Average Bench: 155% (138th of 1058)

Based on 686 user benchmarks.  Model: NVMe KBG40ZNS256G NVMe KIOXIA 256GB

Outstanding average bench

The Nvme KBG40ZNS256G KIOXIA 256GB averaged 55.3% 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 577MB/s
Avg. 4K-64Thread Read Speed 790MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme KBG40ZNS256G KIOXIA 256GB is 107%. 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 466MB/s
Avg. 4K Random Write Speed 102MB/s
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Average Bench

(Based on 686 samples)
Min Avg Max
684 Read 1,072 1,527
421 Write 933 1,458
433 Mixed 916 1,298
284 SusWrite 466 579
190% 847 MB/s
Min Avg Max
24.4 4K Read 42.3 55.4
49.8 4K Write 102 166
31.5 4K Mixed 53.4 74.9
186% 65.9 MB/s
Min Avg Max
283 DQ Read 790 1,094
126 DQ Write 401 751
185 DQ Mixed 577 709
433% 589 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
152GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 690 1039 388 389 409 407 MB/s
Read 1,524
Write 1,453
Mixed 1,266
SusWrite 554
269% 1,199 MB/s
4K Read 55.9
4K Write 160
4K Mixed 76.7
268% 97.5 MB/s
DQ Read 1,010
DQ Write 756
DQ Mixed 674
561% 813 MB/s
178GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 754 793 491 389 397 390 MB/s
Read 1,014
Write 933
Mixed 1,032
SusWrite 536
198% 879 MB/s
4K Read 55.4
4K Write 150
4K Mixed 74.8
259% 93.5 MB/s
DQ Read 1,082
DQ Write 426
DQ Mixed 674
520% 727 MB/s
172GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 573 550 446 419 365 360 MB/s
Read 1,021
Write 837
Mixed 883
SusWrite 452
179% 798 MB/s
4K Read 39.4
4K Write 63
4K Mixed 50.2
157% 50.9 MB/s
DQ Read 967
DQ Write 360
DQ Mixed 642
480% 656 MB/s
172GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 621 679 562 369 349 354 MB/s
Read 861
Write 659
Mixed 892
SusWrite 489
163% 725 MB/s
4K Read 36.7
4K Write 75
4K Mixed 44.7
153% 52.1 MB/s
DQ Read 954
DQ Write 364
DQ Mixed 571
446% 630 MB/s
138GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 634 661 493 323 350 339 MB/s
Read 926
Write 796
Mixed 936
SusWrite 467
175% 781 MB/s
4K Read 39.4
4K Write 74.1
4K Mixed 48.4
161% 54 MB/s
DQ Read 796
DQ Write 246
DQ Mixed 449
350% 497 MB/s
686 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,278,097 SSDs tested.

Typical KBG40ZNS256G KIOXIA 256GB Builds (Compare 889 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 19%
Surfboard
Desktop
Desktop 84%
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

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  • - CPU tests include: integer, floating and string.
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Solid State Drive Rankings (Price vs Performance) June 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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Intel Core i7-11700K $380Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
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Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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