Average Bench: 164% (123rd of 1058)

Based on 1,098 user benchmarks.  Model: NVMe KBG40ZNS256G NVMe KIOXIA 256GB

Outstanding average bench

The Nvme KBG40ZNS256G KIOXIA 256GB averaged 64.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme KBG40ZNS256G KIOXIA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 583MB/s
Avg. 4K-64Thread Read Speed 825MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme KBG40ZNS256G KIOXIA 256GB is 119%. This is a particularly wide range which indicates that the Nvme KBG40ZNS256G KIOXIA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 465MB/s
Avg. 4K Random Write Speed 117MB/s
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Average Bench

(Based on 1,098 samples)
Min Avg Max
678 Read 1,084 1,554
336 Write 938 1,466
372 Mixed 921 1,312
214 SusWrite 465 579
191% 852 MB/s
Min Avg Max
27.5 4K Read 46.5 58.1
56.5 4K Write 117 184
32.2 4K Mixed 60.4 78.9
210% 74.6 MB/s
Min Avg Max
421 DQ Read 825 1,225
131 DQ Write 421 779
188 DQ Mixed 583 705
444% 610 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
190GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1131 747 401 405 404 399 MB/s
Read 1,535
Write 1,503
Mixed 1,358
SusWrite 581
279% 1,244 MB/s
4K Read 54.1
4K Write 136
4K Mixed 71.2
245% 87.1 MB/s
DQ Read 782
DQ Write 611
DQ Mixed 666
507% 687 MB/s
152GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1094 774 399 379 384 373 MB/s
Read 1,506
Write 1,469
Mixed 1,280
SusWrite 567
270% 1,206 MB/s
4K Read 44.4
4K Write 98.3
4K Mixed 58.5
194% 67.1 MB/s
DQ Read 918
DQ Write 682
DQ Mixed 692
546% 764 MB/s
135GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1055 819 391 383 382 386 MB/s
Read 1,482
Write 1,471
Mixed 1052
SusWrite 569
256% 1,144 MB/s
4K Read 43.2
4K Write 93.1
4K Mixed 58
189% 64.8 MB/s
DQ Read 869
DQ Write 666
DQ Mixed 679
532% 738 MB/s
171GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 766 669 503 393 404 400 MB/s
Read 1,145
Write 1050
Mixed 1,036
SusWrite 522
211% 938 MB/s
4K Read 55.4
4K Write 148
4K Mixed 75.2
259% 92.9 MB/s
DQ Read 784
DQ Write 376
DQ Mixed 677
476% 612 MB/s
134GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 747 742 474 405 402 405 MB/s
Read 978
Write 888
Mixed 934
SusWrite 529
187% 832 MB/s
4K Read 51.5
4K Write 131
4K Mixed 67.9
234% 83.3 MB/s
DQ Read 938
DQ Write 435
DQ Mixed 684
508% 685 MB/s
171GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 554 688 532 385 401 404 MB/s
Read 1,004
Write 942
Mixed 981
SusWrite 494
192% 855 MB/s
4K Read 51.1
4K Write 124
4K Mixed 61
221% 78.8 MB/s
DQ Read 932
DQ Write 396
DQ Mixed 634
477% 654 MB/s
168GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 526 593 540 432 355 351 MB/s
Read 878
Write 790
Mixed 694
SusWrite 466
159% 707 MB/s
4K Read 44.1
4K Write 148
4K Mixed 44
202% 78.8 MB/s
DQ Read 796
DQ Write 386
DQ Mixed 661
472% 614 MB/s
135GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 453 458 430 412 361 359 MB/s
Read 605
Write 417
Mixed 464
SusWrite 412
106% 475 MB/s
4K Read 40.9
4K Write 87.4
4K Mixed 54.2
178% 60.8 MB/s
DQ Read 837
DQ Write 413
DQ Mixed 641
472% 630 MB/s
1,098 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,291,893 SSDs tested.

Typical KBG40ZNS256G KIOXIA 256GB Builds (Compare 1,609 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 18%
Surfboard
Desktop
Desktop 82%
Aircraft carrier
Workstation
Workstation 16%
Surfboard

System: Dell Inspiron 3501

EDIT WITH CUSTOM PC BUILDER

Popular KBG40ZNS256G KIOXIA 256GB systems:

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.

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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.
  • - 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) 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.

 Comments

1058 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

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