Samsung

840 120GB

840 120GB
BENCHMARKS (1,438)
MKT (0%)
BUILDS
(0)

Effective Speed -38%Effective Speed -38%Average Score -55%Read -9%, Write -53%, 4K Read -11%, 4K Write -31%, Mixed -61%, 4K Mixed -46%, SusWrite -174%Peak Score -23%Read -2%, Write -5%, 4K Read 5%, 4K Write -10%, Mixed -18%, 4K Mixed -8%, SusWrite -124%Value & Sentiment User Rating -14%, Market Share -∞%Nice To Haves -40%DQ Read 4%, DQ Write -3%, DQ Mixed -85%, ADQ Read -14%, ADQ Write -42%, ADQ Mixed -150%, Age -32%, AS-SSD Total -0%

Average Bench: 71.1% (650^th of 1072)

Based on 1,438 user benchmarks. Model: Samsung SSD 840

Poor: 43%Average: 71.1% Great: 102%

Popular builds with this SSD

Good average bench

The Samsung 840 120GB averaged 28.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 104MB/s

Avg. 4K Random Read Speed 30.8MB/s

See where your SSD ranks →

Below average consistency

The range of scores (95th - 5th percentile) for the Samsung 840 120GB is 58.8%. This is a relatively wide range which indicates that the Samsung 840 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 108MB/s

Avg. Sequential Mixed IO Speed 223MB/s

Average Bench

(Based on 1,438 samples)

Rank 65071.1%

Min	Avg	Max
313	Read 420	495
45	Write 265	464
69.2	Mixed 223	360
31.5	SusWrite 108	173
56.3% 254 MB/s

Min	Avg	Max
18.5	4K Read 30.8	45.2
23.6	4K Write 66.9	111
12.1	4K Mixed 30.9	54.2
122% 42.9 MB/s

Min	Avg	Max
106	DQ Read 287	380
42.3	DQ Write 203	348
32.5	DQ Mixed 104	179
116% 198 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

PRT-User, 1 month ago.

94GB free

Firmware: EXT0

SusWrite @10s intervals: 324 144 144 144 144 144 MB/s

87.5% Excellent

Write 407

Mixed 395

SusWrite 174

82% 366 MB/s

4K Read 34.5

4K Write 56.1

4K Mixed 38.3

131% 43 MB/s

DQ Read 384

DQ Write 365

DQ Mixed 151

175% 300 MB/s

1,438 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,663,013 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU

GPU

SSD

HDD

RAM

MBD

Typical 840 120GB Builds (Compare 1,137 builds) See popular component choices, score breakdowns and rankings

Gaming 2%

Tree trunk

Desktop 55%

Yacht

Workstation 2%

Tree trunk

System: HP 280 G1 MT

CPU
Core i3-4160Intel $79Bench 55%, 48,506 samples	293x
Core i5-4590SIntel $79Bench 67%, 11,598 samples	253x
Core i7-4790Intel $135Bench 71%, 255,027 samples	146x

GPU
HD 4400 (Desktop 1.15 GHz)IntelBench 3%, 64,721 samples	220x
HD 4600 (Desktop 1.25 GHz)Intel $15Bench 3%, 230,189 samples	220x
HD Graphics (G4 Pentium/Celeron 1.05/1.15 GHz)IntelBench 2%, 43,454 samples	84x

SSD
840 120GBSamsungBench 71%, 1,438 samples	1x

RAM
M378B5173EB0-YK0 1x4GBSamsungBench 27%, 3,229 samples	65x
HMT351U6CFR8C-PB 2x4GBHynixBench 53%, 17,809 samples	35x
M378B5173EB0-YK0 2x4GBSamsungBench 50%, 4,222 samples	31x

EDIT WITH CUSTOM PC BUILDER

Value: 78% - Very good

Total price: $79

Popular 840 120GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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Solid State Drive Rankings (Price vs Performance) April 2024 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.
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Fastest real world speed - Real World Speed measures performance for typical consumers.

1072 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

Storage Devices FAQ

What is sustained sequential write speed?

What’s the difference between SLC, MLC and TLC?

What is 3D XPoint and how fast is it?

What’s the difference between SATA, PCIe and NVMe?

What’s the difference between NAND and V-NAND?

What is sequential write speed?

What is sequential read speed?

What is incompressible data?

What is queue depth?

Solid State Drives

What is the SSD value for money rating?

What is 4K 64 thread write speed?

Can CPU power saving states (C1,C2,C3) impact SSD speed?

What is the effective SSD speed index?

How is the AS SSD write score calculated?

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ALL FAQs »

CPU	GPU	SSD
Intel Core i5-13600K $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

Samsung

840 120GB

Average Bench: 71.1% (650^th of 1072)

Popular builds with this SSD

Good average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: HP 280 G1 MT

Popular 840 120GB systems:

UserBenchmark of the month

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Best User Rated

Samsung

840 120GB

Average Bench: 71.1% (650th of 1072)

Popular builds with this SSD

Good average bench

Strengths

Below average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: HP 280 G1 MT

Popular 840 120GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Average Bench: 71.1% (650^th of 1072)