Average Bench: 90% (316th of 1058)

Based on 109,276 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]

Excellent average bench

The Samsung 840 Evo 120GB averaged just 9.9% 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 155MB/s
Avg. 4K Random Read Speed 38.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 47.6%. 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 135MB/s
Avg. Sequential Mixed IO Speed 310MB/s
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Average Bench

(Based on 109,276 samples)
Min Avg Max
360 Read 463 505
207 Write 390 487
224 Mixed 310 388
56.2 SusWrite 135 178
72.4% 325 MB/s
Min Avg Max
26.4 4K Read 38.7 45.9
39.6 4K Write 84 113
26.3 4K Mixed 45.1 55.1
161% 55.9 MB/s
Min Avg Max
42.7 DQ Read 323 382
96.4 DQ Write 291 362
47.7 DQ Mixed 155 180
158% 256 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
79GB free (System drive)
Firmware: EXT0BB0Q
SusWrite @10s intervals: 265 130 132 134 133 134 MB/s
Read 506
Write 397
Mixed 302
SusWrite 155
76% 340 MB/s
4K Read 45.9
4K Write 109
4K Mixed 53.7
196% 69.7 MB/s
DQ Read 376
DQ Write 348
DQ Mixed 168
179% 297 MB/s
80GB free
Firmware: EXT0DB6Q
SusWrite @10s intervals: 302 24 21 24 23 23 MB/s
Read 501
Write 483
Mixed 320
SusWrite 69.5
77% 344 MB/s
4K Read 44.6
4K Write 102
4K Mixed 52
188% 66.2 MB/s
DQ Read 376
DQ Write 341
DQ Mixed 170
179% 296 MB/s
109,276 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,209,475 SSDs tested.

 Prices

MSRP ≈ $95 @ launch in Jul '13
AmazonUS $1858 mins
EbayUS $20021 mins
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Typical 840 Evo 120GB Builds (Compare 7,111 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 63%
Destroyer
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 49%
Yacht

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

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $1,032

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.
  • - 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]

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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 7 years ago.

Good (edit your comment) Add link

15 months ago.

Fast and Cheap SSD for a great price


Excellent

3 years 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 years ago.

best performance for this price


Good

5 years ago.

Price vs Performance that drive is perfect


Good

4 years ago.

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


Good

4 years ago.

Super Fast and Price is exelent


Good

5 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.


Excellent

4 years ago.

my first samsung ssd. very good performance and price.


Above average

7 years ago.


Good

6 years ago.

Low price , higher access , more faster !


Excellent

23 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

7 years ago.

This SSD is perfect.


Excellent

6 years ago.

awesome ssd


Your
opinion?
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.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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