Product comparison · 2 internal hard drives

Lenovo 81Y9791 internal hard drive vs Lenovo 90Y8945 internal hard drive

6specifications compared
5differ
1identical
3known for one product only

Key differences

The Lenovo 90Y8945 internal hard drive has 7,800 RPM more HDD speed than the Lenovo 81Y9791 internal hard drive (15000 RPM vs 7200 RPM). The Lenovo 81Y9791 internal hard drive has 1" more HDD size than the Lenovo 90Y8945 internal hard drive (3.5" vs 2.5"). HDD capacity: 1 TB on the Lenovo 81Y9791 internal hard drive, 146 GB on the Lenovo 90Y8945 internal hard drive. Interface: NL-SATA on the Lenovo 81Y9791 internal hard drive, SAS on the Lenovo 90Y8945 internal hard drive. Operating voltage: 5 / 12 V on the Lenovo 81Y9791 internal hard drive, 5 V on the Lenovo 90Y8945 internal hard drive.

HDD capacity
- 81Y9791 internal hard drive:1 TB
- 90Y8945 internal hard drive:146 GB
HDD speed
- 81Y9791 internal hard drive:7200 RPM
- 90Y8945 internal hard drive:15000 RPM
HDD size
- 81Y9791 internal hard drive:3.5"
- 90Y8945 internal hard drive:2.5"
Interface
- 81Y9791 internal hard drive:NL-SATA
- 90Y8945 internal hard drive:SAS
Operating voltage
- 81Y9791 internal hard drive:5 / 12 V
- 90Y8945 internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of 81Y9791, 90Y8945
9 specifications	A Lenovo 81Y9791 internal hard drive Model 81Y9791 View product	B Lenovo 90Y8945 internal hard drive Model 90Y8945 View product
Features4 differ
HDD capacityDiffers	1 TB	146 GB
HDD speedDiffers	7200 RPM	15000 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	NL-SATA	SAS
Hot-swapKnown 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 / 12 V	5 V
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)

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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