Product comparison · 2 internal hard drives

Seagate 19.9GB HDD vs Seagate Cheetah ST3146855LC-RFB internal hard drive

23specifications compared
15differ
8identical
9known for one product only

Key differences

HDD capacity
- 19.9GB HDD:19.9 GB
- Cheetah ST3146855LC-RFB internal hard drive:146.8 GB
HDD speed
- 19.9GB HDD:7200 RPM
- Cheetah ST3146855LC-RFB internal hard drive:15000 RPM
Interface
- 19.9GB HDD:SCSI
- Cheetah ST3146855LC-RFB internal hard drive:Ultra320 SCSI
Storage drive buffer size
- 19.9GB HDD:2 MB
- Cheetah ST3146855LC-RFB internal hard drive:16 MB
HDD number of heads
- 19.9GB HDD:2
- Cheetah ST3146855LC-RFB internal hard drive:4
Read seek time
- 19.9GB HDD:6.9 ms
- Cheetah ST3146855LC-RFB internal hard drive:3.5 ms
Write seek time
- 19.9GB HDD:7.5 ms
- Cheetah ST3146855LC-RFB internal hard drive:4 ms
Average latency
- 19.9GB HDD:4.17 ms
- Cheetah ST3146855LC-RFB internal hard drive:2 ms

Side by side

Differences highlightedShow differences only

Comparison of 19.9GB HDD, ST3146855LC-RFB
32 specifications	A Seagate 19.9GB HDD View product	B Seagate Cheetah ST3146855LC-RFB internal hard drive Model ST3146855LC-RFB View product
Features8 differ
HDD capacityDiffers	19.9 GB	146.8 GB
HDD speedDiffers	7200 RPM	15000 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	SCSI	Ultra320 SCSI
Type	HDD	HDD
Storage drive buffer sizeDiffers	2 MB	16 MB
HDD number of headsDiffers	2	4
Read seek timeDiffers	6.9 ms	3.5 ms
Write seek timeDiffers	7.5 ms	4 ms
Average latencyDiffers	4.17 ms	2 ms
Full stroke seek timeKnown for one	10.7 ms	Unknown — not stated by the source
SMART technologyKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	14.2 W
Power consumption (idle)Known for one	Unknown — not stated by the source	9.6 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditions5 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 600 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitudeDiffers	-304.8 - 3048 m	-60.96 - 3048 m
Non-operating altitudeDiffers	-304.8 - 12192 m	-60.96 - 12192 m
Operating shockDiffers	63 G	60 G
Non-operating shockDiffers	350 G	250 G
Operating vibrationKnown for one	0.5 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	2 G	Unknown — not stated by the source
Weight & dimensions2 differ
Width	101.6 mm	101.6 mm
DepthDiffers	146.1 mm	46 mm
Height	25.4 mm	25.4 mm
WeightDiffers	540 g	771 g
Other featuresidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	32 dB

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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