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Kbg40zns512g

NVMe KIOXIA 512GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 154% (138th of 1058)

Based on 10,085 user benchmarks.  Model: KBG40ZNS512G NVMe KIOXIA 512GB
Poor: 87%Average: 154% Great: 225%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns512g NVMe KIOXIA 512GB averaged 53.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg40zns512g NVMe KIOXIA 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 551MB/s
Avg. 4K-64Thread Read Speed 835MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns512g NVMe KIOXIA 512GB is 138%. This is a particularly wide range which indicates that the Kbg40zns512g NVMe KIOXIA 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 460MB/s
Avg. 4K Random Write Speed 102MB/s
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Average Bench

(Based on 10,085 samples)
Rank 138154%
Min Avg Max
507 Read 1,006 1,491
211 Write 906 1,430
311 Mixed 880 1,263
168 SusWrite 460 576
182% 813 MB/s
Min Avg Max
16.9 4K Read 42 57.7
31.4 4K Write 102 200
22.4 4K Mixed 54.5 81.1
188% 66.3 MB/s
Min Avg Max
328 DQ Read 835 1,313
110 DQ Write 423 820
117 DQ Mixed 551 692
430% 603 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
148GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1095 779 352 354 360 351 MB/s
218% Outstanding
Read 1,563
Write 1,465
Mixed 1,297
SusWrite 548
273% 1,218 MB/s
4K Read 55.4
4K Write 149
4K Mixed 74.2
258% 92.7 MB/s
DQ Read 1,129
DQ Write 776
DQ Mixed 634
559% 846 MB/s
429GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 598 632 545 367 369 370 MB/s
167% Outstanding
Read 1,117
Write 1,051
Mixed 1,048
SusWrite 480
207% 924 MB/s
4K Read 47.6
4K Write 116
4K Mixed 63.7
215% 75.7 MB/s
DQ Read 804
DQ Write 350
DQ Mixed 569
424% 575 MB/s
382GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 527 573 537 309 328 321 MB/s
114% Outstanding
Read 928
Write 728
Mixed 684
SusWrite 432
155% 693 MB/s
4K Read 24.3
4K Write 48.8
4K Mixed 29.6
101% 34.2 MB/s
DQ Read 601
DQ Write 285
DQ Mixed 491
351% 459 MB/s
56GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 136 109 78 52 36 38 MB/s
93.9% Outstanding
Read 777
Write 368
Mixed 390
SusWrite 74.9
88% 403 MB/s
4K Read 29.1
4K Write 69.9
4K Mixed 35.3
126% 44.8 MB/s
DQ Read 681
DQ Write 188
DQ Mixed 115
168% 328 MB/s
56GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 77 83 50 38 23 23 MB/s
57.3% Above average
Read 596
Write 65
Mixed 130
SusWrite 49
45% 210 MB/s
4K Read 20
4K Write 20.3
4K Mixed 18.7
65% 19.7 MB/s
DQ Read 403
DQ Write 66.1
DQ Mixed 92.8
104% 187 MB/s
10,085 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 49,499,237 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 512GB Builds (Compare 2,824 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 70%
Battle cruiser
Workstation
Workstation 10%
Tree trunk

System: Dell Inspiron 5593

CPU
Core i7-1065G7IntelBench 65%, 45,808 samples1,654x
Core i5-1035G1IntelBench 65%, 41,938 samples1,120x
Core i3-1005G1IntelBench 60%, 17,842 samples50x
GPU
Iris Plus G7IntelBench 11%, 35,727 samples1,272x
UHD G1IntelBench 6%, 44,264 samples988x
GeForce MX230NvidiaBench 10%, 5,258 samples564x
SSD
NVMe KIOXIA 512GBKbg40zns512gBench 154%, 10,085 samples634x
RAM
HMA81GS6DJR8N-VK 1x8GBHynixBench 41%, 7,834 samples355x
HMA81GS6JJR8N-VK 1x8GBHynixBench 40%, 44,789 samples338x
KHYXPX-HYJ 1x8GBKingstonBench 41%, 877 samples238x
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Popular NVMe KIOXIA 512GB 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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  • - 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.
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  • - Reports are generated and presented on userbenchmark.com.
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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.

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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 i7-11700K $315Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
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 $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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