Average Bench: 79.3% (197th of 850)

Based on 26,000 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 20.7% 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 37.6MB/s
Avg. Sequential Read Speed 478MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 35.6%. 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 43.3MB/s
Avg. 4K-64Thread Write Speed 153MB/s
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Average Bench

(Based on 26,000 samples)
Min Avg Max
384 Read 478 501
245 Write 315 352
190 Mixed 310 345
81.3% 367 MB/s
Min Avg Max
25.9 4K Read 37.6 45.6
29.5 4K Write 59.9 84
11.9 4K Mixed 19.8 25.2
114% 39.1 MB/s
Min Avg Max
31.9 DQ Read 190 367
47.5 DQ Write 153 239
13.9 DQ Mixed 43.3 68.5
67.2% 129 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
111GB free
Firmware: EXT0AB0Q Max speed: SATA 3.0 600 MB/s
NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 482
Write 267
Mixed 310
78% 353 MB/s
4K Read 33.4
4K Write 64.5
4K Mixed 21.8
113% 39.9 MB/s
DQ Read 310
DQ Write 216
DQ Mixed 66
102% 197 MB/s
38GB free
Firmware: EXT0DB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 480
Write 332
Mixed 329
84% 380 MB/s
4K Read 34.9
4K Write 44.1
4K Mixed 16.4
97% 31.8 MB/s
DQ Read 37.8
DQ Write 114
DQ Mixed 16.2
30% 55.8 MB/s
19GB free
Firmware: EXT0BB0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 487
Write 280
Mixed 311
79% 359 MB/s
4K Read 38.6
4K Write 61.4
4K Mixed 16
111% 38.7 MB/s
DQ Read 29.2
DQ Write 70
DQ Mixed 17.7
23% 39 MB/s
26,000 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,833,001 SSDs tested.

 Prices

AmazonUS $102.891 month ago.
EbayUS $159.9914 mins ago.
OutletPCUS $182.846 hrs ago.
Send price feedback
Typical 840 Evo 120GB Builds (Compare 3,742 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 47%
Yacht
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 39%
Jet ski

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

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $953

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) May 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

22 days ago.

Suffers from severe performance degradation.


Above average

2 years ago.


Good

3 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

8 months ago.

Price vs Performance that drive is perfect


Good

21 days ago.

Super Fast and Price is exelent


Poor

20 days ago.

good speed 0 fails.


Good

2 months ago.

best performance for this price


Poor

3 months ago.

nice


Poor

16 days ago.

Best ssd


Poor

26 days ago.

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


Good

9 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

9 months ago.

great


Poor

5 months ago.

fast..


Good

10 months ago.

excellent


Poor

11 months ago.

Best value ever!


Good

2 years ago.

Low price , higher access , more faster !


Excellent

3 years ago.

This SSD is perfect.


Excellent

2 years ago.

awesome ssd


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850 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 $368Samsung 850 Evo 250GB $102
Intel Core i5-7600K $240AMD RX 480 $210Samsung 850 Pro 256GB $127
AMD Ryzen 7 1700 $300Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $167
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $136SanDisk Ultra Fit 32GB $13
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