Average Bench: 127% (170th of 1058)

Based on 537 user benchmarks.  Model: KBG40ZPZ512G NVMe KIOXIA 512GB
Poor: 87%Average: 127% Great: 176%

Outstanding average bench

The Kbg40zpz512g NVMe KIOXIA 512GB averaged 26.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg40zpz512g NVMe KIOXIA 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 520MB/s
Avg. 4K-64Thread Read Speed 751MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zpz512g NVMe KIOXIA 512GB is 88.8%. This is a particularly wide range which indicates that the Kbg40zpz512g NVMe KIOXIA 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Write Speed 59MB/s
Avg. Sustained Write Speed 450MB/s
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Average Bench

(Based on 537 samples)
Min Avg Max
617 Read 906 1,291
376 Write 760 1,200
458 Mixed 809 1,172
304 SusWrite 450 539
164% 731 MB/s
Min Avg Max
14.8 4K Read 30.2 44.8
19.1 4K Write 59 98.5
15.2 4K Mixed 37.7 57.4
125% 42.3 MB/s
Min Avg Max
321 DQ Read 751 1,160
141 DQ Write 330 728
212 DQ Mixed 520 685
391% 534 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
399GB free (System drive)
Firmware: 10400105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 694 718 385 351 346 345 MB/s
Read 998
Write 921
Mixed 978
SusWrite 473
189% 843 MB/s
4K Read 49.6
4K Write 125
4K Mixed 65.7
226% 80.2 MB/s
DQ Read 1,114
DQ Write 452
DQ Mixed 693
537% 753 MB/s
443GB free (System drive)
Firmware: 10400104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 542 865 532 358 324 354 MB/s
Read 1,141
Write 1,080
Mixed 1,070
SusWrite 496
212% 947 MB/s
4K Read 38.4
4K Write 69.5
4K Mixed 44.2
152% 50.7 MB/s
DQ Read 1,125
DQ Write 750
DQ Mixed 691
582% 855 MB/s
313GB free (System drive)
Firmware: 10400106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 737 759 560 369 367 366 MB/s
Read 1,143
Write 902
Mixed 963
SusWrite 526
198% 884 MB/s
4K Read 40.5
4K Write 113
4K Mixed 61.9
200% 71.8 MB/s
DQ Read 693
DQ Write 365
DQ Mixed 616
434% 558 MB/s
393GB free (System drive)
Firmware: 10400105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1011 493 498 355 369 301 MB/s
Read 316
Write 1,226
Mixed 1,133
SusWrite 504
182% 795 MB/s
4K Read 49.4
4K Write 124
4K Mixed 67.4
227% 80.3 MB/s
DQ Read 955
DQ Write 755
DQ Mixed 661
547% 790 MB/s
171GB free (System drive)
Firmware: 10400104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 587 640 548 318 352 362 MB/s
Read 1,028
Write 788
Mixed 866
SusWrite 468
176% 788 MB/s
4K Read 35
4K Write 61.1
4K Mixed 43
140% 46.4 MB/s
DQ Read 765
DQ Write 353
DQ Mixed 591
430% 570 MB/s
121GB free (System drive)
Firmware: 10400106 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 659 669 475 302 292 331 MB/s
Read 1,050
Write 850
Mixed 895
SusWrite 455
182% 813 MB/s
4K Read 44.8
4K Write 84.5
4K Mixed 47.3
173% 58.9 MB/s
DQ Read 236
DQ Write 246
DQ Mixed 258
189% 247 MB/s
440GB free (System drive)
Firmware: 10400105 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 612 427 351 508 407 653 MB/s
Read 676
Write 123
Mixed 704
SusWrite 493
112% 499 MB/s
4K Read 10.8
4K Write 97.9
4K Mixed 59.1
144% 55.9 MB/s
DQ Read 725
DQ Write 288
DQ Mixed 642
439% 551 MB/s
367GB free (System drive)
Firmware: 10400104 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 502 550 524 383 354 357 MB/s
Read 708
Write 694
Mixed 584
SusWrite 445
137% 608 MB/s
4K Read 17.8
4K Write 19.1
4K Mixed 16.8
59% 17.9 MB/s
DQ Read 768
DQ Write 259
DQ Mixed 589
415% 539 MB/s
537 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,313,552 SSDs tested.

Typical NVMe KIOXIA 512GB Builds (Compare 1,075 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 18%
Surfboard
Desktop
Desktop 72%
Battleship
Workstation
Workstation 16%
Surfboard

System: Dell XPS 13 7390 2-in-1

EDIT WITH CUSTOM PC BUILDER

Popular NVMe KIOXIA 512GB systems:

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Solid State Drive Rankings (Price vs Performance) June 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.

 Comments

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

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