Product comparison · 2 internal hard drives

Seagate Momentus 5400.2 40GB vs Seagate NL35 Series 250GB SATA 20pk

12specifications compared
10differ
2identical
18known for one product only

Key differences

The Seagate NL35 Series 250GB SATA 20pk has 210 GB more HDD capacity than the Seagate Momentus 5400.2 40GB (250 GB vs 40 GB). The Seagate NL35 Series 250GB SATA 20pk has 1,800 RPM more HDD speed than the Seagate Momentus 5400.2 40GB (7200 RPM vs 5400 RPM). The Seagate NL35 Series 250GB SATA 20pk has 8 MB more storage drive buffer size than the Seagate Momentus 5400.2 40GB (16 MB vs 8 MB). Interface: Ultra-ATA/133 on the Seagate Momentus 5400.2 40GB, Serial ATA on the Seagate NL35 Series 250GB SATA 20pk. Storage temperature (T-T): -40 - 70 °C on the Seagate Momentus 5400.2 40GB, 0 - 60 °C on the Seagate NL35 Series 250GB SATA 20pk.

HDD capacity
- Momentus 5400.2 40GB:40 GB
- NL35 Series 250GB SATA 20pk:250 GB
HDD speed
- Momentus 5400.2 40GB:5400 RPM
- NL35 Series 250GB SATA 20pk:7200 RPM
Interface
- Momentus 5400.2 40GB:Ultra-ATA/133
- NL35 Series 250GB SATA 20pk:Serial ATA
Storage drive buffer size
- Momentus 5400.2 40GB:8 MB
- NL35 Series 250GB SATA 20pk:16 MB
Average latency
- Momentus 5400.2 40GB:5.6 ms
- NL35 Series 250GB SATA 20pk:4.16 ms
Storage temperature (T-T)
- Momentus 5400.2 40GB:-40 - 70 °C
- NL35 Series 250GB SATA 20pk:0 - 60 °C
Width
- Momentus 5400.2 40GB:69.8 mm
- NL35 Series 250GB SATA 20pk:101.6 mm
Depth
- Momentus 5400.2 40GB:100.2 mm
- NL35 Series 250GB SATA 20pk:146.6 mm

Side by side

Differences highlightedShow differences only

Comparison of Momentus 5400.2 40GB, NL35 Series 250GB SATA 20pk
30 specifications	A Seagate Momentus 5400.2 40GB View product	B Seagate NL35 Series 250GB SATA 20pk View product
Features5 differ
HDD capacityDiffers	40 GB	250 GB
HDD speedDiffers	5400 RPM	7200 RPM
InterfaceDiffers	Ultra-ATA/133	Serial ATA
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
Average seek timeKnown for one	12.5 ms	Unknown — not stated by the source
Average latencyDiffers	5.6 ms	4.16 ms
Bytes per sector	512	512
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Access timeKnown for one	Unknown — not stated by the source	10 ms
Read seek timeKnown for one	Unknown — not stated by the source	5 ms
Write seek timeKnown for one	Unknown — not stated by the source	9 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Poweridentical
Power consumption (typical)Known for one	0.8 W	Unknown — not stated by the source
Power consumption (standby)Known for one	0.28 W	Unknown — not stated by the source
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)Known for one	5 - 55 °C	Unknown — not stated by the source
Storage temperature (T-T)Differs	-40 - 70 °C	0 - 60 °C
Non-operating shockKnown for one	900 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.2 mm	146.6 mm
HeightDiffers	9.5 mm	25.7 mm
WeightDiffers	100 g	726 g
Other featuresidentical
Drive device, transfer rateKnown for one	100 MB/s	Unknown — not stated by the source
External power adapterKnown for one	No	Unknown — not stated by the source
Internal	Yes	Yes
Mac compatibilityKnown for one	No	Unknown — not stated by the source
USB poweredKnown for one	No	Unknown — not stated by the source
HDD transfer rateKnown for one	Unknown — not stated by the source	150 Mbit/s
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.6 x 146.55 x 25.654 mm

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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