Product comparison · 2 internal hard drives

Seagate 3TB SATA III 3.5" vs Seagate Momentus ST320LT020 internal hard drive

12specifications compared
11differ
1identical
15known for one product only

Key differences

HDD capacity
- 3TB SATA III 3.5":3 TB
- Momentus ST320LT020 internal hard drive:320 GB
HDD speed
- 3TB SATA III 3.5":7200 RPM
- Momentus ST320LT020 internal hard drive:5400 RPM
HDD size
- 3TB SATA III 3.5":3.5"
- Momentus ST320LT020 internal hard drive:2.5"
Interface
- 3TB SATA III 3.5":Serial ATA III
- Momentus ST320LT020 internal hard drive:Serial ATA II
Storage drive buffer size
- 3TB SATA III 3.5":64 MB
- Momentus ST320LT020 internal hard drive:16 MB
Average latency
- 3TB SATA III 3.5":4.16 ms
- Momentus ST320LT020 internal hard drive:5.6 ms
Operating voltage
- 3TB SATA III 3.5":5 / 12 V
- Momentus ST320LT020 internal hard drive:5 V
Width
- 3TB SATA III 3.5":101.6 mm
- Momentus ST320LT020 internal hard drive:70.1 mm

Side by side

Differences highlightedShow differences only

Comparison of 3TB SATA III 3.5", ST320LT020
27 specifications	A Seagate 3TB SATA III 3.5"View product	B Seagate Momentus ST320LT020 internal hard drive Model ST320LT020 View product
Features6 differ
HDD capacityDiffers	3 TB	320 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA III	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeDiffers	64 MB	16 MB
Average latencyDiffers	4.16 ms	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Native Command Queuing (NCQ)Known for one	Unknown — not stated by the source	Yes
Read seek timeKnown for one	8.5 ms	Unknown — not stated by the source
Write seek timeKnown for one	9.5 ms	Unknown — not stated by the source
Power1 differ
Power consumption (idle)Known for one	Unknown — not stated by the source	0.48 W
Operating voltageDiffers	5 / 12 V	5 V
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	101.6 mm	70.1 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	26.1 mm	7 mm
WeightDiffers	626 g	92 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Internal	Yes	Yes
Depth (imperial)Known for one	14.7 cm (5.79")	Unknown — not stated by the source
Height (imperial)Known for one	2.61 cm (1.03")	Unknown — not stated by the source
Width (imperial)Known for one	10.2 cm (4")	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Yes	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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