Product comparison · 2 internal solid state drives

Samsung 950 PRO vs Samsung PM951 128 GB M.2 PCI Express 3.0

11specifications compared
5differ
6identical
20known for one product only

Key differences

SSD capacity
- 950 PRO:256 GB
- PM951 128 GB M.2 PCI Express 3.0:128 GB
Interface
- 950 PRO:PCI Express
- PM951 128 GB M.2 PCI Express 3.0:PCI Express 3.0
Read speed
- 950 PRO:2200 MB/s
- PM951 128 GB M.2 PCI Express 3.0:600 MB/s
Write speed
- 950 PRO:900 MB/s
- PM951 128 GB M.2 PCI Express 3.0:150 MB/s
Product colour
- 950 PRO:Black
- PM951 128 GB M.2 PCI Express 3.0:Green

Side by side

Differences highlightedShow differences only

Comparison of 950 PRO, PM951
31 specifications	A Samsung 950 PRO View product	B Samsung PM951 128 GB M.2 PCI Express 3.0 Model PM951 View product
Features4 differ
SSD capacityDiffers	256 GB	128 GB
SSD form factor	M.2	M.2
InterfaceDiffers	PCI Express	PCI Express 3.0
Security algorithmsKnown for one	256-bit AES	Unknown — not stated by the source
Data transfer rateKnown for one	32 Gbit/s	Unknown — not stated by the source
Read speedDiffers	2200 MB/s	600 MB/s
Write speedDiffers	900 MB/s	150 MB/s
Random read (4KB)Known for one	270000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	85000 IOPS	Unknown — not stated by the source
Storage drive buffer sizeKnown for one	512 MB	Unknown — not stated by the source
PCI Express interface data lanes	x4	x4
S.M.A.R.T. supportKnown for one	Yes	Unknown — not stated by the source
TRIM supportKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1500000 h	Unknown — not stated by the source
TBW ratingKnown for one	200	Unknown — not stated by the source
Poweridentical
Power consumption (read)Known for one	5.1 W	Unknown — not stated by the source
Power consumption (write)Known for one	5.1 W	Unknown — not stated by the source
Power consumption (sleep)Known for one	0.0025 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.07 W	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	80.2 mm	Unknown — not stated by the source
DepthKnown for one	22.1 mm	Unknown — not stated by the source
HeightKnown for one	2.38 mm	Unknown — not stated by the source
WeightKnown for one	10 g	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Storage temperature (T-T)Known for one	-40 - 85 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating vibrationKnown for one	20 G	Unknown — not stated by the source
Operating shock	1500 G	1500 G
Other features1 differ
Product colourDiffers	Black	Green
Internal	Yes	Yes

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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