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Kbg40zns512g

NVMe KIOXIA 512GB

▲ 501 ▼

Release date ≈ Q4 2019.

Average Bench: 148% (166th of 1080)

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 166148%
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 BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
99GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 1004 697 373 367 342 361 MB/s
176% Outstanding
Read 1,014
Write 701
Mixed 372
SusWrite 524
145% 653 MB/s
4K Read 6.6
4K Write 170
4K Mixed 66.4
185% 80.9 MB/s
DQ Read 1,302
DQ Write 698
DQ Mixed 656
580% 886 MB/s
147GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 850 938 422 357 355 356 MB/s
172% Outstanding
Read 1,130
Write 949
Mixed 928
SusWrite 546
199% 888 MB/s
4K Read 48.3
4K Write 118
4K Mixed 63.2
216% 76.4 MB/s
DQ Read 715
DQ Write 460
DQ Mixed 567
428% 580 MB/s
183GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 825 758 335 373 376 376 MB/s
168% Outstanding
Read 1,199
Write 1,082
Mixed 1,033
SusWrite 507
214% 955 MB/s
4K Read 46.4
4K Write 104
4K Mixed 60.4
203% 70.3 MB/s
DQ Read 876
DQ Write 300
DQ Mixed 640
459% 605 MB/s
179GB free (System drive)
Firmware: 10410104 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 451 311 365 256 279 248 MB/s
162% Outstanding
Read 1,392
Write 1,332
Mixed 622
SusWrite 318
204% 916 MB/s
4K Read 28.4
4K Write 116
4K Mixed 60.9
182% 68.3 MB/s
DQ Read 937
DQ Write 361
DQ Mixed 591
452% 630 MB/s
401GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 620 311 806 363 365 267 MB/s
158% Outstanding
Read 1,162
Write 608
Mixed 1,027
SusWrite 455
181% 813 MB/s
4K Read 26.3
4K Write 115
4K Mixed 58.4
176% 66.6 MB/s
DQ Read 671
DQ Write 606
DQ Mixed 601
461% 626 MB/s
93GB free (System drive)
Firmware: 10410105 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 388 397 378 258 160 101 MB/s
143% Outstanding
Read 482
Write 616
Mixed 1,258
SusWrite 280
150% 659 MB/s
4K Read 43.9
4K Write 113
4K Mixed 61.7
205% 72.7 MB/s
DQ Read 1,251
DQ Write 670
DQ Mixed 669
575% 863 MB/s
358GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 423 559 459 317 333 332 MB/s
132% Outstanding
Read 1035
Write 948
Mixed 915
SusWrite 404
185% 825 MB/s
4K Read 39.6
4K Write 80.7
4K Mixed 48.8
165% 56.4 MB/s
DQ Read 441
DQ Write 221
DQ Mixed 376
267% 346 MB/s
86GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 459 211 350 325 308 333 MB/s
86% Excellent
Read 415
Write 110
Mixed 702
SusWrite 331
88% 390 MB/s
4K Read 13.4
4K Write 57
4K Mixed 39.5
101% 36.6 MB/s
DQ Read 521
DQ Write 210
DQ Mixed 438
305% 390 MB/s
154GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 205 213 237 234 242 136 MB/s
38.8% Below average
Read 306
Write 211
Mixed 271
SusWrite 211
56% 250 MB/s
4K Read 10.8
4K Write 12.1
4K Mixed 9.4
35% 10.8 MB/s
DQ Read 97.5
DQ Write 39.2
DQ Mixed 82.2
57% 73 MB/s
15,775 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,510,530 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 10,377 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  $190Bench 98%, 20,430 samples4,528x
Core i7-10700Intel  $235Bench 93%, 71,010 samples1,880x
Core i5-11400Intel  $117Bench 94%, 24,459 samples1,176x
GPU
RTX 3060-TiNvidia  $340Bench 128%, 442,467 samples2,464x
UHD Graphics 750IntelBench 7%, 15,464 samples1,103x
RTX 3060Nvidia  $256Bench 100%, 447,556 samples1,011x
SSD
NVMe KIOXIA 512GBKbg40zns512gBench 148%, 15,775 samples1x
RAM
HMAA1GU6CJR6N-XN 2x8GBUnknownBench 65%, 1,864 samples661x
M378A2G43AB3-CWE 2x16GBUnknownBench 79%, 764 samples548x
M378A1G44AB0-CWE 2x8GBUnknownBench 63%, 886 samples400x
EDIT WITH CUSTOM PC BUILDER Value: 96% - Outstanding Total price: $530

Popular NVMe KIOXIA 512GB systems:

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Storage Devices FAQ
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Intel Core i5-13600K $235Nvidia RTX 4070 $499Crucial T700 M.2 4TB $342
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