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Kbg40zns512g

NVMe KIOXIA 512GB

▲ 500 ▼

Release date ≈ Q4 2019.

Average Bench: 147% (147th of 1058)

Based on 8,398 user benchmarks.  Model: KBG40ZNS512G NVMe KIOXIA 512GB
Poor: 88%Average: 147% Great: 208%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns512g NVMe KIOXIA 512GB averaged 46.7% 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 537MB/s
Avg. 4K-64Thread Read Speed 754MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns512g NVMe KIOXIA 512GB is 120%. 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 449MB/s
Avg. 4K Random Write Speed 93.7MB/s
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Average Bench

(Based on 8,398 samples)
Rank 147147%
Min Avg Max
446 Read 983 1,514
286 Write 903 1,423
289 Mixed 873 1,269
167 SusWrite 449 563
180% 802 MB/s
Min Avg Max
16.9 4K Read 38.4 54
42.8 4K Write 93.7 148
26.4 4K Mixed 52 72.6
174% 61.4 MB/s
Min Avg Max
310 DQ Read 754 1,236
96.3 DQ Write 404 787
111 DQ Mixed 537 691
410% 565 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
174GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 536 633 445 995 853 793 MB/s
214% Outstanding
Read 1,494
Write 152
Mixed 714
SusWrite 709
169% 767 MB/s
4K Read 52.7
4K Write 130
4K Mixed 70.5
239% 84.5 MB/s
DQ Read 1,004
DQ Write 649
DQ Mixed 227
331% 627 MB/s
414GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1074 775 364 361 365 366 MB/s
207% Outstanding
Read 1,560
Write 1,371
Mixed 1,333
SusWrite 551
270% 1,204 MB/s
4K Read 53.4
4K Write 145
4K Mixed 72.1
250% 90 MB/s
DQ Read 879
DQ Write 647
DQ Mixed 629
506% 718 MB/s
264GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 719 922 355 354 359 331 MB/s
204% Outstanding
Read 1,460
Write 1,420
Mixed 1,266
SusWrite 507
261% 1,163 MB/s
4K Read 54
4K Write 145
4K Mixed 73.2
252% 90.8 MB/s
DQ Read 916
DQ Write 736
DQ Mixed 649
534% 767 MB/s
220GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 750 803 437 347 349 349 MB/s
149% Outstanding
Read 864
Write 987
Mixed 900
SusWrite 506
184% 814 MB/s
4K Read 40.3
4K Write 95.6
4K Mixed 54.9
182% 63.6 MB/s
DQ Read 830
DQ Write 355
DQ Mixed 672
477% 619 MB/s
220GB free (System drive)
Firmware: 10410105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 692 752 461 325 343 327 MB/s
148% Outstanding
Read 895
Write 994
Mixed 894
SusWrite 483
184% 817 MB/s
4K Read 42
4K Write 93.5
4K Mixed 54
182% 63.2 MB/s
DQ Read 821
DQ Write 336
DQ Mixed 680
476% 612 MB/s
281GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 762 800 784 558 357 362 MB/s
145% Outstanding
Read 863
Write 982
Mixed 793
SusWrite 604
183% 810 MB/s
4K Read 38.6
4K Write 77
4K Mixed 47.5
160% 54.4 MB/s
DQ Read 727
DQ Write 362
DQ Mixed 664
461% 584 MB/s
363GB free (System drive)
Firmware: 10410106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 598 687 528 361 291 275 MB/s
145% Outstanding
Read 1,014
Write 1,058
Mixed 968
SusWrite 457
196% 874 MB/s
4K Read 52.2
4K Write 59.9
4K Mixed 54
180% 55.4 MB/s
DQ Read 805
DQ Write 118
DQ Mixed 228
226% 383 MB/s
281GB free (System drive)
Firmware: 10410104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 606 579 357 349 364 365 MB/s
137% Outstanding
Read 865
Write 961
Mixed 880
SusWrite 437
177% 786 MB/s
4K Read 39.6
4K Write 76.3
4K Mixed 49.8
164% 55.2 MB/s
DQ Read 772
DQ Write 337
DQ Mixed 572
419% 561 MB/s
8,398 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,556,901 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 2,550 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 12%
Tree trunk
Desktop
Desktop 70%
Battleship
Workstation
Workstation 10%
Tree trunk

System: Dell Inspiron 5593

CPU
Core i7-1065G7IntelBench 65%, 42,217 samples1,505x
Core i5-1035G1IntelBench 64%, 34,671 samples997x
Core i3-1005G1IntelBench 59%, 14,257 samples48x
GPU
Iris Plus G7IntelBench 11%, 33,365 samples1,159x
UHD G1IntelBench 6%, 39,832 samples889x
GeForce MX230NvidiaBench 11%, 4,366 samples502x
SSD
NVMe KIOXIA 512GBKbg40zns512gBench 147%, 8,398 samples577x
RAM
HMA81GS6DJR8N-VK 1x8GBHynixBench 41%, 7,398 samples331x
HMA81GS6JJR8N-VK 1x8GBHynixBench 40%, 40,975 samples305x
KHYXPX-HYJ 1x8GBKingstonBench 41%, 791 samples221x
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Popular NVMe KIOXIA 512GB systems:

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  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
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  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
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Solid State Drive Rankings (Price vs Performance) August 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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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?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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