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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%
247GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 660 985 355 367 365 366 MB/s
151% Outstanding
Read 889
Write 591
Mixed 550
SusWrite 516
142% 637 MB/s
4K Read 31.6
4K Write 96.4
4K Mixed 55.5
170% 61.2 MB/s
DQ Read 1229
DQ Write 148
DQ Mixed 680
499% 686 MB/s
431GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 734 753 471 355 361 359 MB/s
137% Outstanding
Read 1,017
Write 1,034
Mixed 1,007
SusWrite 506
200% 891 MB/s
4K Read 21
4K Write 70.5
4K Mixed 29.3
107% 40.3 MB/s
DQ Read 821
DQ Write 675
DQ Mixed 438
412% 644 MB/s
159GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 813 847 368 366 333 361 MB/s
126% Outstanding
Read 751
Write 581
Mixed 977
SusWrite 515
159% 706 MB/s
4K Read 27
4K Write 51.7
4K Mixed 32.6
110% 37.1 MB/s
DQ Read 906
DQ Write 478
DQ Mixed 629
484% 671 MB/s
431GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 549 578 556 331 330 348 MB/s
121% Outstanding
Read 1,080
Write 496
Mixed 911
SusWrite 449
164% 734 MB/s
4K Read 21
4K Write 108
4K Mixed 37.9
137% 55.5 MB/s
DQ Read 206
DQ Write 166
DQ Mixed 214
152% 195 MB/s
324GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 345 325 388 407 351 296 MB/s
78.6% Very good
Read 571
Write 366
Mixed 403
SusWrite 352
95% 423 MB/s
4K Read 19.7
4K Write 26.7
4K Mixed 21.3
71% 22.6 MB/s
DQ Read 400
DQ Write 147
DQ Mixed 368
247% 305 MB/s
64GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 312 175 273 221 181 69 MB/s
73.3% Very good
Read 45.1
Write 395
Mixed 33.6
SusWrite 205
39% 170 MB/s
4K Read 0.4
4K Write 37.9
4K Mixed 51.6
87% 30 MB/s
DQ Read 880
DQ Write 383
DQ Mixed 517
413% 593 MB/s
15,775 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 63,161,146 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 7,383 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 125%
UFO
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 123%
UFO

System: Dell XPS 8940

CPU
Core i7-11700Intel  $266Bench 98%, 10,278 samples3,360x
Core i7-10700Intel  $272Bench 93%, 71,010 samples1,200x
Core i5-11400Intel  $148Bench 94%, 18,357 samples900x
GPU
RTX 3060-TiNvidia  $460Bench 129%, 322,253 samples1,810x
UHD Graphics 750IntelBench 7%, 15,464 samples851x
RTX 3060Nvidia  $360Bench 100%, 301,333 samples702x
SSD
NVMe KIOXIA 512GBKbg40zns512gBench 148%, 15,775 samples1x
RAM
HMAA1GU6CJR6N-XN 2x8GBUnknownBench 65%, 1,864 samples508x
M378A2G43AB3-CWE 2x16GBUnknownBench 79%, 764 samples424x
M378A1G44AB0-CWE 2x8GBUnknownBench 63%, 886 samples306x
EDIT WITH CUSTOM PC BUILDER Value: 78% - Very good Total price: $726

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) January 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 $320Nvidia RTX 3060-Ti $460Crucial MX500 250GB $30
Intel Core i3-12100F $98Nvidia RTX 3070 $568Samsung 850 Evo 120GB $106
Intel Core i5-12600K $233Nvidia RTX 3050 $298Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $50SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3200 C16 2x8GB $49SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $417SanDisk Ultra Fit 32GB $16
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