Product comparison · 2 internal hard drives

Seagate Savvio ST450MM0026-30PK internal hard drive vs Seagate Constellation ST91000640NS-30PK internal hard drive

23specifications compared
11differ
12identical
6known for one product only

Key differences

The Seagate Savvio ST450MM0026-30PK internal hard drive has 2,800 RPM more HDD speed than the Seagate Constellation ST91000640NS-30PK internal hard drive (10000 RPM vs 7200 RPM). The Seagate Savvio ST450MM0026-30PK internal hard drive has 1" more HDD size than the Seagate Constellation ST91000640NS-30PK internal hard drive (3.5" vs 2.5"). The Seagate Constellation ST91000640NS-30PK internal hard drive has 1.26 ms more average latency than the Seagate Savvio ST450MM0026-30PK internal hard drive (4.16 ms vs 2.9 ms). HDD capacity: 450 GB on the Seagate Savvio ST450MM0026-30PK internal hard drive, 1 TB on the Seagate Constellation ST91000640NS-30PK internal hard drive. Interface: SAS on the Seagate Savvio ST450MM0026-30PK internal hard drive, Serial ATA III on the Seagate Constellation ST91000640NS-30PK internal hard drive.

HDD capacity
- Savvio ST450MM0026-30PK internal hard drive:450 GB
- Constellation ST91000640NS-30PK internal hard drive:1 TB
HDD speed
- Savvio ST450MM0026-30PK internal hard drive:10000 RPM
- Constellation ST91000640NS-30PK internal hard drive:7200 RPM
HDD size
- Savvio ST450MM0026-30PK internal hard drive:3.5"
- Constellation ST91000640NS-30PK internal hard drive:2.5"
Interface
- Savvio ST450MM0026-30PK internal hard drive:SAS
- Constellation ST91000640NS-30PK internal hard drive:Serial ATA III
Average latency
- Savvio ST450MM0026-30PK internal hard drive:2.9 ms
- Constellation ST91000640NS-30PK internal hard drive:4.16 ms
Power consumption (typical)
- Savvio ST450MM0026-30PK internal hard drive:7.16 W
- Constellation ST91000640NS-30PK internal hard drive:5.21 W
Power consumption (idle)
- Savvio ST450MM0026-30PK internal hard drive:3.4 W
- Constellation ST91000640NS-30PK internal hard drive:3.31 W
Operating voltage
- Savvio ST450MM0026-30PK internal hard drive:5 / 12 V
- Constellation ST91000640NS-30PK internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of ST450MM0026-30PK, ST91000640NS-30PK
29 specifications	A Seagate Savvio ST450MM0026-30PK internal hard drive Model ST450MM0026-30PK View product	B Seagate Constellation ST91000640NS-30PK internal hard drive Model ST91000640NS-30PK View product
Features5 differ
HDD capacityDiffers	450 GB	1 TB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA III
Type	HDD	HDD
Storage drive buffer size	64 MB	64 MB
HDD number of headsKnown for one	3	Unknown — not stated by the source
Average latencyDiffers	2.9 ms	4.16 ms
Bytes per sectorKnown for one	512	Unknown — not stated by the source
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
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Power3 differ
Power consumption (typical)Differs	7.16 W	5.21 W
Power consumption (idle)Differs	3.4 W	3.31 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 55 °C	5 - 60 °C
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
Operating vibration	0.5 G	0.5 G
Non-operating vibration	3 G	3 G
Operating shockDiffers	40 G	70 G
Non-operating shock	400 G	400 G
Packaging contentidentical
Manual	Yes	Yes
Quick start guide	Yes	Yes
Weight & dimensions1 differ
Width	70.1 mm	70.1 mm
Depth	100.5 mm	100.5 mm
Height	15 mm	15 mm
WeightDiffers	222 g	200 g
Packaging dataidentical
Quantity per pack	30 pc(s)	30 pc(s)
Other featuresidentical
Data transfer rate	6 Gbit/s	6 Gbit/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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