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Kbg40zns512g

NVMe KIOXIA 512GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 148% (157th of 1071)

Based on 15,775 user benchmarks.  Model: KBG40ZNS512G NVMe KIOXIA 512GB
Poor: 81%Average: 148% Great: 216%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns512g NVMe KIOXIA 512GB averaged 48.3% 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 515MB/s
Avg. 4K-64Thread Read Speed 826MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns512g NVMe KIOXIA 512GB is 135%. 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 427MB/s
Avg. 4K Random Write Speed 101MB/s
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Average Bench

(Based on 15,775 samples)
Rank 157148%
Min Avg Max
199 Read 967 1,465
118 Write 835 1,420
203 Mixed 819 1,262
75.8 SusWrite 427 577
171% 762 MB/s
Min Avg Max
12.6 4K Read 40.1 57
34.2 4K Write 101 190
24.4 4K Mixed 53.2 79.8
182% 64.6 MB/s
Min Avg Max
328 DQ Read 826 1,310
73.4 DQ Write 405 819
104 DQ Mixed 515 689
409% 582 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
198GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 166 466 212 425 309 386 MB/s
191% Outstanding
Read 1,222
Write 464
Mixed 1,265
SusWrite 328
183% 820 MB/s
4K Read 46.3
4K Write 208
4K Mixed 82.6
286% 112 MB/s
DQ Read 1,064
DQ Write 450
DQ Mixed 480
429% 665 MB/s
363GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 808 500 667 302 299 361 MB/s
185% Outstanding
Read 1,354
Write 783
Mixed 1,180
SusWrite 489
212% 952 MB/s
4K Read 44.7
4K Write 111
4K Mixed 61.3
205% 72.2 MB/s
DQ Read 948
DQ Write 726
DQ Mixed 659
541% 777 MB/s
364GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 606 188 599 664 353 687 MB/s
178% Outstanding
Read 1,126
Write 398
Mixed 1,052
SusWrite 516
172% 773 MB/s
4K Read 46.7
4K Write 112
4K Mixed 62.9
211% 73.9 MB/s
DQ Read 928
DQ Write 667
DQ Mixed 660
530% 752 MB/s
269GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 626 441 664 338 342 307 MB/s
152% Outstanding
Read 1021
Write 632
Mixed 536
SusWrite 453
147% 661 MB/s
4K Read 31.3
4K Write 99.5
4K Mixed 51.7
166% 60.8 MB/s
DQ Read 818
DQ Write 600
DQ Mixed 347
358% 589 MB/s
217GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 324 431 542 309 259 321 MB/s
77.1% Very good
Read 550
Write 299
Mixed 546
SusWrite 364
99% 440 MB/s
4K Read 19.8
4K Write 32.7
4K Mixed 26.1
81% 26.2 MB/s
DQ Read 238
DQ Write 96.7
DQ Mixed 185
132% 173 MB/s
15,775 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 71,123,989 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 9,054 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 124%
UFO
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 123%
UFO

System: Dell XPS 8940

CPU
Core i7-11700Intel  $235Bench 98%, 11,207 samples4,003x
Core i7-10700Intel  $236Bench 93%, 71,010 samples1,578x
Core i5-11400Intel  $144Bench 94%, 24,459 samples1,053x
GPU
RTX 3060-TiNvidia  $260Bench 128%, 442,467 samples2,166x
UHD Graphics 750IntelBench 7%, 15,464 samples991x
RTX 3060Nvidia  $255Bench 100%, 447,556 samples886x
SSD
NVMe KIOXIA 512GBKbg40zns512gBench 148%, 15,775 samples1x
RAM
HMAA1GU6CJR6N-XN 2x8GBUnknownBench 65%, 1,864 samples592x
M378A2G43AB3-CWE 2x16GBUnknownBench 79%, 764 samples492x
M378A1G44AB0-CWE 2x8GBUnknownBench 63%, 886 samples362x
EDIT WITH CUSTOM PC BUILDER Value: 110% - Outstanding Total price: $495

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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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 2023 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

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1071 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 i5-13600K $310Nvidia RTX 4060 $290Crucial MX500 250GB $28
Intel Core i5-12400F $150Nvidia RTX 4060-Ti $397Samsung 850 Evo 120GB $60
Intel Core i5-12600K $205Nvidia RTX 3060-Ti $260Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $50G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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