Product comparison · 2 internal hard drives

Seagate 160GB Barracuda vs Seagate 640GB 2.5" SATA

15specifications compared
10differ
5identical
21known for one product only

Key differences

HDD capacity
- 160GB Barracuda:160 GB
- 640GB 2.5" SATA:640 GB
HDD speed
- 160GB Barracuda:7200 RPM
- 640GB 2.5" SATA:5400 RPM
HDD size
- 160GB Barracuda:3.5"
- 640GB 2.5" SATA:2.5"
Average latency
- 160GB Barracuda:4.16 ms
- 640GB 2.5" SATA:5.5 ms
Operating voltage
- 160GB Barracuda:5 / 12 V
- 640GB 2.5" SATA:5 V
Storage temperature (T-T)
- 160GB Barracuda:40 - 70 °C
- 640GB 2.5" SATA:-40 - 70 °C
Width
- 160GB Barracuda:101.6 mm
- 640GB 2.5" SATA:69.8 mm
Depth
- 160GB Barracuda:147 mm
- 640GB 2.5" SATA:100.3 mm

Side by side

Differences highlightedShow differences only

Comparison of 160GB Barracuda, 640GB 2.5" SATA
36 specifications	A Seagate 160GB Barracuda View product	B Seagate 640GB 2.5" SATA View product
Features4 differ
HDD capacityDiffers	160 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	Serial ATA II	Serial ATA II
Storage drive buffer size	8 MB	8 MB
Read seek time	11 ms	11 ms
Write seek timeKnown for one	12 ms	Unknown — not stated by the source
Average latencyDiffers	4.16 ms	5.5 ms
TypeKnown for one	Unknown — not stated by the source	HDD
Component forKnown for one	Unknown — not stated by the source	Laptop
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Power consumption (idle)Known for one	Unknown — not stated by the source	0.68 W
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)Differs	40 - 70 °C	-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	800 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	69.8 mm
DepthDiffers	147 mm	100.3 mm
HeightDiffers	20.2 mm	9.5 mm
WeightDiffers	390 g	100 g
Other featuresidentical
Ethernet LANKnown for one	No	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	101.6 x 146.99 x 20.7 mm	Unknown — not stated by the source
Fibre ChannelKnown for one	No	Unknown — not stated by the source
FireWire 400Known for one	No	Unknown — not stated by the source
FireWire 800Known for one	No	Unknown — not stated by the source
Internal	Yes	Yes
Maximum data transfer rateKnown for one	300 Mbit/s	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
USB poweredKnown for one	No	Unknown — not stated by the source
Sustained data rateKnown for one	115 MB/s	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Black
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	26 dB
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717050

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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