Product comparison · 2 internal hard drives

Seagate 5400.3 SATA 40GB vs Seagate Barracuda ES.2 Serial ATA 250GB

23specifications compared
18differ
5identical
18known for one product only

Key differences

HDD capacity
- 5400.3 SATA 40GB:40 GB
- Barracuda ES.2 Serial ATA 250GB:250 GB
HDD speed
- 5400.3 SATA 40GB:5400 RPM
- Barracuda ES.2 Serial ATA 250GB:7200 RPM
HDD size
- 5400.3 SATA 40GB:2.5"
- Barracuda ES.2 Serial ATA 250GB:3.5"
Interface
- 5400.3 SATA 40GB:Serial ATA
- Barracuda ES.2 Serial ATA 250GB:Serial ATA II
Storage drive buffer size
- 5400.3 SATA 40GB:8 MB
- Barracuda ES.2 Serial ATA 250GB:32 MB
Read seek time
- 5400.3 SATA 40GB:11 ms
- Barracuda ES.2 Serial ATA 250GB:8.5 ms
Write seek time
- 5400.3 SATA 40GB:13 ms
- Barracuda ES.2 Serial ATA 250GB:9.5 ms
Track to track seek time
- 5400.3 SATA 40GB:1.5 ms
- Barracuda ES.2 Serial ATA 250GB:1 ms

Side by side

Differences highlightedShow differences only

Comparison of 5400.3 SATA 40GB, Barracuda ES.2 Serial ATA 250GB
41 specifications	A Seagate 5400.3 SATA 40GB View product	B Seagate Barracuda ES.2 Serial ATA 250GB View product
Features9 differ
HDD capacityDiffers	40 GB	250 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Type	HDD	HDD
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	32 MB
HDD number of headsKnown for one	1	Unknown — not stated by the source
Read seek timeDiffers	11 ms	8.5 ms
Write seek timeDiffers	13 ms	9.5 ms
Full stroke seek timeKnown for one	22 ms	Unknown — not stated by the source
Track to track seek timeDiffers	1.5 ms	1 ms
Average latencyDiffers	5.6 ms	4.16 ms
Bytes per sector	512	512
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Power2 differ
Power consumption (standby)Known for one	0.2 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	0.2 W	Unknown — not stated by the source
Power consumption (idle)Differs	0.6 W	8 W
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 currentKnown for one	1 A	Unknown — not stated by the source
Power consumption (typical)Known for one	Unknown — not stated by the source	10.6 W
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 vibrationKnown for one	1 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	5 G	Unknown — not stated by the source
Operating altitudeKnown for one	-304.8 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-304.8 - 12192 m	Unknown — not stated by the source
Operating shockDiffers	350 G	63 G
Non-operating shockDiffers	900 G	300 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	96 g	518 g
Packaging dataidentical
Quantity per pack	1 pc(s)	1 pc(s)
Other featuresidentical
Drive ready timeKnown for one	3 s	Unknown — not stated by the source
Windows operating systems supported	Yes	Yes
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	3.25 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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