Product comparison · 2 internal hard drives

Seagate 2000GB 3.5" SATA III vs Seagate 300GB SAS

Key differences

HDD capacity
- 2000GB 3.5" SATA III:2 TB
- 300GB SAS:300 GB
HDD speed
- 2000GB 3.5" SATA III:7200 RPM
- 300GB SAS:15000 RPM
Interface
- 2000GB 3.5" SATA III:Serial ATA III
- 300GB SAS:SAS
Storage drive buffer size
- 2000GB 3.5" SATA III:64 MB
- 300GB SAS:16 MB
Average latency
- 2000GB 3.5" SATA III:4.16 ms
- 300GB SAS:2 ms
Mean time between failures (MTBF)
- 2000GB 3.5" SATA III:750000 h
- 300GB SAS:1600000 h
Power consumption (typical)
- 2000GB 3.5" SATA III:9.23 W
- 300GB SAS:13.8 W
Start-up current
- 2000GB 3.5" SATA III:2.8 A
- 300GB SAS:3.98 A

Differences highlightedShow differences only

Comparison of 2000GB 3.5" SATA III, 300GB SAS
27 specifications	A Seagate 2000GB 3.5" SATA III View product	B Seagate 300GB SAS View product
Features6 differ
HDD capacityDiffers	2 TB	300 GB
HDD speedDiffers	7200 RPM	15000 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA III	SAS
Type	HDD	HDD
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Storage drive buffer sizeDiffers	64 MB	16 MB
HDD number of headsKnown for one	Unknown — not stated by the source	4
Read seek timeKnown for one	Unknown — not stated by the source	3.4 ms
Write seek timeKnown for one	Unknown — not stated by the source	3.9 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.2 ms
Average latencyDiffers	4.16 ms	2 ms
Mean time between failures (MTBF)Differs	750000 h	1600000 h
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	9.23 W	13.8 W
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentDiffers	2.8 A	3.98 A
Power consumption (standby)Known for one	0.57 W	Unknown — not stated by the source
Power consumption (idle)Known for one	6.39 W	Unknown — not stated by the source
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 shockDiffers	63 G	60 G
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Weight & dimensions1 differ
Width	101.8 mm	101.8 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
WeightDiffers	700 g	800 g

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.