SamsungMZ-77E250B
Kbg40zns128g

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

  

Release date ≈ Q1 2020.

Real World Speed
Performance profile from 4,496 user samples
4,001 User Benchmarks
Best Bench: 131% 229GB free
Worst Bench: 78% 165GB free (System drive)
Poor: 78% Great: 131%
SPEED RANK: 221st / 1058
495 User Benchmarks
Best Bench: 184% 65GB free (System drive)
Worst Bench: 67% 8GB free (System drive)
Poor: 67% Great: 184%
SPEED RANK: 171st / 1058
Effective Speed
Effective SSD Speed
106 % 126 % Faster effective speed.
+19%
Read
Avg. Sequential Read Speed
471 MB/s 860 MB/s Hugely faster read speed.
+83%
Write
Avg. Sequential Write Speed
411 MB/s 552 MB/s Much faster write speed.
+34%
4K Read
Avg. 4K Random Read Speed
38.8 MB/s 39.6 MB/s +2%
4K Write
Avg. 4K Random Write Speed
87.2 MB/s +3% 84.5 MB/s
Mixed
Avg. Sequential Mixed IO Speed
381 MB/s 592 MB/s Much faster mixed IO speed.
+55%
4K Mixed
Avg. 4K Random Mixed IO Speed
49.6 MB/s +3% 48.2 MB/s
SusWrite
Avg. Sustained Write Speed
336 MB/s Slightly faster sustained write speed.
+7%
313 MB/s
Read
Peak Sequential Read Speed
517 MB/s 1331 MB/s Hugely faster peak read speed.
+157%
Write
Peak Sequential Write Speed
492 MB/s 804 MB/s Much faster peak write speed.
+63%
4K Read
Peak 4K Random Read Speed
50.3 MB/s 57.1 MB/s Faster peak random read.
+14%
4K Write
Peak 4K Random Write Speed
122 MB/s 158 MB/s Faster peak random write.
+30%
Mixed
Peak Sequential Mixed IO Speed
459 MB/s 840 MB/s Hugely faster peak mixed IO speed.
+83%
4K Mixed
Peak 4K Random Mixed IO Speed
67.8 MB/s 74.2 MB/s Slightly faster peak random mixed IO.
+9%
SusWrite
Peak Sequential Sustained Write 60s Average
395 MB/s 409 MB/s +4%
Market Share
Based on 47,036,699 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.12 % Insanely higher market share.
+1,100%
0.01 %
User Rating
UBM User Rating
56 % More popular.
+12%
50 %
Age
Newest
7 Months Much more recent.
+65%
20+ Months
DQ Read
Peak 4K-64Thread Read Speed
389 MB/s 843 MB/s Hugely faster peak deep queue read.
+117%
DQ Write
Peak 4K-64Thread Write Speed
361 MB/s 686 MB/s Hugely faster peak deep queue write.
+90%
AS-SSD Total
AS-SSD Total Score
1,293 Pts 2,476 Pts Hugely stronger server IO.
+92%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
372 MB/s 481 MB/s Faster peak deep queue mixed IO.
+29%
ADQ Read
Avg. 4K-64Thread Read Speed
344 MB/s 589 MB/s Much faster deep queue read.
+71%
ADQ Write
Avg. 4K-64Thread Write Speed
298 MB/s 366 MB/s Faster deep queue write.
+23%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
285 MB/s 369 MB/s Faster deep queue mixed IO.
+29%
Capacity
Capacity
250GB 128GB
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light speed ssd [Feb '21 tester4678]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) September 2021 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 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.
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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