATA-II:8.5 ms
Write seek time
- 160GB 2.5" SATA:13 ms
- Barracuda ES 250GB SATA-II:9.5 ms
Average latency
- 160GB 2.5" SATA:5.6 ms
- Barracuda ES 250GB SATA-II:4.16 ms

Side by side

Differences highlightedShow differences only

Comparison of 160GB 2.5" SATA, Barracuda ES 250GB SATA-II
39 specifications	A Seagate 160GB 2.5" SATA View product	B Seagate Barracuda ES 250GB SATA-II View product
Features8 differ
HDD capacityDiffers	160 GB	250.1 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
TypeKnown for one	HDD	Unknown — not stated by the source
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer size	8 MB	8 MB
HDD number of headsDiffers	4	3
Read seek timeDiffers	12.5 ms	8.5 ms
Write seek timeDiffers	13 ms	9.5 ms
Average latencyDiffers	5.6 ms	4.16 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power2 differ
Power consumption (standby)Known for one	0.2 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.6 W	Unknown — not stated by the source
Power consumption (read)Known for one	1.9 W	Unknown — not stated by the source
Power consumption (write)Known for one	1.8 W	Unknown — not stated by the source
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentDiffers	1 A	2.8 A
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
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 altitudeKnown for one	-60.96 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-60.96 - 12192 m	Unknown — not stated by the source
Operating shockDiffers	350 G	63 G
Non-operating shockDiffers	900 G	225 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.5 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	100 g	580 g
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
HDD transfer rateKnown for one	Unknown — not stated by the source	1030 Mbit/s
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.6 x 146.99 x 26.1 mm
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes
USB poweredKnown for one	Unknown — not stated by the source	No
Compatible productsKnown for one	Unknown — not stated by the source	PCs

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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