Product comparison · 2 internal solid state drives

Samsung 650 Series vs Samsung SM951 128 GB M.2 PCI Express 3.0

13specifications compared
10differ
3identical
13known for one product only

Key differences

SSD capacity
- 650 Series:120 GB
- SM951 128 GB M.2 PCI Express 3.0:128 GB
SSD form factor
- 650 Series:2.5"
- SM951 128 GB M.2 PCI Express 3.0:M.2
Interface
- 650 Series:Serial ATA III
- SM951 128 GB M.2 PCI Express 3.0:PCI Express 3.0
Read speed
- 650 Series:540 MB/s
- SM951 128 GB M.2 PCI Express 3.0:2000 MB/s
Write speed
- 650 Series:450 MB/s
- SM951 128 GB M.2 PCI Express 3.0:650 MB/s
Width
- 650 Series:100 mm
- SM951 128 GB M.2 PCI Express 3.0:22 mm
Depth
- 650 Series:6.8 mm
- SM951 128 GB M.2 PCI Express 3.0:80 mm
Height
- 650 Series:69.8 mm
- SM951 128 GB M.2 PCI Express 3.0:4 mm

Side by side

Differences highlightedShow differences only

Comparison of 650 Series, SM951
26 specifications	A Samsung 650 Series View product	B Samsung SM951 128 GB M.2 PCI Express 3.0 Model SM951 View product
Features5 differ
SSD capacityDiffers	120 GB	128 GB
SSD form factorDiffers	2.5"	M.2
InterfaceDiffers	Serial ATA III	PCI Express 3.0
Data transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
Read speedDiffers	540 MB/s	2000 MB/s
Write speedDiffers	450 MB/s	650 MB/s
Random read (4KB)Known for one	23000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	9000 IOPS	Unknown — not stated by the source
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
CertificationKnown for one	CE, BSMI, KCC, VCCI, C-Tick, FCC, IC, UL, TUV, CB	Unknown — not stated by the source
PCI Express interface data lanesKnown for one	Unknown — not stated by the source	x4
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Power consumption (idle)Known for one	0.05 W	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	100 mm	22 mm
DepthDiffers	6.8 mm	80 mm
HeightDiffers	69.8 mm	4 mm
WeightDiffers	42 g	10 g
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 shock	1500 G	1500 G
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Other features1 differ
Product colourDiffers	Black	Green
Internal	Yes	Yes
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717070	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.

More internal solid state drive comparisons

All internal solid state drive comparisons