Average Bench: 79.3% (200th of 853)

Based on 40,037 user benchmarks.  Models: Samsung SSD 840 EVO 250GB, Samsung SSD 840 EVO, Samsung SSD 840 EVO 250G

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]

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Good average bench

The Samsung 840 Evo 250GB averaged 20.7% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung 840 Evo 250GB near the top of the comparison list.

Strengths

Avg. 4K Random Read Speed 36.4MB/s
Avg. Sequential Read Speed 481MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 250GB is 38.7%. This is a relatively wide range which indicates that the Samsung 840 Evo 250GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 46.9MB/s
Avg. 4K-64Thread Read Speed 181MB/s
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Average Bench

(Based on 40,037 samples)
Min Avg Max
367 Read 481 510
214 Write 317 351
219 Mixed 327 358
83.1% 375 MB/s
Min Avg Max
23.8 4K Read 36.4 45.8
31.8 4K Write 59.5 85
12.6 4K Mixed 20.7 27.1
113% 38.9 MB/s
Min Avg Max
29.5 DQ Read 181 368
48.2 DQ Write 154 240
13.1 DQ Mixed 46.9 84.1
68% 127 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
39GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 509
Write 350
Mixed 355
90% 405 MB/s
4K Read 46.3
4K Write 84.8
4K Mixed 28.6
152% 53.2 MB/s
DQ Read 367
DQ Write 233
DQ Mixed 82.9
120% 228 MB/s
128GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 497
Write 349
Mixed 333
87% 393 MB/s
4K Read 37.1
4K Write 52.1
4K Mixed 14.7
103% 34.7 MB/s
DQ Read 167
DQ Write 152
DQ Mixed 44.9
65% 121 MB/s
43GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 483
Write 319
Mixed 325
83% 376 MB/s
4K Read 32.2
4K Write 40.4
4K Mixed 15.5
90% 29.4 MB/s
DQ Read 33.6
DQ Write 83.8
DQ Mixed 15.8
24% 44.4 MB/s
98GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 373
Write 256
Mixed 258
66% 296 MB/s
4K Read 30.5
4K Write 36.8
4K Mixed 16.9
87% 28.1 MB/s
DQ Read 36.3
DQ Write 56.2
DQ Mixed 16
21% 36.2 MB/s
40,037 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,281,939 SSDs tested.

 Prices

AmazonUS $138.8020 mins ago.
OutletPCUS $146.645 hrs ago.
EbayUS $156.796 mins ago.
Send price feedback
Typical 840 Evo 250GB Builds (Compare 5,032 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 76%
Battleship
Workstation
Workstation 57%
Gunboat

Motherboard: Asus MAXIMUS VII HERO

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $967

Popular 840 Evo 250GB compatible motherboards:

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

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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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 MEX. Memory: Samsung 19nm Toggle Mode TLC.

It's time for your pc to evlove...

Added 3 years ago.

Liked (edit your comment) Add link

26 days ago.

Review  www.userbenchmark.com/...

Comment 

Speedy and smooth. Excellent load time of OS (from restart close to restart desktop (including typing in my password) is roughly 8 - 10 seconds....every time.—Apr '15

Comment 

works great in Samsung ATIV8, i7, 16gb mem. boots super fast under12 sec, restart under 11sec. owned since it was released. —Sep '15


Poor

26 days ago.

I am very happy with this SSD and fully recommended it.


Poor

1 month ago.

Only RAPID mode with RAID support is missing. Alone or in RAID, best SSD price/quality.


Liked

11 months ago.

Comment 

Pretty fast and easy to use under Windows and just a little bit higher price tag than other products —Sep '14


Good

6 months ago.

1000 Cycles (MLC) low life duration


Poor

29 days ago.

very good speed....


Good

2 years ago.

Review  www.custompcreview.com/...

Image  i2.wp.com/...
Jul '13 AS SSD Benchmark Speed Test Score

Jul '13 AS SSD Benchmark Speed Test Score


Good

29 days ago.

very good comparing to my old WD Black


Liked

10 months ago.

Comment 

This SSD is really Fast!.. nice improve over 840. it's quite good as 840 pro!—Sep '14


Poor

4 months ago.

Good value for the money.


Good

3 months ago.

Can someone explain why my ssd does 4102 mb/s write and 2684 mb/s read ??


Poor

19 months ago.

Works well


Excellent

2 years ago.

Super Fast Drive.....


Excellent

3 years ago.

Had installed one of these bad boys for my Father's Workstation PC. He loves the SSD to death! It makes the entire system snappy and responsive to every click, and application you run! He is very impressed by his new build altogether, but noticeably, with how the jump from a HDD to an SSD made such a difference in speed. A+ drive right here.


Excellent

3 years ago.

I got up to 4000MB/s, is this a bug or a result of RAPID?


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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 $295Nvidia GTX 1070 $390Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $268AMD RX 480 $260Samsung 850 Pro 256GB $136
Intel Core i5-7600K $238Nvidia GTX 1060-6GB $239Samsung 850 Evo 500GB $159
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $83Corsair Vengeance LPX DDR4 3000 C15 2x8GB $132SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $44HyperX Fury DDR4 2133 C14 2x8GB $143SanDisk Ultra Fit 32GB $13
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