Average Bench: 92% (209th of 980)

Based on 45,534 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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Excellent average bench

The Samsung 840 Evo 120GB averaged just 8.0% 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 160MB/s
Avg. 4K Random Mixed IO Speed 46.4MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 Evo 120GB is 46.4%. 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 306MB/s
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Average Bench

(Based on 45,534 samples)
Min Avg Max
364 Read 462 504
303 Write 409 488
241 Mixed 306 383
57 SusWrite 130 176
72.9% 327 MB/s
Min Avg Max
26 4K Read 38.7 46.5
42 4K Write 90.9 120
29 4K Mixed 46.4 55.6
166% 58.7 MB/s
Min Avg Max
46.7 DQ Read 332 381
118 DQ Write 308 358
53.3 DQ Mixed 160 181
164% 267 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
38GB free (System drive)
Firmware: EXT0BB6Q
SusWrite @10s intervals: 236 48 43 46 50 51 MB/s
Read 499
Write 485
Mixed 303
SusWrite 79
76% 341 MB/s
4K Read 45.1
4K Write 107
4K Mixed 54.8
195% 69 MB/s
DQ Read 378
DQ Write 350
DQ Mixed 179
185% 302 MB/s
35GB free (System drive)
Firmware: EXT0BB6Q
SusWrite @10s intervals: 321 89 87 86 85 84 MB/s
Read 487
Write 466
Mixed 320
SusWrite 126
78% 350 MB/s
4K Read 37.6
4K Write 78.8
4K Mixed 46.5
158% 54.3 MB/s
DQ Read 372
DQ Write 349
DQ Mixed 170
180% 297 MB/s
45,534 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 11,409,630 SSDs tested.

 Prices

Approx. $95 @ launch in Jul '13
OutletPCUS $1388 months
EbayUS $15028 mins
AmazonUS $2903 months
Send price feedback
Typical 840 Evo 120GB Builds (Compare 8,469 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 60%
Gunboat
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 41%
Speed boat

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

EDIT WITH CUSTOM PC BUILDER Value: 65% - Good Total price: $1,025

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) January 2019 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 4 years ago.

Good (edit your comment) Add link

2 months ago.

Suffers from severe performance degradation.


Excellent

5 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

1 month ago.

best performance for this price


Good

2 years ago.

Price vs Performance that drive is perfect


Good

19 months ago.

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


Good

20 months ago.

Super Fast and Price is exelent


Excellent

16 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

4 years ago.

awesome ssd


Your
opinion?
980 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 $360Nvidia GTX 1070 $350Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $159Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $89
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $700Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Ultra Fit 32GB $12
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