Product comparison · 2 internal hard drives

Dell 250GB SATA 3.5" vs Seagate Constellation ST31000425SS internal hard drive

8specifications compared
2differ
6identical
20known for one product only

Key differences

HDD capacity
- 250GB SATA 3.5":250 GB
- Constellation ST31000425SS internal hard drive:1 TB
Interface
- 250GB SATA 3.5":Serial ATA
- Constellation ST31000425SS internal hard drive:Serial ATA II

Side by side

Differences highlightedShow differences only

Comparison of 250GB SATA 3.5", ST31000425SS
28 specifications	A Dell 250GB SATA 3.5"View product	B Seagate Constellation ST31000425SS internal hard drive Model ST31000425SS View product
Features2 differ
HDD capacityDiffers	250 GB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
Read seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	9.5 ms
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	8 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 60 °C
Operating shockKnown for one	Unknown — not stated by the source	70 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101.6 mm
DepthKnown for one	Unknown — not stated by the source	147 mm
HeightKnown for one	Unknown — not stated by the source	26.1 mm
WeightKnown for one	Unknown — not stated by the source	640 g
Other featuresidentical
Drive device, transfer rate	150 MB/s	150 MB/s
External power adapterKnown for one	Unknown — not stated by the source	No
Internal	Yes	Yes
Mac compatibilityKnown for one	Unknown — not stated by the source	No
USB powered	No	No
USB requiredKnown for one	Unknown — not stated by the source	No
Ethernet LANKnown for one	No	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
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

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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