Product comparison · 2 internal hard drives

Samsung 40GB Serial ATA II HDD, 20-PK vs Seagate Barracuda 7200.9, 500GB

15specifications compared
4differ
11identical
16known for one product only

Key differences

The Seagate Barracuda 7200.9, 500GB has 460 GB more HDD capacity than the Samsung 40GB Serial ATA II HDD, 20-PK (500 GB vs 40 GB). The Seagate Barracuda 7200.9, 500GB has 8 MB more storage drive buffer size than the Samsung 40GB Serial ATA II HDD, 20-PK (16 MB vs 8 MB). The Samsung 40GB Serial ATA II HDD, 20-PK has 0.01 ms more average latency than the Seagate Barracuda 7200.9, 500GB (4.17 ms vs 4.16 ms).

HDD capacity
- 40GB Serial ATA II HDD, 20-PK:40 GB
- Barracuda 7200.9, 500GB:500 GB
Storage drive buffer size
- 40GB Serial ATA II HDD, 20-PK:8 MB
- Barracuda 7200.9, 500GB:16 MB
Average latency
- 40GB Serial ATA II HDD, 20-PK:4.17 ms
- Barracuda 7200.9, 500GB:4.16 ms
Power consumption (PowerSave)
- 40GB Serial ATA II HDD, 20-PK:0.7 W
- Barracuda 7200.9, 500GB:7.4 W

Side by side

Differences highlightedShow differences only

Comparison of 40GB Serial ATA II HDD, 20-PK, Barracuda 7200.9, 500GB
31 specifications	A Samsung 40GB Serial ATA II HDD, 20-PK View product	B Seagate Barracuda 7200.9, 500GB View product
Features3 differ
HDD capacityDiffers	40 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA II	Serial ATA II
Storage drive buffer sizeDiffers	8 MB	16 MB
Full stroke seek timeKnown for one	18 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	0.8 ms	Unknown — not stated by the source
Average seek timeKnown for one	8.9 ms	Unknown — not stated by the source
Average latencyDiffers	4.17 ms	4.16 ms
Bytes per sector	512	512
Mean time between failures (MTBF)Known for one	500000 h	Unknown — not stated by the source
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Power1 differ
Power consumption (typical)Known for one	8 W	Unknown — not stated by the source
Power consumption (standby)Known for one	0.7 W	Unknown — not stated by the source
Power consumption (PowerSave)Differs	0.7 W	7.4 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)	0 - 60 °C	0 - 60 °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
Non-operating altitudeKnown for one	12000	Unknown — not stated by the source
Operating shock	63 G	63 G
Non-operating shock	350 G	350 G
Other featuresidentical
Special featuresKnown for one	RoHS NoiseGuard SilentSeek	Unknown — not stated by the source
Drive device, transfer rate	300 MB/s	300 MB/s
Internal	Yes	Yes
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	3.7 dB
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101 mm
DepthKnown for one	Unknown — not stated by the source	146 mm
HeightKnown for one	Unknown — not stated by the source	26 mm
WeightKnown for one	Unknown — not stated by the source	690 g

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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