Product comparison · 2 internal hard drives

Dell 1TB 3.5" 7200rpm SATA vs Dell 900GB 2.5" 10K SAS 6G

Key differences

HDD capacity
- 1TB 3.5" 7200rpm SATA:1 TB
- 900GB 2.5" 10K SAS 6G:900 GB
HDD speed
- 1TB 3.5" 7200rpm SATA:7200 RPM
- 900GB 2.5" 10K SAS 6G:10000 RPM
HDD size
- 1TB 3.5" 7200rpm SATA:3.5"
- 900GB 2.5" 10K SAS 6G:2.5"
Interface
- 1TB 3.5" 7200rpm SATA:Serial ATA II
- 900GB 2.5" 10K SAS 6G:SAS
Operating voltage
- 1TB 3.5" 7200rpm SATA:5 / 12 V
- 900GB 2.5" 10K SAS 6G:5 V
Storage temperature (T-T)
- 1TB 3.5" 7200rpm SATA:-40 - 65 °C
- 900GB 2.5" 10K SAS 6G:-40 - 60 °C
Data transfer rate
- 1TB 3.5" 7200rpm SATA:3 Gbit/s
- 900GB 2.5" 10K SAS 6G:6 Gbit/s

Differences highlightedShow differences only

Comparison of 1TB 3.5" 7200rpm SATA, 900GB 2.5" 10K SAS 6G
18 specifications	A Dell 1TB 3.5" 7200rpm SATA View product	B Dell 900GB 2.5" 10K SAS 6G View product
Features4 differ
HDD capacityDiffers	1 TB	900 GB
HDD speedDiffers	7200 RPM	10000 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	SAS
Storage drive buffer sizeKnown for one	32 MB	Unknown — not stated by the source
Access timeKnown for one	8.9 ms	Unknown — not stated by the source
Average latencyKnown for one	4.17 ms	Unknown — not stated by the source
Native Command Queuing (NCQ)Known for one	Yes	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions1 differ
Storage temperature (T-T)Differs	-40 - 65 °C	-40 - 60 °C
Other features1 differ
Data transfer rateDiffers	3 Gbit/s	6 Gbit/s
Compatible productsKnown for one	Alienware Area - 51 Alienware Aurora Alienware Aurora R2 Inspiron 400 Inspiron 530 Inspiron 530s Inspiron 531 Inspiron 531s Inspiron 537 Inspiron 537s Inspiron 545 Inspiron 545s Inspiron 546 Inspiron 546s Inspiron 560 Inspiron 560s Inspiron 570 Inspiron 580 Inspiron 580s Inspiron One 20 (2020) Inspi	Unknown — not stated by the source

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.