Average Bench: 96% (259th of 1058)

Based on 205,398 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]

Excellent average bench

The Samsung 840 Evo 250GB averaged just 3.9% 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.


Avg. 4K-64Thread Mixed IO Speed 199MB/s
Avg. 4K Random Mixed IO Speed 48.2MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 250GB is 56.2%. This is a relatively wide range which indicates that the Samsung 840 Evo 250GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 196MB/s
Avg. Sequential Mixed IO Speed 346MB/s

Average Bench

(Based on 205,398 samples)
Min Avg Max
364 Read 469 507
260 Write 394 487
253 Mixed 346 420
52.9 SusWrite 196 297
78.6% 351 MB/s
Min Avg Max
26.5 4K Read 39.1 45.7
39 4K Write 85.7 115
27.2 4K Mixed 48.2 58.6
166% 57.7 MB/s
Min Avg Max
160 DQ Read 327 384
86.9 DQ Write 288 362
59.5 DQ Mixed 199 237
179% 271 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
108GB free
Firmware: EXT0DB6Q
SusWrite @10s intervals: 372 283 283 282 283 282 MB/s
Read 505
Write 308
Mixed 405
SusWrite 297
85% 379 MB/s
4K Read 45.4
4K Write 112
4K Mixed 58.1
203% 71.9 MB/s
DQ Read 382
DQ Write 361
DQ Mixed 234
213% 326 MB/s
161GB free
Firmware: EXT0DB6Q
SusWrite @10s intervals: 373 276 275 182 65 59 MB/s
Read 503
Write 306
Mixed 358
SusWrite 205
76% 343 MB/s
4K Read 44.3
4K Write 107
4K Mixed 57.2
197% 69.6 MB/s
DQ Read 382
DQ Write 362
DQ Mixed 235
214% 326 MB/s
162GB free (System drive)
Firmware: EXT0BB6Q
SusWrite @10s intervals: 390 273 268 245 275 275 MB/s
Read 455
Write 436
Mixed 351
SusWrite 288
86% 382 MB/s
4K Read 38.2
4K Write 90.7
4K Mixed 49.1
169% 59.3 MB/s
DQ Read 375
DQ Write 337
DQ Mixed 227
206% 313 MB/s
68GB free (System drive)
Firmware: EXT0CB6Q
SusWrite @10s intervals: 61 48 43 43 39 45 MB/s
Read 495
Write 458
Mixed 413
SusWrite 46.3
79% 353 MB/s
4K Read 40.2
4K Write 92
4K Mixed 50.8
175% 61 MB/s
DQ Read 378
DQ Write 242
DQ Mixed 101
132% 240 MB/s
205,398 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,108,375 SSDs tested.


MSRP ≈ $127 @ launch in Jul '13
EbayUS $9012 mins
AmazonUS $1505 months
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Typical 840 Evo 250GB Builds (Compare 7,092 builds) See popular component choices, score breakdowns and rankings.
Gaming 63%
Desktop 83%
Aircraft carrier
Workstation 49%

Motherboard: MSI Z87-G45 GAMING (MS-7821) - $242

EDIT WITH CUSTOM PC BUILDER Value: 54% - Above average Total price: $937

Popular 840 Evo 250GB compatible motherboards:

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

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) September 2021 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC

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

Added 8 years ago.

Excellent (edit your comment) Add link

30 days ago.

Been a beast for me since I bought it with no hickups or performance issues whatsoever. Obviously it can't compete with M.2 NVMe performance but they're a different class of storage so they're not comparable.

Review  www.userbenchmark.com/...


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


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


3 years ago.



26 days ago.

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


5 years ago.


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


7 months ago.

I am still using this SSD even though not to have V-Nand memories, also better write performance. Finally it has a good price/quality rate.


2 years ago.

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


4 years ago.

1000 Cycles (MLC) low life duration


4 years ago.

very good comparing to my old WD Black


3 years ago.


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


4 years ago.

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


7 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


3 years ago.

Ideal for my Origin library + RAPID mode!!


20 months ago.

I acquired this SSD in 2016, now in 2020 it still gives excellent performance, although it is no longer for sale.


7 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.


7 years ago.

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

1058 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.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $28Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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