Average Bench: 61% (489th of 863)

Based on 9,828 user benchmarks.  Model: Samsung SSD 840 Series

The Samsung 840 is the budget version of the 840 Pro, the main difference between the hardware on the two drives is the type of flash memory used. The cheaper 840 uses TLC NAND which is cheaper than the MLC found in the Pro version of this drive. The performance hit as a result of the cheaper TLC memory is approximately 30%. The 840 delvers both average real world speeds (435 MB/s) and average enterprise speeds (AS-SSD Total Score 920). The relative weak spots in this drives performance profile are its write ability, where it scores just 254 MB/s in the sequential write test. The upside to the lost performance over the Pro version is a significant reduction in price which leaves this drive an average value for money proposition at its current price of £135. There are, however, better value drives to be had elsewhere including Samsungs own newly released EVO which effectively supersedes the 840. [Aug '13 SSDrivePro]

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Above average average bench

The Samsung 840 250GB averaged 38.9% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Read Speed 24MB/s
Avg. 4K Random Write Speed 66MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 250GB is 38.6%. This is a relatively wide range which indicates that the Samsung 840 250GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 23.3MB/s
Avg. Sequential Mixed IO Speed 163MB/s
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Average Bench

(Based on 9,828 samples)
Min Avg Max
325 Read 454 512
51.8 Write 171 248
77.6 Mixed 163 255
57.2% 263 MB/s
Min Avg Max
17.6 4K Read 24 30.3
36.9 4K Write 66 101
9.33 4K Mixed 11.7 13.7
86.3% 33.9 MB/s
Min Avg Max
21.8 DQ Read 207 362
50.1 DQ Write 139 215
9.66 DQ Mixed 23.3 32
57.8% 123 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
123GB free
Firmware: DXT06B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 506
Write 211
Mixed 225
69% 314 MB/s
4K Read 18.1
4K Write 41.9
4K Mixed 11.2
64% 23.8 MB/s
DQ Read 235
DQ Write 166
DQ Mixed 31
69% 144 MB/s
123GB free
Firmware: DXT06B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 504
Write 180
Mixed 128
59% 271 MB/s
4K Read 17.2
4K Write 43.4
4K Mixed 11.5
64% 24 MB/s
DQ Read 199
DQ Write 146
DQ Mixed 30.1
61% 125 MB/s
197GB free
Firmware: DXT06B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 476
Write 227
Mixed 245
69% 316 MB/s
4K Read 18
4K Write 43.1
4K Mixed 11.7
65% 24.3 MB/s
DQ Read 113
DQ Write 117
DQ Mixed 28.4
45% 86 MB/s
9,828 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 4,488,887 SSDs tested.

 Prices

AmazonUS $186.091 min ago.
OutletPCUS $207.9322 hrs ago.
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Typical 840 250GB Builds (Compare 6,243 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 59%
Gunboat
Desktop
Desktop 62%
Destroyer
Workstation
Workstation 38%
Jet ski

Motherboard: Asrock Z77 Extreme4 - $340

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $1,202

Popular 840 250GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) November 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

 Comments

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode TLC.

The single best upgrade for your PC...

Added 4 years ago.

Very poor

4 years ago.

Review  hexus.net/...

Image  img.hexus.net/...
AS SSD Benchmark Speed Test

AS SSD Benchmark Speed Test

Review  www.hardocp.com/...

Image  www.hardocp.com/...
Dec '12 AS SSD Benchmark Test Score

Dec '12 AS SSD Benchmark Test Score

Review  thessdreview.com/...

Image  www.thessdreview.com/...
Oct '12 AS SSD Benchmark Speed Test

Oct '12 AS SSD Benchmark Speed Test


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863 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i7-7700K $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $240AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $140
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $192SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $10
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