Product comparison · 2 internal solid state drives

Samsung 840 EVO vs Samsung SM843TN 480 GB 2.5" Serial ATA III MLC

Key differences

SSD capacity
- 840 EVO:120 GB
- SM843TN 480 GB 2.5" Serial ATA III MLC:480 GB
Read speed
- 840 EVO:540 MB/s
- SM843TN 480 GB 2.5" Serial ATA III MLC:500 MB/s
Write speed
- 840 EVO:410 MB/s
- SM843TN 480 GB 2.5" Serial ATA III MLC:400 MB/s
Width
- 840 EVO:69.8 mm
- SM843TN 480 GB 2.5" Serial ATA III MLC:70 mm
Product colour
- 840 EVO:Titanium
- SM843TN 480 GB 2.5" Serial ATA III MLC:Black

Differences highlightedShow differences only

Comparison of 840 EVO, SM843TN
25 specifications	A Samsung 840 EVO View product	B Samsung SM843TN 480 GB 2.5" Serial ATA III MLC Model SM843TN View product
Features3 differ
SSD capacityDiffers	120 GB	480 GB
Read speedDiffers	540 MB/s	500 MB/s
Write speedDiffers	410 MB/s	400 MB/s
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
LithographyKnown for one	Unknown — not stated by the source	21 nm
Weight & dimensions1 differ
WidthDiffers	69.8 mm	70 mm
WeightKnown for one	68 g	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 70 °C	Unknown — not stated by the source
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)Known for one	5 - 95%	Unknown — not stated by the source
Operating shockKnown for one	1500 G	Unknown — not stated by the source
Other features1 differ
Product colourDiffers	Titanium	Black
InternalKnown for one	Yes	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.