Product comparison · 2 internal solid state drives

HP 2UL81AA internal solid state drive vs Samsung 990 SSD PCIe

17specifications compared
15differ
2identical
19known for one product only

Key differences

The Samsung 990 SSD PCIe has 1 TB more SSD capacity than the HP 2UL81AA internal solid state drive (2 TB vs 1 TB). The Samsung 990 SSD PCIe has 6,680 MB/s more read speed than the HP 2UL81AA internal solid state drive (7250 MB/s vs 570 MB/s). The Samsung 990 SSD PCIe has 5,925 MB/s more write speed than the HP 2UL81AA internal solid state drive (6450 MB/s vs 525 MB/s). Only the Samsung 990 SSD PCIe has NVMe. Only the Samsung 990 SSD PCIe has hardware encryption.

SSD capacity
- 2UL81AA internal solid state drive:1 TB
- 990 SSD PCIe:2 TB
SSD form factor
- 2UL81AA internal solid state drive:2.5"
- 990 SSD PCIe:M.2
Interface
- 2UL81AA internal solid state drive:Serial ATA III
- 990 SSD PCIe:PCI Express 4.0
NVMe
- 2UL81AA internal solid state drive:No
- 990 SSD PCIe:Yes
Component for
- 2UL81AA internal solid state drive:Notebook/All-In-One
- 990 SSD PCIe:PC
Hardware encryption
- 2UL81AA internal solid state drive:No
- 990 SSD PCIe:Yes
Read speed
- 2UL81AA internal solid state drive:570 MB/s
- 990 SSD PCIe:7250 MB/s
Write speed
- 2UL81AA internal solid state drive:525 MB/s
- 990 SSD PCIe:6450 MB/s

Side by side

Differences highlightedShow differences only

Comparison of 2UL81AA, 990
36 specifications	A HP 2UL81AA internal solid state drive Model 2UL81AA View product	B Samsung 990 SSD PCIe Model 990 View product
Features11 differ
SSD capacityDiffers	1 TB	2 TB
SSD form factorDiffers	2.5"	M.2
InterfaceDiffers	Serial ATA III	PCI Express 4.0
NVMeDiffers	No	Yes
NVMe versionKnown for one	Unknown — not stated by the source	2.0
Memory typeKnown for one	Unknown — not stated by the source	V-NAND
Component forDiffers	Notebook/All-In-One	PC
Hardware encryptionDiffers	No	Yes
Security algorithmsKnown for one	Unknown — not stated by the source	256-bit AES, TCG Opal 2.0
M.2 SSD sizeKnown for one	Unknown — not stated by the source	2280 (22 x 80 mm)
Read speedDiffers	570 MB/s	7250 MB/s
Write speedDiffers	525 MB/s	6450 MB/s
Random read (4KB)Differs	95 IOPS	850000 IOPS
Random write (4KB)Differs	105 IOPS	1200000 IOPS
PCI Express interface data lanesKnown for one	Unknown — not stated by the source	x4
DevSlp (device sleep) support	Yes	Yes
PCI Express CEM revisionKnown for one	Unknown — not stated by the source	4.0
S.M.A.R.T. supportKnown for one	Unknown — not stated by the source	Yes
TRIM supportKnown for one	Unknown — not stated by the source	Yes
Mean time between failures (MTBF)Differs	2000000 h	1500000 h
TBW ratingKnown for one	500	Unknown — not stated by the source
CertificationKnown for one	CE, CB, FCC, cTUVus, KCC, BSMI, VCCI, RoHS, RCM	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	3.7 V	3.3 V
Power consumption (read)Known for one	Unknown — not stated by the source	4.3 W
Power consumption (write)Known for one	Unknown — not stated by the source	3.8 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.055 W
Power consumption DevSlp (device sleep)Known for one	Unknown — not stated by the source	3 mW
Weight & dimensions3 differ
WidthDiffers	698 mm	80.2 mm
DepthDiffers	67 mm	2.38 mm
HeightDiffers	100 mm	22.1 mm
WeightKnown for one	50 g	Unknown — not stated by the source
Packaging dataidentical
Package typeKnown for one	Unknown — not stated by the source	Box
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Operating shockKnown for one	Unknown — not stated by the source	1500 G
Storage temperature (T-T)Known for one	-40 - 85 °C	Unknown — not stated by the source
Vibration resistanceKnown for one	3.1 G	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.

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