Product comparison · 2 internal hard drives

Seagate 3.5" 1.5 TB SATA vs Seagate Momentus 250GB

10specifications compared
7differ
3identical
17known for one product only

Key differences

HDD capacity
- 3.5" 1.5 TB SATA:1.5 TB
- Momentus 250GB:250 GB
HDD speed
- 3.5" 1.5 TB SATA:5900 RPM
- Momentus 250GB:7200 RPM
Storage drive buffer size
- 3.5" 1.5 TB SATA:32 MB
- Momentus 250GB:16 MB
Width
- 3.5" 1.5 TB SATA:101.8 mm
- Momentus 250GB:69.8 mm
Depth
- 3.5" 1.5 TB SATA:147 mm
- Momentus 250GB:100.3 mm
Height
- 3.5" 1.5 TB SATA:26.1 mm
- Momentus 250GB:9.5 mm
Weight
- 3.5" 1.5 TB SATA:920 g
- Momentus 250GB:110 g

Side by side

Differences highlightedShow differences only

Comparison of 3.5" 1.5 TB SATA, Momentus 250GB
27 specifications	A Seagate 3.5" 1.5 TB SATA View product	B Seagate Momentus 250GB View product
Features3 differ
HDD capacityDiffers	1.5 TB	250 GB
HDD speedDiffers	5900 RPM	7200 RPM
Interface	Serial ATA II	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeDiffers	32 MB	16 MB
Read seek timeKnown for one	Unknown — not stated by the source	11 ms
Write seek timeKnown for one	Unknown — not stated by the source	13 ms
Average latencyKnown for one	Unknown — not stated by the source	4.17 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Poweridentical
Power consumption (off)Known for one	Unknown — not stated by the source	1 W
Start-up currentKnown for one	Unknown — not stated by the source	1 A
Operating voltageKnown for one	5 / 12 V	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating shockKnown for one	Unknown — not stated by the source	350 G
Non-operating shockKnown for one	Unknown — not stated by the source	1000 G
Weight & dimensions4 differ
WidthDiffers	101.8 mm	69.8 mm
DepthDiffers	147 mm	100.3 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	920 g	110 g
Other featuresidentical
Data transfer rate	3 Gbit/s	3 Gbit/s
Internal	Yes	Yes
CertificationKnown for one	Unknown — not stated by the source	FIPS 140-2
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	2.3 dB
Cartridge load/Unload cyclesKnown for one	Unknown — not stated by the source	600000
Dimensions (W x D x H) (imperial)Known for one	Unknown — not stated by the source	69.8 x 100.4 x 9.4 mm (2.75 x 3.95 x 0.37")

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.

More internal hard drive comparisons

All internal hard drive comparisons