UserBenchmark: Adata SU720 vs Samsung 870 EVO

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SamsungMZ-77E4T0B

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Adata

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Real World Speed

Performance profile from 10,996 user samples

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9,454 User Benchmarks

Best Bench: 137% 3.5TB free
Worst Bench: 90% 1.5TB free

Poor: 90% Great: 137%

SPEED RANK: 195^th / 1072

1,542 User Benchmarks

Best Bench: 108% 870GB free (System drive)
Worst Bench: 47% 229GB free (System drive)

Poor: 47% Great: 108%

SPEED RANK: 474^th / 1072


Effective Speed Effective SSD Speed		117 %	Much faster effective speed. +44%		80.8 %


Read Avg. Sequential Read Speed	481 MB/s	Slightly faster read speed. +7%	451 MB/s
Write Avg. Sequential Write Speed	451 MB/s	Faster write speed. +28%	353 MB/s
4K Read Avg. 4K Random Read Speed	40.5 MB/s	Faster random read. +13%	35.7 MB/s
4K Write Avg. 4K Random Write Speed	90 MB/s	Hugely faster random write. +88%	47.8 MB/s
Mixed Avg. Sequential Mixed IO Speed	426 MB/s	Much faster mixed IO speed. +56%	273 MB/s
4K Mixed Avg. 4K Random Mixed IO Speed	53.6 MB/s	Much faster random mixed IO. +42%	37.7 MB/s
SusWrite Avg. Sustained Write Speed	445 MB/s	Hugely faster sustained write speed. +89%	236 MB/s


Read Peak Sequential Read Speed	517 MB/s	Slightly faster peak read speed. +7%	485 MB/s
Write Peak Sequential Write Speed	491 MB/s	+2%	481 MB/s
4K Read Peak 4K Random Read Speed	48.8 MB/s	Faster peak random read. +15%	42.6 MB/s
4K Write Peak 4K Random Write Speed	131 MB/s	Much faster peak random write. +50%	87.3 MB/s
Mixed Peak Sequential Mixed IO Speed	464 MB/s	Faster peak mixed IO speed. +24%	375 MB/s
4K Mixed Peak 4K Random Mixed IO Speed	68.1 MB/s	Much faster peak random mixed IO. +31%	51.8 MB/s
SusWrite Peak Sequential Sustained Write 60s Average	489 MB/s	+3%	475 MB/s

Market Share

Based on 75,648,303 SSDs tested

See market share leaders


Market Share Market Share (trailing 30 days)		0.14 %	Hugely higher market share. +180%		0.05 %
User Rating UBM User Rating		51 %	+2%		50 %


Age Newest	38+ Months	More recent. +16%	45+ Months
DQ Read Peak 4K-64Thread Read Speed	389 MB/s	Much faster peak deep queue read. +39%	279 MB/s
DQ Write Peak 4K-64Thread Write Speed	364 MB/s	Much faster peak deep queue write. +36%	268 MB/s
AS-SSD Total AS-SSD Total Score	1,301 Pts	Much stronger server IO. +33%	980 Pts
DQ Mixed Peak 4K-64Thread Mixed IO Speed	374 MB/s	Much faster peak deep queue mixed IO. +33%	282 MB/s
ADQ Read Avg. 4K-64Thread Read Speed	354 MB/s	Much faster deep queue read. +44%	246 MB/s
ADQ Write Avg. 4K-64Thread Write Speed	305 MB/s	Hugely faster deep queue write. +93%	158 MB/s
ADQ Mixed Avg. 4K-64Thread Mixed IO Speed	324 MB/s	Hugely faster deep queue mixed IO. +100%	162 MB/s


Capacity Capacity			4TB			1TB

There are high failure rates for the 4TB version of this drive. After moderate use the drive can develop bad sectors which block file reads. Scandisk does not detect the errors and the data blocks are not recoverable. There are widespread reports of this problem but Samsung have yet to issue a statement. ^{[Jul '23 SSDrivePro]}

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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.
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.

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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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
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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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How is the AS SSD total score calculated?

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CPU	GPU	SSD
Intel Core i5-13600K $275	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) $35	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