Product comparison · 2 internal hard drives

Samsung 40GB Serial ATA II HDD, 20-PK vs Samsung 80GB Ultra-ATA/133 HDD, 20-Pk

23specifications compared
7differ
16identical
4known for one product only

Key differences

The Samsung 80GB Ultra-ATA/133 HDD, 20-Pk has 40 GB more HDD capacity than the Samsung 40GB Serial ATA II HDD, 20-PK (80 GB vs 40 GB). The Samsung 40GB Serial ATA II HDD, 20-PK has 6 MB more storage drive buffer size than the Samsung 80GB Ultra-ATA/133 HDD, 20-Pk (8 MB vs 2 MB). The Samsung 80GB Ultra-ATA/133 HDD, 20-Pk has 100,000 h more mean time between failures (MTBF) than the Samsung 40GB Serial ATA II HDD, 20-PK (600000 h vs 500000 h). Interface: Serial ATA II on the Samsung 40GB Serial ATA II HDD, 20-PK, Ultra-ATA/133 on the Samsung 80GB Ultra-ATA/133 HDD, 20-Pk.

HDD capacity
- 40GB Serial ATA II HDD, 20-PK:40 GB
- 80GB Ultra-ATA/133 HDD, 20-Pk:80 GB
Interface
- 40GB Serial ATA II HDD, 20-PK:Serial ATA II
- 80GB Ultra-ATA/133 HDD, 20-Pk:Ultra-ATA/133
Storage drive buffer size
- 40GB Serial ATA II HDD, 20-PK:8 MB
- 80GB Ultra-ATA/133 HDD, 20-Pk:2 MB
Mean time between failures (MTBF)
- 40GB Serial ATA II HDD, 20-PK:500000 h
- 80GB Ultra-ATA/133 HDD, 20-Pk:600000 h
Power consumption (typical)
- 40GB Serial ATA II HDD, 20-PK:8 W
- 80GB Ultra-ATA/133 HDD, 20-Pk:7 W
Power consumption (standby)
- 40GB Serial ATA II HDD, 20-PK:0.7 W
- 80GB Ultra-ATA/133 HDD, 20-Pk:1.5 W
Power consumption (PowerSave)
- 40GB Serial ATA II HDD, 20-PK:0.7 W
- 80GB Ultra-ATA/133 HDD, 20-Pk:1.5 W

Side by side

Differences highlightedShow differences only

Comparison of 40GB Serial ATA II HDD, 20-PK, 80GB Ultra-ATA/133 HDD, 20-Pk
27 specifications	A Samsung 40GB Serial ATA II HDD, 20-PK View product	B Samsung 80GB Ultra-ATA/133 HDD, 20-Pk View product
Features4 differ
HDD capacityDiffers	40 GB	80 GB
InterfaceDiffers	Serial ATA II	Ultra-ATA/133
Storage drive buffer sizeDiffers	8 MB	2 MB
Mean time between failures (MTBF)Differs	500000 h	600000 h
Power3 differ
Power consumption (typical)Differs	8 W	7 W
Power consumption (standby)Differs	0.7 W	1.5 W
Power consumption (PowerSave)Differs	0.7 W	1.5 W
Other featuresidentical
Special featuresKnown for one	RoHS NoiseGuard SilentSeek	Unknown — not stated by the source
Drive device, transfer rateKnown for one	300 MB/s	Unknown — not stated by the source
Power requirementsKnown for one	Unknown — not stated by the source	5V / 12V
Drive ready timeKnown for one	Unknown — not stated by the source	5 s

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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