Product comparison · 2 internal hard drives

Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM vs Seagate 640GB 3.5'' SATA II

12specifications compared
10differ
2identical
20known for one product only

Key differences

The Seagate 640GB 3.5'' SATA II has 140 GB more HDD capacity than the Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM (640 GB vs 500 GB). The Seagate 640GB 3.5'' SATA II has 3,000 RPM more HDD speed than the Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM (7200 RPM vs 4200 RPM). The Seagate 640GB 3.5'' SATA II has 1" more HDD size than the Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM (3.5" vs 2.5"). Interface: Serial ATA on the Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM, Serial ATA II on the Seagate 640GB 3.5'' SATA II. Operating voltage: 5 V on the Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM, 5 / 12 V on the Seagate 640GB 3.5'' SATA II.

HDD capacity
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:500 GB
- 640GB 3.5'' SATA II:640 GB
HDD speed
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:4200 RPM
- 640GB 3.5'' SATA II:7200 RPM
HDD size
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:2.5"
- 640GB 3.5'' SATA II:3.5"
Interface
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:Serial ATA
- 640GB 3.5'' SATA II:Serial ATA II
Storage drive buffer size
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:8 MB
- 640GB 3.5'' SATA II:32 MB
Operating voltage
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:5 V
- 640GB 3.5'' SATA II:5 / 12 V
Width
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:70 mm
- 640GB 3.5'' SATA II:101.6 mm
Depth
- MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM:100 mm
- 640GB 3.5'' SATA II:147 mm

Side by side

Differences highlightedShow differences only

Comparison of MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM, 640GB 3.5'' SATA II
32 specifications	A Fujitsu MHZ2500BT - 500 GB, 2.5", SATA, 4200 RPM View product	B Seagate 640GB 3.5'' SATA II View product
Features5 differ
HDD capacityDiffers	500 GB	640 GB
HDD speedDiffers	4200 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Storage drive buffer sizeDiffers	8 MB	32 MB
Read seek timeKnown for one	12 ms	Unknown — not stated by the source
Write seek timeKnown for one	14 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	1.5 ms	Unknown — not stated by the source
Average latencyKnown for one	7.14 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
TypeKnown for one	Unknown — not stated by the source	HDD
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	750000 h
Power1 differ
Power consumption (standby)Known for one	0.13 W	Unknown — not stated by the source
Operating voltageDiffers	5 V	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 55 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 65 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	8 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibrationKnown for one	9.8 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	49 G	Unknown — not stated by the source
Operating altitudeKnown for one	-300 - 3000 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-300 - 12000 m	Unknown — not stated by the source
Operating shockKnown for one	325 G	Unknown — not stated by the source
Non-operating shockKnown for one	900 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	70 mm	101.6 mm
DepthDiffers	100 mm	147 mm
HeightDiffers	12.5 mm	26.1 mm
WeightDiffers	135 g	380 g
Other featuresidentical
HDD transfer rateKnown for one	300 Mbit/s	Unknown — not stated by the source
Data transfer rate	3 Gbit/s	3 Gbit/s
Internal	Yes	Yes

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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