Product comparison · 2 internal solid state drives

Samsung PM1633 1.92 TB 2.5" SAS TLC vs Samsung PM951 128 GB M.2 PCI Express 3.0

6specifications compared
6differ
0identical
21known for one product only

Key differences

SSD capacity
- PM1633 1.92 TB 2.5" SAS TLC:1.92 TB
- PM951 128 GB M.2 PCI Express 3.0:128 GB
SSD form factor
- PM1633 1.92 TB 2.5" SAS TLC:2.5"
- PM951 128 GB M.2 PCI Express 3.0:M.2
Interface
- PM1633 1.92 TB 2.5" SAS TLC:SAS
- PM951 128 GB M.2 PCI Express 3.0:PCI Express 3.0
Read speed
- PM1633 1.92 TB 2.5" SAS TLC:1350 MB/s
- PM951 128 GB M.2 PCI Express 3.0:600 MB/s
Write speed
- PM1633 1.92 TB 2.5" SAS TLC:750 MB/s
- PM951 128 GB M.2 PCI Express 3.0:150 MB/s
Product colour
- PM1633 1.92 TB 2.5" SAS TLC:Black
- PM951 128 GB M.2 PCI Express 3.0:Green

Side by side

Differences highlightedShow differences only

Comparison of PM1633, PM951
27 specifications	A Samsung PM1633 1.92 TB 2.5" SAS TLC Model PM1633 View product	B Samsung PM951 128 GB M.2 PCI Express 3.0 Model PM951 View product
Features5 differ
SSD capacityDiffers	1.92 TB	128 GB
SSD form factorDiffers	2.5"	M.2
InterfaceDiffers	SAS	PCI Express 3.0
Memory typeKnown for one	TLC	Unknown — not stated by the source
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Data transfer rateKnown for one	12 Gbit/s	Unknown — not stated by the source
Read speedDiffers	1350 MB/s	600 MB/s
Write speedDiffers	750 MB/s	150 MB/s
Random read (4KB)Known for one	190000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	37000 IOPS	Unknown — not stated by the source
S.M.A.R.T. supportKnown for one	Yes	Unknown — not stated by the source
Uncorrectable Bit Error Rate (UBER)Known for one	< 1 per 10^17 bits read	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	2000000 h	Unknown — not stated by the source
SSD usage tagKnown for one	Data center	Unknown — not stated by the source
PCI Express interface data lanesKnown for one	Unknown — not stated by the source	x4
Weight & dimensionsidentical
WidthKnown for one	70 mm	Unknown — not stated by the source
DepthKnown for one	100 mm	Unknown — not stated by the source
HeightKnown for one	15 mm	Unknown — not stated by the source
WeightKnown for one	140 g	Unknown — not stated by the source
Other features1 differ
Product colourDiffers	Black	Green
NAND controllerKnown for one	V-NAND	Unknown — not stated by the source
SSD endurance ratingKnown for one	1 DWPD	Unknown — not stated by the source
Sequential read/writeKnown for one	Yes	Unknown — not stated by the source
InternalKnown for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 70 °C
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating shockKnown for one	Unknown — not stated by the source	1500 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.

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