Average Bench: 91.1% (173rd of 956)

Based on 37,689 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]

ADVERTISEMENT

Excellent average bench

The Samsung 840 Evo 120GB averaged just 8.8% 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 156MB/s
Avg. 4K Random Mixed IO Speed 46.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 41.6%. 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 130MB/s
Avg. Sequential Mixed IO Speed 301MB/s
ADVERTISEMENT

Average Bench

(Based on 37,689 samples)
Min Avg Max
357 Read 459 503
284 Write 414 484
229 Mixed 301 370
59.7 SusWrite 130 177
72.8% 326 MB/s
Min Avg Max
27 4K Read 38.5 46.4
50.7 4K Write 90 122
30.1 4K Mixed 46.2 55.7
165% 58.2 MB/s
Min Avg Max
45.1 DQ Read 323 381
110 DQ Write 296 353
52.5 DQ Mixed 156 180
159% 258 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
33GB free
Firmware: EXT0DB6Q
SusWrite @10s intervals: 292 143 144 145 145 145 MB/s
Read 510
Write 337
Mixed 358
SusWrite 169
77% 344 MB/s
4K Read 45.5
4K Write 114
4K Mixed 55.6
200% 71.5 MB/s
DQ Read 320
DQ Write 344
DQ Mixed 102
140% 256 MB/s
60GB free (System drive)
Firmware: EXT0DB6Q
SusWrite @10s intervals: 296 139 144 145 146 146 MB/s
Read 488
Write 455
Mixed 326
SusWrite 169
80% 359 MB/s
4K Read 40
4K Write 81.5
4K Mixed 46.9
164% 56.1 MB/s
DQ Read 266
DQ Write 244
DQ Mixed 150
141% 220 MB/s
37,689 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,956,775 SSDs tested.

 Prices

Approx. $95 @ launch in Jul '13
OutletPCUS $1383 months
AmazonUS $1491 month
EbayUS $16527 mins
Send price feedback
Typical 840 Evo 120GB Builds (Compare 7,542 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 48%
Yacht
Desktop
Desktop 67%
Battle cruiser
Workstation
Workstation 40%
Jet ski

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

EDIT WITH CUSTOM PC BUILDER Value: 63% - 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.

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) August 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 - 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 4 years ago.

Excellent (edit your comment) Add link

11 days ago.

Suffers from severe performance degradation.


Excellent

13 days 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

4 months ago.

best performance for this price


Good

23 months ago.

Price vs Performance that drive is perfect


Good

15 months ago.

Super Fast and Price is exelent


Good

14 months ago.

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


Excellent

11 months ago.

my first samsung ssd. very good performance and price.


Good

2 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

4 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?
956 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 i7-8700K $330Nvidia GTX 1070 $380Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $120
Intel Core i5-8600K $240AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $901SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $175SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback