Average Bench: 60.1% (495th of 853)

Based on 8,258 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 39.8% 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 24.3MB/s
Avg. 4K Random Write Speed 64.5MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 250GB is 37.7%. 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 22.9MB/s
Avg. Sequential Mixed IO Speed 161MB/s
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Average Bench

(Based on 8,258 samples)
Min Avg Max
325 Read 452 513
45.8 Write 167 248
75.4 Mixed 161 258
56.6% 260 MB/s
Min Avg Max
17.8 4K Read 24.3 30.3
36.3 4K Write 64.5 102
9.47 4K Mixed 11.6 13.6
85.9% 33.5 MB/s
Min Avg Max
22 DQ Read 192 362
47.4 DQ Write 132 213
10.2 DQ Mixed 22.9 31.8
54.7% 116 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
201GB free
Firmware: DXT0AB0Q Max speed: SATA 3.0 600 MB/s
NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 495
Write 243
Mixed 195
68% 311 MB/s
4K Read 27.6
4K Write 105
4K Mixed 13.7
115% 48.6 MB/s
DQ Read 350
DQ Write 207
DQ Mixed 30.5
89% 196 MB/s
71GB free
Firmware: DXT07B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 494
Write 102
Mixed 136
52% 244 MB/s
4K Read 29.6
4K Write 77.2
4K Mixed 12.1
101% 39.6 MB/s
DQ Read 357
DQ Write 86.9
DQ Mixed 30.2
72% 158 MB/s
72GB free
Firmware: DXT08B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 326
Write 84.5
Mixed 99.6
37% 170 MB/s
4K Read 22.9
4K Write 51.8
4K Mixed 12.1
78% 28.9 MB/s
DQ Read 213
DQ Write 110
DQ Mixed 26.9
56% 117 MB/s
33GB free
Firmware: DXT08B0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 381
Write 63.7
Mixed 108
40% 184 MB/s
4K Read 25.2
4K Write 42.5
4K Mixed 11.3
75% 26.3 MB/s
DQ Read 29.6
DQ Write 121
DQ Mixed 28.1
35% 59.6 MB/s
8,258 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,328,095 SSDs tested.

 Prices

AmazonUS $199.993 mins ago.
EbayUS $199.9922 mins ago.
OutletPCUS $207.9315 hrs ago.
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Typical 840 250GB Builds (Compare 7,026 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 - $260

EDIT WITH CUSTOM PC BUILDER Value: 58% - Above average Total price: $1,313

Popular 840 250GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

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Solid State Drive Rankings (Price vs Performance) July 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

3 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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853 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $309Nvidia GTX 1070 $390Samsung 850 Evo 250GB $96
AMD Ryzen 7 1700 $291AMD RX 480 $379Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $33Samsung 850 Evo 500GB $23
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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