Average Bench: 77.2% (256th of 885)

Based on 45,918 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 22.7% 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 35.9MB/s
Avg. Sequential Read Speed 474MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 33.7%. 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 40.7MB/s
Avg. 4K-64Thread Read Speed 176MB/s
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Average Bench

(Based on 45,918 samples)
Min Avg Max
372 Read 474 502
249 Write 316 351
196 Mixed 310 343
81.2% 367 MB/s
Min Avg Max
24.9 4K Read 35.9 44.6
32.1 4K Write 56.7 78.4
11.6 4K Mixed 19 24.3
109% 37.2 MB/s
Min Avg Max
30.2 DQ Read 176 360
47.1 DQ Write 145 237
12.4 DQ Mixed 40.7 68.2
63.1% 121 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
90GB free
Firmware: EXT0BB0Q Max speed: SATA 3.0 600 MB/s
NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 496
Write 282
Mixed 317
80% 365 MB/s
4K Read 39.8
4K Write 52.8
4K Mixed 22
116% 38.2 MB/s
DQ Read 234
DQ Write 129
DQ Mixed 58.5
76% 141 MB/s
79GB free
Firmware: EXT0BB0Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 508
Write 281
Mixed 308
81% 366 MB/s
4K Read 43.7
4K Write 73.6
4K Mixed 20.4
131% 45.9 MB/s
DQ Read 45
DQ Write 77.6
DQ Mixed 19.8
27% 47.4 MB/s
26GB free
Firmware: EXT0BB6Q Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 491
Write 330
Mixed 340
86% 387 MB/s
4K Read 40.3
4K Write 65.2
4K Mixed 19.2
120% 41.6 MB/s
DQ Read 42.7
DQ Write 71
DQ Mixed 19.1
25% 44.3 MB/s
45,918 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,693,496 SSDs tested.

 Prices

Approx. $95 @ launch in Jul '13
EbayUS $1709 mins
OutletPCUS $17716 hrs
AmazonUS $21634 secs
Send price feedback
Typical 840 Evo 120GB Builds (Compare 5,581 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: 60% - Good Total price: $962

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) February 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.

Poor (edit your comment) Add link

8 months ago.

Suffers from severe performance degradation.


Liked

1 month 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


Poor

8 months ago.

best performance for this price


Good

18 months ago.

Price vs Performance that drive is perfect


Good

9 months ago.

Super Fast and Price is exelent


Excellent

5 months ago.

my first samsung ssd. very good performance and price.


Poor

9 months ago.

Best ssd


Good

8 months ago.

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


Good

18 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.


Poor

21 months ago.

Best value ever!


Good

2 years ago.

Low price , higher access , more faster !


Excellent

3 years ago.

This SSD is perfect.


Excellent

3 years ago.

awesome ssd


Your
opinion?
885 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 $313Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $288Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $146
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $79G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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