Product comparison · 2 internal hard drives

Seagate 160GB 2.5" SATA vs Seagate Barracuda ES 320GB, 7200rpm, SATA-II

19specifications compared
16differ
3identical
19known for one product only

Key differences

The Seagate Barracuda ES 320GB, 7200rpm, SATA-II has 160 GB more HDD capacity than the Seagate 160GB 2.5" SATA (320 GB vs 160 GB). The Seagate Barracuda ES 320GB, 7200rpm, SATA-II has 1,800 RPM more HDD speed than the Seagate 160GB 2.5" SATA (7200 RPM vs 5400 RPM). The Seagate Barracuda ES 320GB, 7200rpm, SATA-II has 1" more HDD size than the Seagate 160GB 2.5" SATA (3.5" vs 2.5"). Interface: Serial ATA on the Seagate 160GB 2.5" SATA, Serial ATA II on the Seagate Barracuda ES 320GB, 7200rpm, SATA-II. Operating voltage: 5 V on the Seagate 160GB 2.5" SATA, 5 / 12 V on the Seagate Barracuda ES 320GB, 7200rpm, SATA-II.

HDD capacity
- 160GB 2.5" SATA:160 GB
- Barracuda ES 320GB, 7200rpm, SATA-II:320 GB
HDD speed
- 160GB 2.5" SATA:5400 RPM
- Barracuda ES 320GB, 7200rpm, SATA-II:7200 RPM
HDD size
- 160GB 2.5" SATA:2.5"
- Barracuda ES 320GB, 7200rpm, SATA-II:3.5"
Interface
- 160GB 2.5" SATA:Serial ATA
- Barracuda ES 320GB, 7200rpm, SATA-II:Serial ATA II
Storage drive buffer size
- 160GB 2.5" SATA:8 MB
- Barracuda ES 320GB, 7200rpm, SATA-II:16 MB
Read seek time
- 160GB 2.5" SATA:12.5 ms
- Barracuda ES 320GB, 7200rpm, SATA-II:9.5 ms
Write seek time
- 160GB 2.5" SATA:13 ms
- Barracuda ES 320GB, 7200rpm, SATA-II:8.5 ms
Average latency
- 160GB 2.5" SATA:5.6 ms
- Barracuda ES 320GB, 7200rpm, SATA-II:4.16 ms

Side by side

Differences highlightedShow differences only

Comparison of 160GB 2.5" SATA, Barracuda ES 320GB, 7200rpm, SATA-II
38 specifications	A Seagate 160GB 2.5" SATA View product	B Seagate Barracuda ES 320GB, 7200rpm, SATA-II View product
Features8 differ
HDD capacityDiffers	160 GB	320 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
TypeKnown for one	HDD	Unknown — not stated by the source
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
HDD number of headsKnown for one	4	Unknown — not stated by the source
Read seek timeDiffers	12.5 ms	9.5 ms
Write seek timeDiffers	13 ms	8.5 ms
Average latencyDiffers	5.6 ms	4.16 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power1 differ
Power consumption (standby)Known for one	0.2 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.6 W	Unknown — not stated by the source
Power consumption (read)Known for one	1.9 W	Unknown — not stated by the source
Power consumption (write)Known for one	1.8 W	Unknown — not stated by the source
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Power consumption (typical)Known for one	Unknown — not stated by the source	15 W
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating altitude	-60.96 - 3048 m	-60.96 - 3048 m
Non-operating altitude	-60.96 - 12192 m	-60.96 - 12192 m
Operating shockDiffers	350 G	63 G
Non-operating shockDiffers	900 G	225 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.5 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	100 g	720 g
Other featuresidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes
Maximum data transfer rateKnown for one	Unknown — not stated by the source	1030 Mbit/s
Sustained data rateKnown for one	Unknown — not stated by the source	72 MB/s

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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