Kbg40zns256g

NVMe KIOXIA 256GB

NVMe KIOXIA 256GB
BENCHMARKS (8,510)
MKT (0.1%)
BUILDS
(0)

Effective Speed +57% Effective Speed 57%Average Score +72% Read 128%, Write 122%, 4K Read 21%, 4K Write 13%, Mixed 149%, 4K Mixed 21%, SusWrite 51%Peak Score +110% Read 205%, Write 205%, 4K Read 32%, 4K Write 32%, Mixed 209%, 4K Mixed 32%, SusWrite 53%Value & Sentiment -108%User Rating -13%, Market Share -203%Nice To Haves +146% DQ Read 244%, DQ Write 120%, DQ Mixed 114%, ADQ Read 154%, ADQ Write 54%, ADQ Mixed 109%, Age 208%, AS-SSD Total 169%

Average Bench: 156% (137^th of 1058)

Based on 8,510 user benchmarks. Model: KBG40ZNS256G NVMe KIOXIA 256GB

Poor: 89%Average: 156% Great: 212%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns256g NVMe KIOXIA 256GB averaged 55.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg40zns256g NVMe KIOXIA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 542MB/s

Avg. 4K-64Thread Read Speed 819MB/s

See where your SSD ranks →

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns256g NVMe KIOXIA 256GB is 123%. This is a particularly wide range which indicates that the Kbg40zns256g NVMe KIOXIA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 447MB/s

Avg. 4K Random Write Speed 99.2MB/s

Average Bench

(Based on 8,510 samples)

Rank 137156%

Min	Avg	Max
452	Read 1,058	1,543
150	Write 907	1,480
187	Mixed 902	1,307
68.7	SusWrite 447	587
186% 829 MB/s

Min	Avg	Max
20.5	4K Read 42	56.6
37.4	4K Write 99.2	158
27.5	4K Mixed 54.9	76.8
187% 65.4 MB/s

Min	Avg	Max
394	DQ Read 819	1,264
97.2	DQ Write 442	787
108	DQ Mixed 542	706
427% 601 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

The fastest SSD (mainstream) averages a speed of 100%

POL-User, 4 hrs ago.

167GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 1070 799 394 411 411 410 MB/s

220% Outstanding

Write 1,489

Mixed 1,310

SusWrite 582

277% 1,236 MB/s

4K Read 51.3

4K Write 137

4K Mixed 70.4

240% 86.3 MB/s

DQ Read 1,284

DQ Write 831

DQ Mixed 703

620% 940 MB/s

MEX-User, 5 mins ago.

169GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 873 863 400 387 405 407 MB/s

193% Outstanding

Write 886

Mixed 1,007

SusWrite 556

195% 867 MB/s

4K Read 57.1

4K Write 151

4K Mixed 77

265% 95.1 MB/s

DQ Read 1,111

DQ Write 506

DQ Mixed 702

549% 773 MB/s

USA-User, 5 hrs ago.

128GB free (System drive)

Firmware: 10410104 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 832 846 902 710 894 338 MB/s

180% Outstanding

Write 202

Mixed 586

SusWrite 754

161% 729 MB/s

4K Read 11.6

4K Write 93.2

4K Mixed 56.6

139% 53.8 MB/s

DQ Read 1,265

DQ Write 245

DQ Mixed 534

449% 682 MB/s

THA-User, 11 hrs ago.

118GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 747 750 471 389 392 394 MB/s

179% Outstanding

Write 844

Mixed 797

SusWrite 524

182% 812 MB/s

4K Read 54.6

4K Write 144

4K Mixed 72.8

252% 90.5 MB/s

DQ Read 744

DQ Write 391

DQ Mixed 442

362% 526 MB/s

TUN-User, 6 hrs ago.

205GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 1104 799 405 410 407 405 MB/s

173% Outstanding

Write 834

Mixed 751

SusWrite 588

165% 729 MB/s

4K Read 49.2

4K Write 120

4K Mixed 66.7

223% 78.5 MB/s

DQ Read 1,126

DQ Write 591

DQ Mixed 695

560% 804 MB/s

IDN-User, 12 hrs ago.

161GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 806 737 473 380 401 404 MB/s

173% Outstanding

Write 1,130

Mixed 1,036

SusWrite 533

220% 982 MB/s

4K Read 38.4

4K Write 131

4K Mixed 49

190% 72.9 MB/s

DQ Read 1,028

DQ Write 454

DQ Mixed 712

535% 731 MB/s

TUN-User, 6 hrs ago.

205GB free (System drive)

Firmware: 10410105 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 1023 806 407 407 390 409 MB/s

171% Outstanding

Write 933

Mixed 817

SusWrite 574

173% 764 MB/s

4K Read 48.8

4K Write 121

4K Mixed 66.7

223% 78.8 MB/s

DQ Read 1,112

DQ Write 579

DQ Mixed 676

548% 789 MB/s

DEU-User, 8 hrs ago.

64GB free (System drive)

Firmware: 10410104 Max speed: PCIe 5,000 MB/s

SusWrite @10s intervals: 481 369 474 346 319 200 MB/s

135% Outstanding

Write 504

Mixed 315

SusWrite 365

126% 571 MB/s

4K Read 35.4

4K Write 71.6

4K Mixed 52.2

158% 53.1 MB/s

DQ Read 592

DQ Write 268

DQ Mixed 610

404% 490 MB/s

8,510 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,501,214 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 256GB Builds (Compare 4,338 builds) See popular component choices, score breakdowns and rankings.

Gaming 8%

Tree trunk

Desktop 67%

Battle cruiser

Workstation 8%

Tree trunk

System: Dell Inspiron 3593

CPU
Core i5-1035G1IntelBench 64%, 34,671 samples	2,297x
Core i7-1065G7IntelBench 65%, 41,684 samples	1,243x
Core i3-1005G1IntelBench 59%, 14,257 samples	797x

GPU
UHD G1IntelBench 6%, 39,699 samples	2,598x
Iris Plus G7IntelBench 11%, 33,343 samples	947x
GeForce MX230NvidiaBench 11%, 4,488 samples	791x

SSD
NVMe KIOXIA 256GBKbg40zns256gBench 156%, 8,510 samples	391x

RAM
HMA81GS6DJR8N-VK 1x8GBHynixBench 41%, 7,398 samples	530x
HMA81GS6JJR8N-VK 1x8GBHynixBench 40%, 40,975 samples	469x
HMA851S6JJR6N-VK 1x4GBHynixBench 31%, 4,237 samples	325x

EDIT WITH CUSTOM PC BUILDER

Popular NVMe KIOXIA 256GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

Gaming

Desktop

ProGaming

CPU

GPU

SSD

HDD

RAM

USB

How it works

- Download and run UserBenchMark.
- CPU tests include: integer, floating and string.
- GPU tests include: six 3D game simulations.
- Drive tests include: read, write, sustained write and mixed IO.
- RAM tests include: single/multi core bandwidth and latency.
- SkillBench (space shooter) tests user input accuracy.
- Reports are generated and presented on userbenchmark.com.
- Identify the strongest components in your PC.
- See speed test results from other users.
- Compare your components to the current market leaders.
- Explore your best upgrade options with a virtual PC build.
- Compare your in-game FPS to other users with your hardware.

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]

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.

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

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?

What is the effective SSD speed index?

How is the AS SSD write score calculated?

How is the AS SSD read score calculated?

How is the AS SSD total score calculated?

ALL FAQs »

CPU	GPU	SSD
Intel Core i5-11600K $270	Nvidia RTX 3070 $500	Crucial MX500 250GB $45
Intel Core i5-11400F $260	Nvidia RTX 3060-Ti $400	Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394	Nvidia RTX 3080 $700	Samsung 850 Evo 120GB $183

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80	G.SKILL Trident Z DDR4 3200 C14 4x16GB $649	SanDisk Ultra Fit 32GB $16

Kbg40zns256g

NVMe KIOXIA 256GB

Average Bench: 156% (137^th of 1058)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 3593

Popular NVMe KIOXIA 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

Kbg40zns256g

NVMe KIOXIA 256GB

Average Bench: 156% (137th of 1058)

Popular builds with this SSD

Outstanding average bench

Strengths

Terrible consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 3593

Popular NVMe KIOXIA 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 156% (137^th of 1058)