Product comparison · 2 internal hard drives

Seagate Constellation ST91000642SS-RF internal hard drive vs Seagate Savvio ST9600204FC-RF internal hard drive

26specifications compared
16differ
10identical
11known for one product only

Key differences

HDD capacity
- Constellation ST91000642SS-RF internal hard drive:1 TB
- Savvio ST9600204FC-RF internal hard drive:600 GB
HDD speed
- Constellation ST91000642SS-RF internal hard drive:7200 RPM
- Savvio ST9600204FC-RF internal hard drive:10000 RPM
Storage drive buffer size
- Constellation ST91000642SS-RF internal hard drive:64 MB
- Savvio ST9600204FC-RF internal hard drive:16 MB
HDD number of heads
- Constellation ST91000642SS-RF internal hard drive:8
- Savvio ST9600204FC-RF internal hard drive:6
Read seek time
- Constellation ST91000642SS-RF internal hard drive:7.5 ms
- Savvio ST9600204FC-RF internal hard drive:3.89 ms
Write seek time
- Constellation ST91000642SS-RF internal hard drive:8.5 ms
- Savvio ST9600204FC-RF internal hard drive:4.54 ms
Average latency
- Constellation ST91000642SS-RF internal hard drive:4.16 ms
- Savvio ST9600204FC-RF internal hard drive:3 ms
Power consumption (typical)
- Constellation ST91000642SS-RF internal hard drive:6.35 W
- Savvio ST9600204FC-RF internal hard drive:4.6 W

Side by side

Differences highlightedShow differences only

Comparison of ST91000642SS-RF, ST9600204FC-RF
37 specifications	A Seagate Constellation ST91000642SS-RF internal hard drive Model ST91000642SS-RF View product	B Seagate Savvio ST9600204FC-RF internal hard drive Model ST9600204FC-RF View product
Features7 differ
HDD capacityDiffers	1 TB	600 GB
HDD speedDiffers	7200 RPM	10000 RPM
HDD size	2.5"	2.5"
Interface	SAS	SAS
Type	HDD	HDD
Storage drive buffer sizeDiffers	64 MB	16 MB
HDD number of headsDiffers	8	6
Read seek timeDiffers	7.5 ms	3.89 ms
Write seek timeDiffers	8.5 ms	4.54 ms
Average latencyDiffers	4.16 ms	3 ms
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Refurbished	Yes	Yes
Mean time between failures (MTBF)Known for one	1400000 h	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	6.35 W	4.6 W
Operating voltage	5 V	5 V
Start-up currentDiffers	2 A	0.78 A
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibration	0.5 G	0.5 G
Non-operating vibration	3 G	3 G
Operating altitudeKnown for one	-60.96 - 3048 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-60.96 - 12192 m	Unknown — not stated by the source
Operating shockDiffers	70 G	40 G
Non-operating shock	400 G	400 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	70 mm
DepthDiffers	100 mm	100.2 mm
HeightDiffers	15 mm	14.8 mm
WeightDiffers	200 g	208 g
Other features1 differ
Data transfer rateDiffers	4.69 Gbit/s	4 Gbit/s
Internal	Yes	Yes
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Disks included quantityKnown for one	Unknown — not stated by the source	3 pc(s)
Fibre ChannelKnown for one	Unknown — not stated by the source	Yes
Dimensions (W x D x H) (imperial)Known for one	Unknown — not stated by the source	69.8 x 100.2 x 14.8 mm (2.75 x 3.94 x 0.583")
Weight (imperial)Known for one	Unknown — not stated by the source	0.227 kg (0.5 lbs)

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.

More internal hard drive comparisons

All internal hard drive comparisons