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Adata

LEGEND 840 512GB

LEGEND 840 512GB
BENCHMARKS (349)
MKT (0%)
BUILDS
(0)

Effective Speed -72%Effective Speed -72%Average Score -57%Read -84%, Write -69%, 4K Read -21%, 4K Write -9%, Mixed -52%, 4K Mixed -99%, SusWrite -68%Peak Score -101%Read -115%, Write -71%, 4K Read -118%, 4K Write -25%, Mixed -83%, 4K Mixed -223%, SusWrite -75%Value & Sentiment -2,702%User Rating -37%, Market Share -5,367%Nice To Haves -333%DQ Read -96%, DQ Write -35%, DQ Mixed -1,092%, ADQ Read -430%, ADQ Write -31%, ADQ Mixed -828%, Age -80%, AS-SSD Total -71%

Average Bench: 317% (33^rd of 1080)

Based on 349 user benchmarks. Model: ADATA LEGEND 840

Poor: 188%Average: 317% Great: 407%

Popular builds with this SSD

Outstanding average bench

The Adata LEGEND 840 512GB averaged 217.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Adata LEGEND 840 512GB near the top of the comparison list.

Strengths

Avg. Sequential Write Speed 2,764MB/s

Avg. Sequential Mixed IO Speed 2,126MB/s

See where your SSD ranks →

Terrible consistency

The range of scores (95th - 5th percentile) for the Adata LEGEND 840 512GB is 219%. This is a particularly wide range which indicates that the Adata LEGEND 840 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 323MB/s

Avg. 4K Random Mixed IO Speed 55.5MB/s

Average Bench

(Based on 349 samples)

Rank 33317%

Min	Avg	Max
1,219	Read 2,275	2,761
1,184	Write 2,764	3,769
1,119	Mixed 2,126	2,550
721	SusWrite 1,873	2,613
510% 2,259 MB/s

Min	Avg	Max
45.2	4K Read 73.6	87.9
79.7	4K Write 191	302
37.8	4K Mixed 55.5	67.8
284% 107 MB/s

Min	Avg	Max
47.7	DQ Read 323	1,182
390	DQ Write 957	1,410
140	DQ Mixed 160	176
260% 480 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

ROU-User, 4 days ago.

477GB free

Firmware: 1.2.4.M

SusWrite @10s intervals: 3627 3613 3582 3512 1030 982 MB/s

427% Outstanding

Write 3,800

Mixed 2,619

SusWrite 2,724

675% 2,984 MB/s

4K Read 93.8

4K Write 294

4K Mixed 69.8

387% 152 MB/s

DQ Read 52.8

DQ Write 1,547

DQ Mixed 169

320% 590 MB/s

ROU-User, 8 days ago.

477GB free

Firmware: 1.2.4.M

SusWrite @10s intervals: 3422 3573 3580 3571 1033 977 MB/s

418% Outstanding

Write 3,708

Mixed 2,536

SusWrite 2,692

661% 2,924 MB/s

4K Read 88.1

4K Write 288

4K Mixed 66.4

371% 147 MB/s

DQ Read 65.6

DQ Write 1,491

DQ Mixed 169

314% 575 MB/s

NLD-User, 10 days ago.

327GB free (System drive)

Firmware: 1.2.3.P

SusWrite @10s intervals: 2408 2321 2556 2157 2540 1100 MB/s

371% Outstanding

Write 3,126

Mixed 2,332

SusWrite 2,180

579% 2,566 MB/s

4K Read 73

4K Write 231

4K Mixed 51.8

299% 119 MB/s

DQ Read 676

DQ Write 1,381

DQ Mixed 167

372% 741 MB/s

NLD-User, 11 days ago.

327GB free (System drive)

Firmware: 1.2.3.P

SusWrite @10s intervals: 3076 3136 3092 3089 1011 307 MB/s

353% Outstanding

Write 3,294

Mixed 2,458

SusWrite 2,285

599% 2,652 MB/s

4K Read 64.4

4K Write 226

4K Mixed 49

280% 113 MB/s

DQ Read 47.2

DQ Write 1,248

DQ Mixed 165

273% 487 MB/s

NLD-User, 11 days ago.

328GB free (System drive)

Firmware: 1.2.3.P

SusWrite @10s intervals: 2744 2821 2986 2324 732 517 MB/s

344% Outstanding

Write 3,313

Mixed 2,456

SusWrite 2,021

589% 2,611 MB/s

4K Read 74.9

4K Write 224

4K Mixed 48

294% 116 MB/s

DQ Read 47

DQ Write 1,263

DQ Mixed 143

264% 484 MB/s

349 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,583,289 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 LEGEND 840 512GB Builds (Compare 897 builds) See popular component choices, score breakdowns and rankings

Gaming 17%

Surfboard

Desktop 88%

Aircraft carrier

Workstation 17%

Surfboard

Motherboard: Intel HM570

CPU
0000IntelBench 91%, 992 samples	629x
0000IntelBench 88%, 204 samples	150x
0000IntelBench 82%, 51 samples	41x

GPU
UHD GraphicsIntelBench 7%, 53,008 samples	179x
RTX 3070Nvidia $450Bench 148%, 619,642 samples	66x
RTX 3060Nvidia $220Bench 100%, 447,556 samples	42x

SSD
LEGEND 840 512GBAdataBench 317%, 349 samples	1x

RAM
Vengeance LPX DDR4 3200 C16 2x16GBCorsair $50Bench 85%, 86,372 samples	29x
VMA45UG-MEC1U2AW2 2x8GBAsgardBench 89%, 1,096 samples	28x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair $40Bench 85%, 653,654 samples	21x

EDIT WITH CUSTOM PC BUILDER

Value: 277% - Outstanding

Total price: $50

Popular LEGEND 840 512GB compatible motherboards:

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.

UserBenchmark of the month

Gaming

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ProGaming

CPU

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USB

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) November 2024 SSD Rankings

Welcome to our 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.

1080 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?

How is the AS SSD read score calculated?

How is the AS SSD total score calculated?

ALL FAQs »

CPU	GPU	SSD
Intel Core i5-12600K $164	Nvidia RTX 4060 $280	WD Black SN850X M.2 2TB $130
Intel Core i5-13600K $210	Nvidia RTX 4060-Ti $389	WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111	Nvidia RTX 4070 $500	Crucial T700 M.2 4TB $389

Adata

LEGEND 840 512GB

Average Bench: 317% (33^rd of 1080)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

Motherboard: Intel HM570

Popular LEGEND 840 512GB compatible motherboards:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Adata

LEGEND 840 512GB

Average Bench: 317% (33rd of 1080)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

Motherboard: Intel HM570

Popular LEGEND 840 512GB compatible motherboards:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 317% (33^rd of 1080)