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Kbg40zns256g

NVMe KIOXIA 256GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 151% (140th of 1058)

Based on 10,276 user benchmarks.  Model: KBG40ZNS256G NVMe KIOXIA 256GB
Poor: 91%Average: 151% Great: 214%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns256g NVMe KIOXIA 256GB averaged 50.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg40zns256g NVMe KIOXIA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 531MB/s
Avg. 4K-64Thread Read Speed 817MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns256g NVMe KIOXIA 256GB is 122%. This is a particularly wide range which indicates that the Kbg40zns256g NVMe KIOXIA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 441MB/s
Avg. 4K Random Write Speed 96.9MB/s
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Average Bench

(Based on 10,276 samples)
Rank 140151%
Min Avg Max
410 Read 970 1,513
126 Write 835 1,452
248 Mixed 840 1,274
84.4 SusWrite 441 586
173% 771 MB/s
Min Avg Max
20.3 4K Read 43.4 57.6
38.9 4K Write 96.9 158
27.8 4K Mixed 54.5 77.6
187% 64.9 MB/s
Min Avg Max
304 DQ Read 817 1,323
118 DQ Write 413 789
107 DQ Mixed 531 712
417% 587 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
96GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1136 448 390 398 391 397 MB/s
223% Outstanding
Read 1,556
Write 1,438
Mixed 1,286
SusWrite 527
269% 1,202 MB/s
4K Read 57.7
4K Write 152
4K Mixed 77.4
267% 95.8 MB/s
DQ Read 1,277
DQ Write 794
DQ Mixed 673
599% 914 MB/s
193GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 927 806 271 283 281 284 MB/s
173% Outstanding
Read 1,085
Write 924
Mixed 1,137
SusWrite 475
203% 905 MB/s
4K Read 45.9
4K Write 107
4K Mixed 61.2
204% 71.3 MB/s
DQ Read 1,097
DQ Write 570
DQ Mixed 607
511% 758 MB/s
88GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 848 764 670 522 658 396 MB/s
161% Outstanding
Read 97.6
Write 53.3
Mixed 1,288
SusWrite 643
120% 520 MB/s
4K Read 51.9
4K Write 133
4K Mixed 70.1
239% 85 MB/s
DQ Read 1,154
DQ Write 821
DQ Mixed 672
587% 882 MB/s
10,276 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 49,560,459 SSDs tested.

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CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical NVMe KIOXIA 256GB Builds (Compare 4,969 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 8%
Tree trunk

System: Dell Inspiron 3593

CPU
Core i5-1035G1IntelBench 65%, 41,938 samples2,615x
Core i7-1065G7IntelBench 65%, 45,808 samples1,429x
Core i3-1005G1IntelBench 59%, 18,491 samples924x
GPU
UHD G1IntelBench 6%, 44,264 samples2,971x
Iris Plus G7IntelBench 11%, 35,727 samples1,092x
GeForce MX230NvidiaBench 10%, 5,205 samples904x
SSD
NVMe KIOXIA 256GBKbg40zns256gBench 151%, 10,276 samples441x
RAM
HMA81GS6DJR8N-VK 1x8GBHynixBench 41%, 7,834 samples586x
HMA81GS6JJR8N-VK 1x8GBHynixBench 40%, 44,789 samples534x
HMA851S6JJR6N-VK 1x4GBHynixBench 31%, 4,956 samples366x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe 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) December 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

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Speed Comparisons

vs Crucial MX500 250GB
vs Samsung 860 Evo 250GB
vs Samsung 850 Evo 120GB
vs Samsung 850 Pro 512GB
vs HyperX Savage 240GB
vs Samsung 870 Evo 250GB
vs Samsung 850 Evo 250GB
vs Crucial MX300 275GB
vs Samsung 850 Evo 1TB

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

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 i5-12600K $300Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $220Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11400F $196Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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