Product comparison · 2 internal solid state drives

Samsung 840 EVO vs Samsung PM841 128 GB mSATA Serial ATA

8specifications compared
4differ
4identical
17known for one product only

Key differences

SSD capacity
- 840 EVO:120 GB
- PM841 128 GB mSATA Serial ATA:128 GB
SSD form factor
- 840 EVO:2.5"
- PM841 128 GB mSATA Serial ATA:mSATA
Interface
- 840 EVO:Serial ATA III
- PM841 128 GB mSATA Serial ATA:Serial ATA
Product colour
- 840 EVO:Titanium
- PM841 128 GB mSATA Serial ATA:Green

Side by side

Differences highlightedShow differences only

Comparison of 840 EVO, PM841
25 specifications	A Samsung 840 EVO View product	B Samsung PM841 128 GB mSATA Serial ATA Model PM841 View product
Features3 differ
SSD capacityDiffers	120 GB	128 GB
SSD form factorDiffers	2.5"	mSATA
InterfaceDiffers	Serial ATA III	Serial ATA
Memory typeKnown for one	MLC	Unknown — not stated by the source
Data transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
Read speedKnown for one	540 MB/s	Unknown — not stated by the source
Write speedKnown for one	410 MB/s	Unknown — not stated by the source
Random read (4KB)Known for one	94000 IOPS	Unknown — not stated by the source
Random write (4KB)Known for one	35000 IOPS	Unknown — not stated by the source
Storage drive buffer sizeKnown for one	256 MB	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
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	69.8 mm	Unknown — not stated by the source
DepthKnown for one	100 mm	Unknown — not stated by the source
HeightKnown for one	7 mm	Unknown — not stated by the source
WeightKnown for one	68 g	Unknown — not stated by the source
Operational conditionsidentical
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
Other features1 differ
Product colourDiffers	Titanium	Green
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	3.3 V

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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