Average Bench: 88.4% (297th of 1021)

Based on 73,597 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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Very good average bench

The Samsung 840 Evo 120GB averaged just 11.5% 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-64Thread Mixed IO Speed 154MB/s
Avg. 4K Random Read Speed 37.6MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 48.7%. This is a relatively wide range which indicates that the Samsung 840 Evo 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 129MB/s
Avg. Sequential Mixed IO Speed 302MB/s
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Average Bench

(Based on 73,597 samples)
Min Avg Max
354 Read 459 504
239 Write 397 487
198 Mixed 302 384
53.2 SusWrite 129 175
71.8% 322 MB/s
Min Avg Max
23.5 4K Read 37.6 46.3
32.9 4K Write 83 117
22 4K Mixed 44.3 54.8
158% 55 MB/s
Min Avg Max
167 DQ Read 325 381
97.8 DQ Write 286 361
53.2 DQ Mixed 154 180
157% 255 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
30GB free (System drive)
Firmware: EXT0AB0Q
SusWrite @10s intervals: 232 41 37 35 35 34 MB/s
Read 499
Write 400
Mixed 289
SusWrite 68.9
70% 314 MB/s
4K Read 43.9
4K Write 97.9
4K Mixed 51.5
184% 64.4 MB/s
DQ Read 375
DQ Write 344
DQ Mixed 168
178% 296 MB/s
52GB free (System drive)
Firmware: EXT0DB6Q
SusWrite @10s intervals: 219 65 60 69 70 75 MB/s
Read 488
Write 484
Mixed 310
SusWrite 93.1
77% 344 MB/s
4K Read 41.7
4K Write 105
4K Mixed 52.2
185% 66.2 MB/s
DQ Read 369
DQ Write 271
DQ Mixed 142
155% 261 MB/s
21GB free (System drive)
Firmware: EXT0BB6Q
SusWrite @10s intervals: 213 47 46 47 44 43 MB/s
Read 379
Write 357
Mixed 245
SusWrite 73.4
59% 264 MB/s
4K Read 29.4
4K Write 74.3
4K Mixed 37.6
132% 47.1 MB/s
DQ Read 377
DQ Write 345
DQ Mixed 177
183% 300 MB/s
73,597 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 26,406,143 SSDs tested.

 Prices

Approx. $95 @ launch in Jul '13
OutletPCUS $1382 years
EbayUS $2002 mins
AmazonUS $20014 mins
Send price feedback
Typical 840 Evo 120GB Builds (Compare 15,293 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 72%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 50%
Yacht

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

EDIT WITH CUSTOM PC BUILDER Value: 49% - Average Total price: $1,005

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.
  • - 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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) May 2020 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]

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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.

 Comments

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

Experience a brand new, faster performance...

Added 6 years ago.

Good (edit your comment) Add link

15 months ago.

Fast and Cheap SSD for a great price


Excellent

22 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

14 months ago.

best performance for this price


Good

3 years ago.

Price vs Performance that drive is perfect


Good

2 years ago.

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


Good

3 years ago.

Super Fast and Price is exelent


Excellent

2 years ago.

my first samsung ssd. very good performance and price.


Good

3 years 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

5 years ago.


Good

5 years ago.

Low price , higher access , more faster !


Excellent

7 months ago.

Had this in my system for 5 years now. It didnt lose any performance or gave me any errors. Its still a fast little OS SSD and is still supported via software from samsungs side.


Excellent

6 years ago.

This SSD is perfect.


Excellent

5 years ago.

awesome ssd


Your
opinion?
1021 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 i5-9400F $165Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $56
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $75SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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