Product comparison · 2 internal hard drives

Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s vs Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk

18specifications compared
14differ
4identical
11known for one product only

Key differences

The Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s has 1,800 RPM more HDD speed than the Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk (7200 RPM vs 5400 RPM). The Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s has 1" more HDD size than the Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk (3.5" vs 2.5"). The Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk has 6 MB more storage drive buffer size than the Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s (8 MB vs 2 MB). Interface: Serial ATA II on the Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s, Serial ATA on the Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk. Operating voltage: 5 / 12 V on the Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s, 5 V on the Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk.

HDD speed
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:7200 RPM
- Momentus 5400.3 120GB SATA 5400RPM 25pk:5400 RPM
HDD size
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:3.5"
- Momentus 5400.3 120GB SATA 5400RPM 25pk:2.5"
Interface
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:Serial ATA II
- Momentus 5400.3 120GB SATA 5400RPM 25pk:Serial ATA
Storage drive buffer size
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:2 MB
- Momentus 5400.3 120GB SATA 5400RPM 25pk:8 MB
Average latency
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:4.16 ms
- Momentus 5400.3 120GB SATA 5400RPM 25pk:5.6 ms
Power consumption (standby)
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:1.30 W
- Momentus 5400.3 120GB SATA 5400RPM 25pk:0.2 W
Operating voltage
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:5 / 12 V
- Momentus 5400.3 120GB SATA 5400RPM 25pk:5 V
Operating shock
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:63 G
- Momentus 5400.3 120GB SATA 5400RPM 25pk:350 G

Side by side

Differences highlightedShow differences only

Comparison of Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s, Momentus 5400.3 120GB SATA 5400RPM 25pk
29 specifications	A Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s View product	B Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk View product
Features5 differ
HDD capacity	120 GB	120 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	Serial ATA
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeDiffers	2 MB	8 MB
Average seek timeKnown for one	Unknown — not stated by the source	12.5 ms
Average latencyDiffers	4.16 ms	5.6 ms
Read seek timeKnown for one	8 ms	Unknown — not stated by the source
Write seek timeKnown for one	9 ms	Unknown — not stated by the source
Power2 differ
Power consumption (standby)Differs	1.30 W	0.2 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	1 A
Operational conditions2 differ
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 shockDiffers	63 G	350 G
Non-operating shockDiffers	350 G	900 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	69.8 mm
DepthDiffers	147 mm	100.2 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	580 g	102 g
Other features1 differ
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	69.85 x 100.2 x 9.5 mm
Drive device, transfer rateDiffers	300 MB/s	150 MB/s
External power adapter	No	No
Internal	Yes	Yes
Mac compatibilityKnown for one	Unknown — not stated by the source	No
USB powered	No	No
HDD transfer rateKnown for one	867.2 Mbit/s	Unknown — not stated by the source
Sustained data rateKnown for one	83 MB/s	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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