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AdataASX6000NP-256GT-C
SamsungMZ-77E250B
▲ 5126 ▼

Release date ≈ Q4 2017.

VS
▲ 57214 ▼

Controller: Samsung MKX. Memory: Samsung 128 layer TLC V-NAND. Release date: Q1 2021.

Effective Speed 
+18%
Real World Speed
Performance profile from 22,819 user samples
Benchmark your SSD here
8,737 User Benchmarks
Best Bench: 153% 50GB free (System drive)
Worst Bench: 66% 30GB free (System drive)
Poor: 66% Great: 153%
SPEED RANK: 192nd / 1072
14,082 User Benchmarks
Best Bench: 128% 0GB free
Worst Bench: 67% 59GB free (System drive)
Poor: 67% Great: 128%
SPEED RANK: 251st / 1072
Effective Speed
Effective SSD Speed 		119 % Faster effective speed.
+18% 		101 %
Average Score 
+28%
Read
Avg. Sequential Read Speed 		579 MB/s Faster read speed.
+26% 		461 MB/s
Write
Avg. Sequential Write Speed 		619 MB/s Much faster write speed.
+57% 		395 MB/s
4K Read
Avg. 4K Random Read Speed 		36.9 MB/s +1% 36.4 MB/s
4K Write
Avg. 4K Random Write Speed 		101 MB/s Faster random write.
+23% 		81.9 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		521 MB/s Much faster mixed IO speed.
+43% 		365 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		44.4 MB/s 45.9 MB/s +3%
SusWrite
Avg. Sustained Write Speed 		482 MB/s Much faster sustained write speed.
+50% 		322 MB/s
Peak Score 
+32%
Read
Peak Sequential Read Speed 		757 MB/s Much faster peak read speed.
+47% 		514 MB/s
Write
Peak Sequential Write Speed 		758 MB/s Much faster peak write speed.
+56% 		486 MB/s
4K Read
Peak 4K Random Read Speed 		42.1 MB/s 49.1 MB/s Faster peak random read.
+17%
4K Write
Peak 4K Random Write Speed 		146 MB/s Faster peak random write.
+19% 		123 MB/s
Mixed
Peak Sequential Mixed IO Speed 		632 MB/s Much faster peak mixed IO speed.
+38% 		457 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		57.2 MB/s 66.1 MB/s Faster peak random mixed IO.
+16%
SusWrite
Peak Sequential Sustained Write 60s Average 		767 MB/s Hugely faster peak sustained write speed.
+94% 		396 MB/s
Value & Sentiment 
+359%
Market Share
Based on 75,710,384 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.01 % 0.15 % Insanely higher market share.
+1,400%
Value
Value For Money 		31.2 % 31.6 % +1%
User Rating
UBM User Rating 		51 % 57 % More popular.
+12%
Price
Price (score) 		$40 $31 Cheaper.
+23%
Nice To Haves 
+4%
Age
Newest 		76+ Months 39 Months Much more recent.
+49%
DQ Read
Peak 4K-64Thread Read Speed 		385 MB/s 389 MB/s +1%
DQ Write
Peak 4K-64Thread Write Speed 		406 MB/s Faster peak deep queue write.
+12% 		362 MB/s
AS-SSD Total
AS-SSD Total Score 		1,403 Pts Slightly stronger server IO.
+9% 		1291 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		307 MB/s 372 MB/s Faster peak deep queue mixed IO.
+21%
ADQ Read
Avg. 4K-64Thread Read Speed 		356 MB/s +2% 349 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		359 MB/s Faster deep queue write.
+20% 		299 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		270 MB/s 280 MB/s +4%
Specifications 
Capacity
Capacity 		256GB 250GB
User Builds 
8,737
14,082
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

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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]

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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.
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 Desktop ProGaming

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

 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 »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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