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Kbg40zns256g

NVMe KIOXIA 256GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 149% (165th of 1080)

Based on 13,282 user benchmarks.  Model: KBG40ZNS256G NVMe KIOXIA 256GB
Poor: 75%Average: 149% Great: 219%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns256g NVMe KIOXIA 256GB averaged 48.7% 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 499MB/s
Avg. 4K-64Thread Read Speed 825MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns256g NVMe KIOXIA 256GB is 144%. 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 417MB/s
Avg. 4K Random Write Speed 96.8MB/s

Average Bench

(Based on 13,282 samples)
Rank 165149%
Min Avg Max
104 Read 947 1,505
88.7 Write 781 1,448
153 Mixed 810 1,283
66.5 SusWrite 417 579
166% 739 MB/s
Min Avg Max
14.6 4K Read 44.1 58.4
25.1 4K Write 96.8 177
18.1 4K Mixed 54 80.1
187% 65 MB/s
Min Avg Max
279 DQ Read 825 1,419
72.8 DQ Write 426 808
96.8 DQ Mixed 499 711
405% 583 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
218GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 889 833 403 401 402 403 MB/s
204% Outstanding
Read 1,432
Write 1,157
Mixed 1,097
SusWrite 555
237% 1,060 MB/s
4K Read 51.6
4K Write 126
4K Mixed 68.8
233% 82 MB/s
DQ Read 1146
DQ Write 693
DQ Mixed 721
591% 854 MB/s
162GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 779 932 403 401 408 397 MB/s
197% Outstanding
Read 1,192
Write 1,297
Mixed 1,101
SusWrite 553
233% 1,036 MB/s
4K Read 52.7
4K Write 146
4K Mixed 66.6
243% 88.5 MB/s
DQ Read 1,108
DQ Write 756
DQ Mixed 696
583% 853 MB/s
24GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 15 22 20 27 27 11 MB/s
175% Outstanding
Read 2,324
Write 28.6
Mixed 27.2
SusWrite 20.3
125% 600 MB/s
4K Read 198
4K Write 1.7
4K Mixed 3.7
305% 67.7 MB/s
59GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 486 403 475 372 297 184 MB/s
130% Outstanding
Read 670
Write 385
Mixed 638
SusWrite 370
115% 515 MB/s
4K Read 42.2
4K Write 72.6
4K Mixed 49.3
166% 54.7 MB/s
DQ Read 794
DQ Write 499
DQ Mixed 676
496% 656 MB/s
162GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 375 317 410 396 227 342 MB/s
96.5% Outstanding
Read 520
Write 552
Mixed 656
SusWrite 344
117% 518 MB/s
4K Read 18.7
4K Write 87.7
4K Mixed 32.1
116% 46.2 MB/s
DQ Read 674
DQ Write 175
DQ Mixed 423
312% 424 MB/s
188GB free (System drive)
Firmware: 10410104 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 382 410 416 325 371 354 MB/s
92.7% Outstanding
Read 409
Write 149
Mixed 392
SusWrite 376
74% 332 MB/s
4K Read 33
4K Write 25.7
4K Mixed 39.8
115% 32.8 MB/s
DQ Read 564
DQ Write 196
DQ Mixed 427
303% 396 MB/s
110GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 293 194 437 446 534 284 MB/s
78.4% Very good
Read 308
Write 792
Mixed 381
SusWrite 365
105% 462 MB/s
4K Read 0.4
4K Write 57.8
4K Mixed 45.9
90% 34.7 MB/s
DQ Read 389
DQ Write 186
DQ Mixed 217
180% 264 MB/s
13,282 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,938,412 SSDs tested

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical NVMe KIOXIA 256GB Builds (Compare 1,372 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 55%
Gunboat
Workstation
Workstation 7%
Tree trunk

System: Dell Latitude 3510

CPU
Core i5-10210UIntelBench 53%, 54,859 samples836x
Core i7-10510UIntelBench 56%, 51,080 samples266x
Core i3-10110UIntelBench 47%, 11,481 samples211x
GPU
UHD GraphicsIntelBench 5%, 110,580 samples1,309x
GeForce MX230NvidiaBench 10%, 6,801 samples63x
SSD
NVMe KIOXIA 256GBKbg40zns256gBench 149%, 13,282 samples224x
RAM
HMA81GS6DJR8N-XN 1x8GBUnknownBench 44%, 3,256 samples190x
M471A1K43DB1-CWE 1x8GBSamsungBench 45%, 34,565 samples139x
HMA81GS6CJR8N-XN 1x8GBUnknownBench 43%, 1,283 samples71x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe KIOXIA 256GB systems:

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 Frequently Asked Questions

Storage Devices FAQ
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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?
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $146
Intel Core i5-12400F $112Nvidia RTX 4060-Ti $380WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $248Nvidia RTX 4070 $278Crucial T700 M.2 4TB $397
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