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Nvme

KBG40ZNS512G KIOXIA 512GB

▲ 506 ▼

Release date ≈ Q4 2020.

Average Bench: 158% (146th of 1072)

Based on 4,729 user benchmarks.  Model: NVMe KBG40ZNS512G NVMe KIOXIA 512GB
Poor: 89%Average: 158% Great: 229%

Popular builds with this SSD

Outstanding average bench

The Nvme KBG40ZNS512G KIOXIA 512GB averaged 57.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Nvme KBG40ZNS512G KIOXIA 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 531MB/s
Avg. 4K-64Thread Read Speed 787MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Nvme KBG40ZNS512G KIOXIA 512GB is 140%. This is a particularly wide range which indicates that the Nvme KBG40ZNS512G KIOXIA 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 440MB/s
Avg. 4K-64Thread Write Speed 380MB/s
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Average Bench

(Based on 4,729 samples)
Rank 146158%
Min Avg Max
550 Read 1,063 1,523
250 Write 879 1,425
284 Mixed 892 1,288
216 SusWrite 440 550
183% 819 MB/s
Min Avg Max
16.1 4K Read 43.4 55.7
37.4 4K Write 117 203
24.4 4K Mixed 58.4 81.9
202% 72.8 MB/s
Min Avg Max
292 DQ Read 787 1,293
117 DQ Write 380 812
119 DQ Mixed 531 679
408% 566 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
158GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 1118 760 366 365 365 365 MB/s
244% Outstanding
Read 1,588
Write 1,459
Mixed 1,248
SusWrite 556
272% 1,213 MB/s
4K Read 60.5
4K Write 224
4K Mixed 87.7
323% 124 MB/s
DQ Read 1,272
DQ Write 836
DQ Mixed 664
600% 924 MB/s
328GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 331 427 407 346 441 212 MB/s
144% Outstanding
Read 1,120
Write 936
Mixed 942
SusWrite 360
188% 840 MB/s
4K Read 41.6
4K Write 102
4K Mixed 57.9
192% 67.3 MB/s
DQ Read 568
DQ Write 232
DQ Mixed 369
281% 390 MB/s
271GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 491 564 595 325 498 627 MB/s
143% Outstanding
Read 1,140
Write 140
Mixed 899
SusWrite 517
149% 674 MB/s
4K Read 42
4K Write 84.8
4K Mixed 49.6
172% 58.8 MB/s
DQ Read 350
DQ Write 193
DQ Mixed 295
213% 279 MB/s
211GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 515 512 521 405 351 353 MB/s
140% Outstanding
Read 929
Write 627
Mixed 893
SusWrite 443
162% 723 MB/s
4K Read 34.1
4K Write 102
4K Mixed 58.3
180% 64.6 MB/s
DQ Read 546
DQ Write 306
DQ Mixed 522
363% 458 MB/s
168GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 598 624 560 335 258 262 MB/s
138% Outstanding
Read 1,010
Write 953
Mixed 959
SusWrite 439
189% 840 MB/s
4K Read 42.7
4K Write 84.7
4K Mixed 53.9
179% 60.4 MB/s
DQ Read 473
DQ Write 220
DQ Mixed 276
223% 323 MB/s
221GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 604 453 455 262 347 270 MB/s
124% Outstanding
Read 1,095
Write 980
Mixed 971
SusWrite 398
193% 861 MB/s
4K Read 37.2
4K Write 58.2
4K Mixed 43.3
143% 46.2 MB/s
DQ Read 364
DQ Write 160
DQ Mixed 295
210% 273 MB/s
192GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 211 235 349 412 518 355 MB/s
87.2% Excellent
Read 593
Write 729
Mixed 718
SusWrite 347
135% 597 MB/s
4K Read 0.4
4K Write 52.7
4K Mixed 37.6
77% 30.2 MB/s
DQ Read 540
DQ Write 185
DQ Mixed 194
187% 306 MB/s
23GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 123 85 38 38 31 24 MB/s
75.8% Very good
Read 376
Write 228
Mixed 128
SusWrite 56.4
43% 197 MB/s
4K Read 29.6
4K Write 60.2
4K Mixed 36.6
124% 42.1 MB/s
DQ Read 737
DQ Write 111
DQ Mixed 118
165% 322 MB/s
118GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 584 653 528 114 331 76 MB/s
75.7% Very good
Read 42
Write 83.1
Mixed 662
SusWrite 381
68% 292 MB/s
4K Read 38.1
4K Write 71.9
4K Mixed 27.7
131% 45.9 MB/s
DQ Read 316
DQ Write 209
DQ Mixed 371
248% 299 MB/s
4,729 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,723,748 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 KBG40ZNS512G KIOXIA 512GB Builds (Compare 10,174 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  $217Bench 98%, 20,430 samples4,452x
Core i7-10700Intel  $233Bench 93%, 71,010 samples1,829x
Core i5-11400Intel  $134Bench 94%, 24,459 samples1,153x
GPU
RTX 3060-TiNvidia  $340Bench 128%, 442,467 samples2,417x
UHD Graphics 750IntelBench 7%, 15,464 samples1,090x
RTX 3060Nvidia  $279Bench 100%, 447,556 samples992x
SSD
KBG40ZNS512G KIOXIA 512GBNvmeBench 158%, 4,729 samples642x
RAM
HMAA1GU6CJR6N-XN 2x8GBUnknownBench 65%, 1,864 samples653x
M378A2G43AB3-CWE 2x16GBUnknownBench 79%, 764 samples539x
M378A1G44AB0-CWE 2x8GBUnknownBench 63%, 886 samples396x
EDIT WITH CUSTOM PC BUILDER Value: 96% - Outstanding Total price: $557

Popular KBG40ZNS512G KIOXIA 512GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

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How it works

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  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
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  • - Reports are generated and presented on userbenchmark.com
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Solid State Drive Rankings (Price vs Performance) April 2024 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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 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?
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Solid State Drives
What is the SSD value for money rating?
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Can CPU power saving states (C1,C2,C3) impact SSD speed?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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