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Kioxia BG5 KBG50ZNS256G

KBG50ZNS256G

The Kioxia BG5 KBG50ZNS256G (former Toshiba, SED KBG50ZNS256G) 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.

TypeSSD
SizeM.2 2230
Capacity512 GB
InterfaceNVMe
Announced19.08.2022
LinkKioxia BG5 KBG50ZNS256G

Benchmarks

Performance Rating - DiskSpd
20.5 pt (23%)
Seagate ST1000LM014 Solid State Hybrid Drive
0.687 -97%
...
Samsung SSD PM981 MZVLB256HAHQ
20.1 -2%
SK Hynix HFM512GD3JX013N
20.1 -2%
ADATA XPG SX8200 Pro (ASX8200PNP-512GT)
20.2 -1%
Kingston SA2000M81000G
20.2 -1%
Kingston OM8PCP31024F
20.3 -1%
Kingston NV1 SNVS/500GCN
20.3 -1%
Lexar NM610 1TB
20.3 -1%
Micron 2210 MTFDHBA1T0QFD
20.4 0%
Kingston NV2 2TB SNV2S/2000G
20.4 0%
Kioxia BG5 KBG50ZNS256G
20.5
WDC PC SN540 SDDPNPF-512G
20.6 0%
Acer SSD FA100 1TB
20.6 0%
Toshiba XG6 KXG60ZNV512G
20.7 1%
SK Hynix Gold P31 2TB SHGP31-2000GM
20.7 1%
Micron 2300 1TB MTFDHBA1T0TDV
20.8 1%
SK Hynix PC711 1TB HFS001TDE9X073N
20.8 1%
Kioxia BG5 KBG50ZNT1T02
20.8 1%
WDC PC SN720 SDAQNTW-512G
20.9 2%
Kioxia BG5 KBG5AZNT512G
20.9 2%
...
Kingston Fury Renegade G5 8TB
88.2 330%
0%
100%
Restrict / Search: Model: Max. age: years
AS SSD - Copy Game
min: 1163.14     avg: 1199     median: 1198.8 (20%)     max: 1234.36 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy Program
min: 565.52     avg: 646     median: 645.8 (24%)     max: 726.11 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Copy ISO
min: 1231.55     avg: 1281     median: 1281.4 (5%)     max: 1331.2 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Total
min: 2683     avg: 2977     median: 2977 (18%)     max: 3271 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Write
min: 795     avg: 1151     median: 1150.5 (16%)     max: 1506 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Score Read
min: 780     avg: 1222     median: 1221.5 (20%)     max: 1663 Points
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Write *
min: 0.023     avg: 0     median: 0 (0%)     max: 0.032 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Access Time Read *
min: 0.075     avg: 0.1     median: 0.1 (0%)     max: 0.11 ms
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Write
min: 529.16     avg: 860     median: 859.6 (15%)     max: 1190 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K-64 Read
min: 528     avg: 932     median: 931.6 (18%)     max: 1335.1 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Write
min: 77.02     avg: 125.4     median: 125.4 (24%)     max: 173.8 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - 4K Read
min: 51.19     avg: 56.4     median: 56.4 (18%)     max: 61.6 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Write
min: 1420     avg: 1655     median: 1654.7 (15%)     max: 1889.33 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
AS SSD - Sequential Read
min: 1903     avg: 2333     median: 2333.1 (18%)     max: 2763.16 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
min: 123.5     avg: 144.6     median: 144.6 (13%)     max: 165.6 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
min: 53.7     avg: 61     median: 61 (2%)     max: 68.21 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
1798 MB/s (10%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
2568 MB/s (29%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
min: 319     avg: 323.4     median: 323.4 (7%)     max: 327.7 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
min: 422     avg: 458     median: 458 (7%)     max: 494 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
min: 1918     avg: 1953     median: 1953 (13%)     max: 1988 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
min: 2876     avg: 3000     median: 2999.5 (16%)     max: 3123 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Write 4K Q8T8
301 MB/s (6%)
+ 1 benchmarks and specifications   + Show comparison chart
CrystalDiskMark 5.2 / 6 - CDM 6 Read 4K Q8T8
551 MB/s (8%)
+ 1 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_write
min: 121.4     avg: 154.3     median: 154.3 (35%)     max: 187.2 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q1t1_read
min: 54.7     avg: 59.6     median: 59.6 (17%)     max: 64.4 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_write
min: 288     avg: 390.5     median: 390.5 (6%)     max: 493 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd 4k_q32t16_read
min: 550     avg: 1104     median: 1103.5 (14%)     max: 1657 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_write
min: 1563     avg: 1718     median: 1717.5 (17%)     max: 1872 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_read
min: 2229     avg: 2331     median: 2330.5 (27%)     max: 2432 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_write
min: 1865     avg: 1919     median: 1918.5 (13%)     max: 1972 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd seq_q8t1_read
min: 2057     avg: 2254     median: 2253.5 (14%)     max: 2450 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 2458     avg: 2518     median: 2518 (15%)     max: 2578 MB/s
+ 2 benchmarks and specifications   + Show comparison chart
010020030040050060070080090010001100120013001400150016001700180019002000210022002300240025002600Tooltip
- Range of benchmark values
red legend - Average benchmark values
* Smaller numbers mean a higher performance

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

search for model:
v1.35
log 18. 08:30:00

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

#1 no ids found in url (should be separated by "_") +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Sat, 14 Mar 2026 03:44:58 +0100 +0.003s ... 0.003s

#4 composed specs +0.005s ... 0.008s

#5 did output specs +0s ... 0.008s

#6 getting avg benchmarks for device 3946 +0.029s ... 0.038s

#7 got single benchmarks 3946 +0.006s ... 0.044s

#8 got avg benchmarks for devices +0s ... 0.044s

#9 min, max, avg, median took s +3.955s ... 3.999s

#10 return log +0.128s ... 4.126s

Notebook reviews with Kioxia BG5 KBG50ZNS256G

Microsoft Surface Laptop Go 3 in review - Overpriced subnotebook without keyboard illumination

Microsoft Surface Laptop Go 3 in review - Overpriced subnotebook without keyboard illumination

Microsoft updates the compact Surface Laptop Go and equips the 3rd generation with an Alder Lake Core i5 processor. Furthermore, there is now an optional 16 GB of RAM, but the important keyboard backlight is still missing. At the same time, the price has increased further.
Intel Core i5-1235U, Iris Xe G7 80EUs, 12.4", 1.1 kg
Dell Latitude 3520 in review: Core i5 office laptop delivers good runtimes

Dell Latitude 3520 in review: Core i5 office laptop delivers good runtimes

Dell's 15.6 incher offers a Tiger Lake processor, moderate emission rates and good battery runtimes. Windows 10 Pro serves as the operating system (an upgrade to Windows 11 is possible).
Intel Core i5-1135G7, Iris Xe G7 80EUs, 15.6", 1.8 kg

Microsoft Surface Laptop Go 3: Intel Core i5-1235U Intel Iris Xe Graphics G7 80EUs, 12.40", 1.1 kg
  External Review » Microsoft Surface Laptop Go 3

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Klaus Hinum (Update: 2023-02-18)