Product comparison · 2 internal hard drives

Seagate 146.8GB HD vs Seagate 250GB HDD

17specifications compared
12differ
5identical
20known for one product only

Key differences

The Seagate 250GB HDD has 104 GB more HDD capacity than the Seagate 146.8GB HD (250 GB vs 146 GB). The Seagate 146.8GB HD has 7,800 RPM more HDD speed than the Seagate 250GB HDD (15000 RPM vs 7200 RPM). The Seagate 250GB HDD has 0.6 ms more track to track seek time than the Seagate 146.8GB HD (0.8 ms vs 0.2 ms). Interface: SCSI on the Seagate 146.8GB HD, Ultra-ATA/100 on the Seagate 250GB HDD. Operating temperature (T-T): 5 - 55 °C on the Seagate 146.8GB HD, 0 - 60 °C on the Seagate 250GB HDD.

HDD capacity
- 146.8GB HD:146 GB
- 250GB HDD:250 GB
HDD speed
- 146.8GB HD:15000 RPM
- 250GB HDD:7200 RPM
Interface
- 146.8GB HD:SCSI
- 250GB HDD:Ultra-ATA/100
Track to track seek time
- 146.8GB HD:0.2 ms
- 250GB HDD:0.8 ms
Average latency
- 146.8GB HD:2 ms
- 250GB HDD:4.16 ms
Operating temperature (T-T)
- 146.8GB HD:5 - 55 °C
- 250GB HDD:0 - 60 °C
Operating shock
- 146.8GB HD:40 G
- 250GB HDD:63 G
Non-operating shock
- 146.8GB HD:250 G
- 250GB HDD:300 G

Side by side

Differences highlightedShow differences only

Comparison of 146.8GB HD, 250GB HDD
37 specifications	A Seagate 146.8GB HD View product	B Seagate 250GB HDD View product
Features5 differ
HDD capacityDiffers	146 GB	250 GB
HDD speedDiffers	15000 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	SCSI	Ultra-ATA/100
Type	HDD	HDD
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Storage drive buffer size	8 MB	8 MB
HDD number of headsKnown for one	8	Unknown — not stated by the source
Read seek timeKnown for one	3.5 ms	Unknown — not stated by the source
Write seek timeKnown for one	4 ms	Unknown — not stated by the source
Full stroke seek timeKnown for one	7.9 ms	Unknown — not stated by the source
Track to track seek timeDiffers	0.2 ms	0.8 ms
Average latencyDiffers	2 ms	4.16 ms
SMART technologyKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1400000 h	Unknown — not stated by the source
Average seek timeKnown for one	Unknown — not stated by the source	8 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Power consumption (typical)Known for one	Unknown — not stated by the source	12.8 W
Power consumption (idle)Known for one	Unknown — not stated by the source	7.2 W
Start-up currentKnown for one	Unknown — not stated by the source	2.8 A
Operational conditions3 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 95%	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	0.4 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	1.2 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	40 G	63 G
Non-operating shockDiffers	250 G	300 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	101.8 mm
DepthDiffers	146.1 mm	147 mm
HeightDiffers	25.4 mm	26.1 mm
WeightDiffers	730 g	635 g
Other featuresidentical
Mac compatibilityKnown for one	Unknown — not stated by the source	No

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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