Average Bench: 78.9% (268th of 929)

Based on 47,691 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 21.1% 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 36.6MB/s
Avg. Sequential Read Speed 477MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 32.6%. This is a relatively narrow range which indicates that the Samsung 840 Evo 120GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Mixed IO Speed 41.2MB/s
Avg. 4K-64Thread Read Speed 189MB/s
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Average Bench

(Based on 47,691 samples)
Min Avg Max
375 Read 477 503
254 Write 317 351
201 Mixed 313 345
81.6% 369 MB/s
Min Avg Max
23.9 4K Read 36.6 44.5
28.8 4K Write 59.3 79.3
13 4K Mixed 19.6 24.5
112% 38.5 MB/s
Min Avg Max
32.8 DQ Read 189 359
49.2 DQ Write 157 239
13.3 DQ Mixed 41.2 68.1
66.8% 129 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
11GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 494
Write 351
Mixed 334
87% 393 MB/s
4K Read 43.2
4K Write 76.7
4K Mixed 21
133% 47 MB/s
DQ Read 45.7
DQ Write 85.4
DQ Mixed 20.8
28% 50.6 MB/s
55GB free
Firmware: EXT0DB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 501
Write 352
Mixed 341
88% 398 MB/s
4K Read 40.1
4K Write 64.5
4K Mixed 22.3
124% 42.3 MB/s
DQ Read 40.2
DQ Write 60.3
DQ Mixed 17.8
23% 39.4 MB/s
39GB free
Firmware: EXT0BB0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 504
Write 277
Mixed 305
80% 362 MB/s
4K Read 39.6
4K Write 56.4
4K Mixed 18.1
113% 38 MB/s
DQ Read 40.8
DQ Write 60.7
DQ Mixed 17.8
23% 39.8 MB/s
19GB free
Firmware: EXT0 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 466
Write 278
Mixed 292
76% 345 MB/s
4K Read 35.1
4K Write 42.6
4K Mixed 18.4
99% 32 MB/s
DQ Read 201
DQ Write 126
DQ Mixed 53.8
70% 127 MB/s
47,691 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,167,327 SSDs tested.

 Prices

Approx. $95 @ launch in Jul '13
OutletPCUS $1381 month
EbayUS $1652 mins
AmazonUS $20519 mins
Send price feedback
Typical 840 Evo 120GB Builds (Compare 6,879 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 48%
Yacht
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 40%
Jet ski

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

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $930

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.

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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.
  • - 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) June 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.

 Comments

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

Experience a brand new, faster performance...

Added 4 years ago.

Excellent (edit your comment) Add link

1 month ago.

Suffers from severe performance degradation.


Liked

4 months ago.

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


Excellent

2 months ago.

best performance for this price


Good

22 months ago.

Price vs Performance that drive is perfect


Good

13 months ago.

Super Fast and Price is exelent


Good

12 months ago.

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


Excellent

9 months ago.

my first samsung ssd. very good performance and price.


Good

22 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.


Above average

3 years ago.


Good

3 years ago.

Low price , higher access , more faster !


Excellent

4 years ago.

This SSD is perfect.


Excellent

3 years ago.

awesome ssd


Your
opinion?
929 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
AMD Ryzen 5 1600 $170Nvidia GTX 1070 $440Samsung 850 Evo 250GB $104
Intel Core i7-8700K $317Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $123
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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