Product comparison · 2 internal hard drives

Seagate 250GB 3.5" SATA vs Seagate 80GB 3.5" Ultra ATA/100

28specifications compared
10differ
18identical
7known for one product only

Key differences

The Seagate 250GB 3.5" SATA has 170 GB more HDD capacity than the Seagate 80GB 3.5" Ultra ATA/100 (250 GB vs 80 GB). The Seagate 250GB 3.5" SATA has 1,800 RPM more HDD speed than the Seagate 80GB 3.5" Ultra ATA/100 (7200 RPM vs 5400 RPM). The Seagate 250GB 3.5" SATA has 7 MB more storage drive buffer size than the Seagate 80GB 3.5" Ultra ATA/100 (8 MB vs 1 MB). Interface: Serial ATA on the Seagate 250GB 3.5" SATA, Ultra-ATA/100 on the Seagate 80GB 3.5" Ultra ATA/100.

HDD capacity
- 250GB 3.5" SATA:250 GB
- 80GB 3.5" Ultra ATA/100:80 GB
HDD speed
- 250GB 3.5" SATA:7200 RPM
- 80GB 3.5" Ultra ATA/100:5400 RPM
Interface
- 250GB 3.5" SATA:Serial ATA
- 80GB 3.5" Ultra ATA/100:Ultra-ATA/100
Storage drive buffer size
- 250GB 3.5" SATA:8 MB
- 80GB 3.5" Ultra ATA/100:1 MB
Power consumption (standby)
- 250GB 3.5" SATA:0.8 W
- 80GB 3.5" Ultra ATA/100:0.9 W
Power consumption (idle)
- 250GB 3.5" SATA:6.9 W
- 80GB 3.5" Ultra ATA/100:7.5 W
Start-up current
- 250GB 3.5" SATA:2 A
- 80GB 3.5" Ultra ATA/100:2.8 A
Non-operating shock
- 250GB 3.5" SATA:300 G
- 80GB 3.5" Ultra ATA/100:350 G

Side by side

Differences highlightedShow differences only

Comparison of 250GB 3.5" SATA, 80GB 3.5" Ultra ATA/100
35 specifications	A Seagate 250GB 3.5" SATA View product	B Seagate 80GB 3.5" Ultra ATA/100 View product
Features4 differ
HDD capacityDiffers	250 GB	80 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Type	HDD	HDD
Storage drive buffer sizeDiffers	8 MB	1 MB
HDD number of cylinders	16383	16383
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 latency	4.16 ms	4.16 ms
Bytes per sector	512	512
Start/stop cycles	50000	50000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	600000 h
HDD number of headsKnown for one	16	Unknown — not stated by the source
Power3 differ
Power consumption (standby)Differs	0.8 W	0.9 W
Power consumption (idle)Differs	6.9 W	7.5 W
Power consumption (read)Known for one	Unknown — not stated by the source	12 W
Power consumption (write)Known for one	Unknown — not stated by the source	12 W
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentDiffers	2 A	2.8 A
Operational conditions1 differ
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)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitude	-60.96 - 3048 m	-60.96 - 3048 m
Non-operating altitude	-60.96 - 12192 m	-60.96 - 12192 m
Operating shock	63 G	63 G
Non-operating shockDiffers	300 G	350 G
Weight & dimensions2 differ
WidthDiffers	101 mm	101.6 mm
DepthDiffers	146 mm	147 mm
Height	26 mm	26 mm
Weight	635 g	635 g
Other featuresidentical
Windows operating systems supported	Yes	Yes
Linux operating systems supported	Yes	Yes
Acoustic pressure emissionsKnown for one	3.4 dB	Unknown — not stated by the source

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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