Product comparison · 2 internal hard drives

Dell 1.2TB 2.5" SAS vs Dell 1TB 3.5" 7200rpm SATA

12specifications compared
6differ
6identical
6known for one product only

Key differences

HDD capacity
- 1.2TB 2.5" SAS:1.2 TB
- 1TB 3.5" 7200rpm SATA:1 TB
HDD speed
- 1.2TB 2.5" SAS:10000 RPM
- 1TB 3.5" 7200rpm SATA:7200 RPM
HDD size
- 1.2TB 2.5" SAS:2.5"
- 1TB 3.5" 7200rpm SATA:3.5"
Interface
- 1.2TB 2.5" SAS:SAS
- 1TB 3.5" 7200rpm SATA:Serial ATA II
Operating voltage
- 1.2TB 2.5" SAS:5 V
- 1TB 3.5" 7200rpm SATA:5 / 12 V
Data transfer rate
- 1.2TB 2.5" SAS:6 Gbit/s
- 1TB 3.5" 7200rpm SATA:3 Gbit/s

Side by side

Differences highlightedShow differences only

Comparison of 1.2TB 2.5" SAS, 1TB 3.5" 7200rpm SATA
18 specifications	A Dell 1.2TB 2.5" SAS View product	B Dell 1TB 3.5" 7200rpm SATA View product
Features4 differ
HDD capacityDiffers	1.2 TB	1 TB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA II
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	32 MB
Access timeKnown for one	Unknown — not stated by the source	8.9 ms
Average latencyKnown for one	Unknown — not stated by the source	4.17 ms
Native Command Queuing (NCQ)Known for one	Unknown — not stated by the source	Yes
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Other features1 differ
Data transfer rateDiffers	6 Gbit/s	3 Gbit/s
Compatible productsKnown for one	Unknown — not stated by the source	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

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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