Average Bench: 78.6% - 199th / 836

Based on 18,152 user benchmarks.  Models: Samsung SSD 840 EVO 120GB, Samsung SSD 840 EVO 1, Samsung SSD 840 EVO 120G, Samsung SSD 840 EVO

The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. [Aug '14 SSDrivePro]

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Good average bench

The Samsung 840 Evo 120GB averaged 21.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung 840 Evo 120GB near the top of the comparison list.

Strengths

Avg. 4K Random Read Speed 36.7MB/s
Avg. Sequential Read Speed 472MB/s
See where your SSD ranks →

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 38.2%. This is a relatively wide range which indicates that the Samsung 840 Evo 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 42.5MB/s
Avg. 4K-64Thread Write Speed 156MB/s
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Average Bench

(Based on 18,152 samples)
Min Avg Max
370 Read 472 501
246 Write 314 351
190 Mixed 311 342
80.9% 366 MB/s
Min Avg Max
24.7 4K Read 36.7 45.9
27.9 4K Write 58.3 84.9
12 4K Mixed 19.7 25.1
112% 38.2 MB/s
Min Avg Max
29.5 DQ Read 198 367
47.4 DQ Write 156 240
12.1 DQ Mixed 42.5 68.3
68.5% 132 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
24GB free
Firmware: EXT0DB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 495
Write 351
Mixed 340
88% 396 MB/s
4K Read 44
4K Write 74.3
4K Mixed 24.6
138% 47.6 MB/s
DQ Read 370
DQ Write 245
DQ Mixed 68.7
116% 228 MB/s
17GB free
Firmware: EXT0 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 409
Write 322
Mixed 327
78% 353 MB/s
4K Read 39.8
4K Write 51.9
4K Mixed 20.7
114% 37.5 MB/s
DQ Read 240
DQ Write 141
DQ Mixed 59.3
79% 147 MB/s
4GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 350
Write 311
Mixed 268
69% 310 MB/s
4K Read 31.6
4K Write 41.8
4K Mixed 16.6
91% 30 MB/s
DQ Read 35.7
DQ Write 100
DQ Mixed 15.4
27% 50.4 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,122,423 SSDs tested.

 Prices

AmazonUS $99.841 month ago.
OutletPCUS $152.849 hrs ago.
EbayUS $159.9922 secs ago.
Send price feedback
Typical 840 Evo 120GB Builds (Compare 2,890 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 41%
Speed boat

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

EDIT WITH CUSTOM PC BUILDER Value: 73% - Very good Total price: $904

Popular 840 Evo 120GB 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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) February 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.

Experience a brand new, faster performance...

Added 3 years ago.

Good (edit your comment) Add link

10 days ago.

Suffers from severe performance degradation.


Above average

2 years ago.


Good

21 days ago.

EXELLENT

Comment 

Good for general purpose use - best compromise between Price and performance. I have bought over 20 of these to retrofit into Laptops and desktop pc's to give a performance boost especially with a clean Windows 8.1 install. Makes a cheap Celeron Laptop fly like a new core i5 laptop with a standard electro-mechanical Hdd. PC World will not sell computers with SSD's in because if people savvy the huge performance boot you get with an SSD they will just buy a cheap sub £200 laptop and clone the disk to an SSD. Dell hike their prices to fit a 250GB SSD when you buy a new PC by £350 - WHAT A RIP OFF, No wonder they are going out of business. The 250GB and 500GB Samsung SSD's are equally good - recommended in fact. I have bought all of these in some quantity.—Oct '14


Good

5 months ago.

Price vs Performance that drive is perfect


Good

16 days ago.

Super Fast and Price is exelent


Poor

1 month ago.

good speed 0 fails.


Poor

1 month ago.

nice


Good

2 days ago.

best performance for this price


Good

5 months ago.

Best ssd


Good

2 months ago.

i love this ssd, still fast on my old laptop with SATA 2.


Good

6 months ago.

Works really great. I've had it for 3 months already and had no troubles with it. It's fast and cheap. My 4 year old HP DV7-3180us feels like new with it.


Good

6 months ago.

great


Poor

2 months ago.

fast..


Good

7 months ago.

excellent


Poor

8 months ago.

Best value ever!


Good

23 months ago.

Low price , higher access , more faster !


Excellent

2 years ago.

This SSD is perfect.


Excellent

2 years ago.

awesome ssd


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836 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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Intel Core i5-7600K $230Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $169
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