Product comparison · 2 internal hard drives

Seagate Cheetah ST3450657SS-20PK internal hard drive vs Seagate Savvio ST9146653SS-20PK internal hard drive

26specifications compared
15differ
11identical
3known for one product only

Key differences

The Seagate Cheetah ST3450657SS-20PK internal hard drive has 304 GB more HDD capacity than the Seagate Savvio ST9146653SS-20PK internal hard drive (450 GB vs 146 GB). The Seagate Cheetah ST3450657SS-20PK internal hard drive has 1" more HDD size than the Seagate Savvio ST9146653SS-20PK internal hard drive (3.5" vs 2.5"). The Seagate Savvio ST9146653SS-20PK internal hard drive has 48 MB more storage drive buffer size than the Seagate Cheetah ST3450657SS-20PK internal hard drive (64 MB vs 16 MB). Operating voltage: 5 / 12 V on the Seagate Cheetah ST3450657SS-20PK internal hard drive, 5 V on the Seagate Savvio ST9146653SS-20PK internal hard drive.

HDD capacity
- Cheetah ST3450657SS-20PK internal hard drive:450 GB
- Savvio ST9146653SS-20PK internal hard drive:146 GB
HDD size
- Cheetah ST3450657SS-20PK internal hard drive:3.5"
- Savvio ST9146653SS-20PK internal hard drive:2.5"
Storage drive buffer size
- Cheetah ST3450657SS-20PK internal hard drive:16 MB
- Savvio ST9146653SS-20PK internal hard drive:64 MB
HDD number of cylinders
- Cheetah ST3450657SS-20PK internal hard drive:3
- Savvio ST9146653SS-20PK internal hard drive:1
HDD number of heads
- Cheetah ST3450657SS-20PK internal hard drive:6
- Savvio ST9146653SS-20PK internal hard drive:2
Read seek time
- Cheetah ST3450657SS-20PK internal hard drive:3.4 ms
- Savvio ST9146653SS-20PK internal hard drive:2.6 ms
Write seek time
- Cheetah ST3450657SS-20PK internal hard drive:3.9 ms
- Savvio ST9146653SS-20PK internal hard drive:3.1 ms
Power consumption (idle)
- Cheetah ST3450657SS-20PK internal hard drive:10.1 W
- Savvio ST9146653SS-20PK internal hard drive:3.86 W

Side by side

Differences highlightedShow differences only

Comparison of ST3450657SS-20PK, ST9146653SS-20PK
29 specifications	A Seagate Cheetah ST3450657SS-20PK internal hard drive Model ST3450657SS-20PK View product	B Seagate Savvio ST9146653SS-20PK internal hard drive Model ST9146653SS-20PK View product
Features7 differ
HDD capacityDiffers	450 GB	146 GB
HDD speed	15000 RPM	15000 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	SAS	SAS
Type	HDD	HDD
Storage drive buffer sizeDiffers	16 MB	64 MB
HDD number of cylindersDiffers	3	1
HDD number of headsDiffers	6	2
Read seek timeDiffers	3.4 ms	2.6 ms
Write seek timeDiffers	3.9 ms	3.1 ms
Average latency	2 ms	2 ms
Bytes per sector	512	512
Mean time between failures (MTBF)Known for one	1600000 h	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Known for one	14.6 W	Unknown — not stated by the source
Power consumption (idle)Differs	10.1 W	3.86 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	0.48 A
Operational conditions2 differ
Operating temperature (T-T)	5 - 55 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating vibrationDiffers	1 G	0.5 G
Non-operating vibrationDiffers	3 G	2.4 G
Operating shock	60 G	60 G
Non-operating shock	300 G	300 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	70.1 mm
DepthDiffers	146.5 mm	100.5 mm
HeightDiffers	25.4 mm	15 mm
WeightDiffers	676 g	193 g
Packaging dataidentical
Quantity per pack	20 pc(s)	20 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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