Product comparison · 2 internal hard drives

Seagate Savvio ST450MM0026-30PK internal hard drive vs Seagate Constellation ST91000640SS-30PK internal hard drive

23specifications compared
10differ
13identical
7known 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 ST91000640SS-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 ST91000640SS-30PK internal hard drive (3.5" vs 2.5"). The Seagate Constellation ST91000640SS-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 ST91000640SS-30PK internal hard drive. Operating voltage: 5 / 12 V on the Seagate Savvio ST450MM0026-30PK internal hard drive, 5 V on the Seagate Constellation ST91000640SS-30PK internal hard drive.

HDD capacity
- Savvio ST450MM0026-30PK internal hard drive:450 GB
- Constellation ST91000640SS-30PK internal hard drive:1 TB
HDD speed
- Savvio ST450MM0026-30PK internal hard drive:10000 RPM
- Constellation ST91000640SS-30PK internal hard drive:7200 RPM
HDD size
- Savvio ST450MM0026-30PK internal hard drive:3.5"
- Constellation ST91000640SS-30PK internal hard drive:2.5"
Average latency
- Savvio ST450MM0026-30PK internal hard drive:2.9 ms
- Constellation ST91000640SS-30PK internal hard drive:4.16 ms
Power consumption (typical)
- Savvio ST450MM0026-30PK internal hard drive:7.16 W
- Constellation ST91000640SS-30PK internal hard drive:6.35 W
Power consumption (idle)
- Savvio ST450MM0026-30PK internal hard drive:3.4 W
- Constellation ST91000640SS-30PK internal hard drive:3.85 W
Operating voltage
- Savvio ST450MM0026-30PK internal hard drive:5 / 12 V
- Constellation ST91000640SS-30PK internal hard drive:5 V
Operating temperature (T-T)
- Savvio ST450MM0026-30PK internal hard drive:5 - 55 °C
- Constellation ST91000640SS-30PK internal hard drive:5 - 60 °C

Side by side

Differences highlightedShow differences only

Comparison of ST450MM0026-30PK, ST91000640SS-30PK
30 specifications	A Seagate Savvio ST450MM0026-30PK internal hard drive Model ST450MM0026-30PK View product	B Seagate Constellation ST91000640SS-30PK internal hard drive Model ST91000640SS-30PK View product
Features4 differ
HDD capacityDiffers	450 GB	1 TB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	SAS	SAS
Type	HDD	HDD
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Storage drive buffer size	64 MB	64 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 latencyDiffers	2.9 ms	4.16 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
HDD number of headsKnown for one	3	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Power3 differ
Power consumption (typical)Differs	7.16 W	6.35 W
Power consumption (idle)Differs	3.4 W	3.85 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 55 °C	5 - 60 °C
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
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
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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