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Kioxia BG5 KBG50ZNS512G vs Toshiba BG4 KBG40ZPZ512G

Kioxia BG5 KBG50ZNS512G

KBG50ZNS512G

The Kioxia BG5 KBG50ZNS512G (former Toshiba, SED KBG5AZNS512G) is a mid range PCIe4 x4 NVMe M.2 2230 SSD. It uses BiCS FLASH TLC memory and is specified at 3,500 MB/s sequential read and 1,900 MB/s sequential write.

Toshiba BG4 KBG40ZPZ512G

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Kioxia BG5 KBG50ZNS512GToshiba BG4 KBG40ZPZ512G
TypeSSDSSD
SizeM.2 2230M.2 1620-S2
Capacity512 GB512 GB
InterfaceNVMeNVMe
Announced19.08.2022 09.09.2019
LinkKioxia BG5 KBG50ZNS512GToshiba BG4 KBG40ZPZ512G

Benchmarks

Performance Rating - DiskSpd - KBG50ZNS512G
20.3 pt (23%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.717 -96%
...
WDC PC SN530 SDBPMPZ-512G
19.9 -2%
Mushkin Helix-L 1TB MKNSSDHL1TB-08
19.9 -2%
SSSTC CL4-8D512
20 -1%
Toshiba Kioxia XG6 KXG60PNV512G
20 -1%
Intel Optane Memory H10 with Solid State Storage 32GB + 512GB HBRPEKNX0202A(L/H)
20.1 -1%
WDC PC SN730 SDBPNTY-256G
20.1 -1%
2x Intel SSD 660p 1TB SSDPEKNW010T8 (RAID 0)
20.2 0%
Micron 2400 MTFDKBK512QFM
20.2 0%
Micron 2550 1TB MTFDKCD1T0TGE
20.2 0%
Kioxia BG5 KBG50ZNS512G
20.3
Samsung SSD PM981a MZVLB256HBHQ
20.4 0%
Samsung PM981a MZVLB2T0HALB
20.4 0%
256 GB UFS 4.0 Flash
20.5 1%
WDC PC SN730 SDBQNTY-1T00
20.5 1%
Toshiba XG6 KXG6AZNV256G
20.5 1%
Rayson RS512GSSD510 512 GB PCIe 4.0 NVMe
20.5 1%
SK Hynix BC711 HFM512GD3HX015N
20.5 1%
2x Micron 2200S 512 GB (RAID 0)
20.6 1%
Phison E12S-512GB-Phison-SSD-BICS4
20.6 1%
...
Kingston Fury Renegade G5 4TB
87.8 333%
0%
100%
Restrict / Search: Model: Max. age: years
Performance Rating - DiskSpd - KBG40ZPZ512G
18.2 pt (21%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.717 -96%
...
Toshiba KBG40ZNS512G NVMe
17.8 -2%
Lexar 512GB NM6A1 LNM6A1X512G-HNNG
17.8 -2%
Samsung PM991 MZVLQ512HALU
17.8 -2%
SK Hynix HFS001TEJ9X164N
17.9 -2%
Samsung PM991 MZVLQ256HAJD
18 -1%
Intel SSDPEMKF512G8 NVMe SSD
18 -1%
Samsung BM9C1 1024GB
18.1 -1%
Netac G938E
18.1 -1%
Foresee GSYAPGC-512G
18.1 -1%
Toshiba BG4 KBG40ZPZ512G
18.2
Crucial P1 SSD CT1000P1SSD8
18.2 0%
ADATA XPG Gammix S11L 1024GB
18.2 0%
Samsung SSD SM961 1TB M.2 MZVKW1T0HMLH
18.3 1%
Kioxia BG6 KBG6AZNV512G
18.5 2%
Micron 2400 MTFDKBA512QFM
18.5 2%
HP PSEJN512GA87EC0
18.6 2%
Samsung PM991A MZALQ256HBJD
18.7 3%
Kioxia BG5 KBG50ZNT256G
18.7 3%
Micron 2210 MTFDHBA512QFD
18.8 3%
...
Kingston Fury Renegade G5 4TB
87.8 382%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 1174.45     avg: 1452     median: 1482.5 (25%)     max: 1667.48 MB/s
min: 828     avg: 878     median: 877.5 (15%)     max: 927 MB/s
AS SSD - Copy Program
min: 379.46     avg: 582     median: 534 (20%)     max: 879.88 MB/s
min: 331.7     avg: 445.9     median: 445.9 (17%)     max: 560 MB/s
AS SSD - Copy ISO
min: 1634.1     avg: 1937     median: 1992.4 (7%)     max: 2129.4 MB/s
min: 1103     avg: 1198     median: 1198 (4%)     max: 1293 MB/s
AS SSD - Score Total
min: 1381     avg: 2114     median: 2229 (14%)     max: 2529 Points
min: 2447     avg: 2515     median: 2515 (15%)     max: 2583 Points
AS SSD - Score Write
min: 573     avg: 796     median: 762 (11%)     max: 1226 Points
min: 388     avg: 453.5     median: 453.5 (6%)     max: 519 Points
AS SSD - Score Read
min: 530     avg: 897     median: 933 (15%)     max: 1190 Points
min: 1311     avg: 1392     median: 1391.5 (22%)     max: 1472 Points
AS SSD - Access Time Write *
min: 0.035     avg: 0.1     median: 0.1 (0%)     max: 0.179 ms
min: 0.518     avg: 0.6     median: 0.6 (1%)     max: 0.625 ms
AS SSD - Access Time Read *
min: 0.078     avg: 0.1     median: 0.1 (0%)     max: 0.163 ms
min: 0.069     avg: 0.1     median: 0.1 (0%)     max: 0.072 ms
AS SSD - 4K-64 Write
min: 333.93     avg: 517     median: 401.5 (7%)     max: 996.39 MB/s
min: 209     avg: 269     median: 269 (5%)     max: 328.9 MB/s
AS SSD - 4K-64 Read
min: 274.83     avg: 601     median: 618.5 (12%)     max: 855.48 MB/s
min: 1058     avg: 1156     median: 1155.5 (23%)     max: 1253 MB/s
AS SSD - 4K Write
min: 65.2     avg: 133.2     median: 111.9 (22%)     max: 197.81 MB/s
min: 67     avg: 89.6     median: 89.6 (17%)     max: 112.2 MB/s
AS SSD - 4K Read
min: 28.72     avg: 48.1     median: 45.4 (14%)     max: 65.01 MB/s
min: 39.7     avg: 44.6     median: 44.6 (14%)     max: 49.55 MB/s
AS SSD - Sequential Write
min: 1273.97     avg: 1451     median: 1451 (13%)     max: 1683.46 MB/s
min: 776     avg: 951     median: 950.5 (8%)     max: 1125 MB/s
AS SSD - Sequential Read
min: 2269.2     avg: 2481     median: 2448.8 (19%)     max: 2693.29 MB/s
min: 1801     avg: 1916     median: 1916 (15%)     max: 2031 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 54.4     avg: 106.8     median: 107.4 (10%)     max: 157.8 MB/s
min: 106.7     avg: 118.2     median: 118.2 (11%)     max: 129.6 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 29.04     avg: 43     median: 44.9 (1%)     max: 53.2 MB/s
min: 49.94     avg: 51.1     median: 51.1 (1%)     max: 52.2 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
min: 1317     avg: 1771     median: 1912.5 (10%)     max: 1941 MB/s
min: 1223     avg: 1267     median: 1266.5 (7%)     max: 1310 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
min: 1458     avg: 1977     median: 2056.5 (22%)     max: 2337 MB/s
min: 1726     avg: 1764     median: 1763.5 (19%)     max: 1801 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 240.3     avg: 302.3     median: 300.6 (6%)     max: 367.8 MB/s
min: 325.3     avg: 330     median: 330 (7%)     max: 334.7 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 92.63     avg: 317.8     median: 367.2 (5%)     max: 444.3 MB/s
min: 447.6     avg: 499.3     median: 499.3 (7%)     max: 551 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 2356     avg: 2621     median: 2686.5 (18%)     max: 2754 MB/s
min: 1224     avg: 1317     median: 1317 (9%)     max: 1410 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 2601     avg: 2851     median: 2897 (16%)     max: 3008 MB/s
min: 2350     avg: 2370     median: 2370 (13%)     max: 2390 MB/s
DiskSpd - DiskSpd 4k_q1t1_write
min: 49.4     avg: 118.2     median: 122.4 (28%)     max: 162.6 MB/s
143 MB/s (33%)
DiskSpd - DiskSpd 4k_q1t1_read
min: 40.3     avg: 53.5     median: 55.7 (16%)     max: 67.2 MB/s
53.1 MB/s (15%)
DiskSpd - DiskSpd 4k_q32t16_write
min: 308     avg: 372     median: 387 (6%)     max: 461 MB/s
442 MB/s (7%)
DiskSpd - DiskSpd 4k_q32t16_read
min: 469     avg: 735     median: 676 (8%)     max: 1190 MB/s
717 MB/s (9%)
DiskSpd - DiskSpd seq_write
min: 1362     avg: 1962     median: 2020 (19%)     max: 2191 MB/s
1385 MB/s (13%)
DiskSpd - DiskSpd seq_read
min: 1615     avg: 2090     median: 2166 (23%)     max: 2617 MB/s
1691 MB/s (18%)
DiskSpd - DiskSpd seq_q8t1_write
min: 1964     avg: 2613     median: 2718 (19%)     max: 2770 MB/s
1419 MB/s (10%)
DiskSpd - DiskSpd seq_q8t1_read
min: 1665     avg: 2581     median: 2569 (16%)     max: 3313 MB/s
2419 MB/s (15%)
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 1580     avg: 2368     median: 2187 (13%)     max: 3064 MB/s
2395 MB/s (15%)
- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Average Benchmarks

Kioxia BG5 KBG50ZNS512G → 100% n=31

Toshiba BG4 KBG40ZPZ512G → 93% n=31

Average of the median scores above. 1 ... This benchmark is not used for the average calculation

Amazon Logo
  • $138.00
    KIOXIA SSD 512GB M.2 2230 30mm NVMe PCIe 4.0 Gen 4 x 4 BG5 (OEM)
  • $138.00
    Mavark KIOXIA 512GB BG5 NVMe SSD M.2 2230 30mm PCIe Gen 4.0 x4 Internal Solid State Drive KBG50ZNS512G
  • $99.99
    KIOXIA Internal SSD, 512GB PCIe Gen 3 x 4 NVMe Solid State Drive, M.2 2230, Model KBG40ZNS512G, OEM Package
  • $139.99
    Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 KBG40ZNS512G BG4 Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet
  • $122.40
    For KIOXIA M33126-001 KBG30ZMV256G h p BG3 NVMe 256GB SSD Solid State Drive

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v1.35
log 04. 16:15:16

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 3874 +0s ... 0s

#2 checking url part for id 3405 +0s ... 0s

#3 redirected to Ajax server, took 1780582515s time from redirect:0 +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Mon, 01 Jun 2026 22:56:29 +0200 +0s ... 0s

#5 composed specs +0.002s ... 0.002s

#6 did output specs +0s ... 0.002s

#7 getting avg benchmarks for device 3874 +0.003s ... 0.006s

#8 got single benchmarks 3874 +0.006s ... 0.012s

#9 getting avg benchmarks for device 3405 +0.003s ... 0.015s

#10 got single benchmarks 3405 +0.002s ... 0.018s

#11 got avg benchmarks for devices +0s ... 0.018s

#12 min, max, avg, median took s +0.028s ... 0.046s

#13 return log +0.49s ... 0.536s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > HDD/SSD Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)