Today's hottest
Amazon Ebay
deals
TEST
YOUR SSD
ADD TO PC
BUILD

Kbg20zms256g

NVMe TOSHIBA 256GB

▲ 500 ▼

Release date ≈ Q4 2017.

Average Bench: 103% (252nd of 1080)

Based on 193 user benchmarks.  Model: KBG20ZMS256G NVMe TOSHIBA 256GB
Poor: 48%Average: 103% Great: 134%

Popular builds with this SSD

Outstanding average bench

The Kbg20zms256g NVMe TOSHIBA 256GB averaged 2.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg20zms256g NVMe TOSHIBA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 246MB/s
Avg. 4K-64Thread Read Speed 467MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg20zms256g NVMe TOSHIBA 256GB is 85.5%. This is a particularly wide range which indicates that the Kbg20zms256g NVMe TOSHIBA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 361MB/s
Avg. Sequential Write Speed 404MB/s

Average Bench

(Based on 193 samples)
Rank 252103%
Min Avg Max
412 Read 628 810
113 Write 404 564
81 Mixed 430 608
30.5 SusWrite 361 571
102% 456 MB/s
Min Avg Max
15.1 4K Read 31.5 41.8
6.05 4K Write 73.8 106
8.07 4K Mixed 36.2 53
133% 47.2 MB/s
Min Avg Max
127 DQ Read 467 571
101 DQ Write 224 317
23.9 DQ Mixed 246 340
209% 313 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
87GB free (System drive)
Firmware: ACDA0101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 436 346 446 595 467 395 MB/s
136% Outstanding
Read 660
Write 495
Mixed 519
SusWrite 448
119% 530 MB/s
4K Read 38.5
4K Write 137
4K Mixed 53.4
199% 76.2 MB/s
DQ Read 572
DQ Write 363
DQ Mixed 332
284% 422 MB/s
125GB free (System drive)
Firmware: ACDA0101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 540 479 552 526 477 424 MB/s
110% Outstanding
Read 634
Write 427
Mixed 452
SusWrite 500
113% 503 MB/s
4K Read 28
4K Write 57.1
4K Mixed 35.3
118% 40.1 MB/s
DQ Read 538
DQ Write 269
DQ Mixed 315
257% 374 MB/s
91GB free (System drive)
Firmware: ACDA0102 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 312 305 246 323 215 154 MB/s
69.8% Good
Read 448
Write 405
Mixed 358
SusWrite 259
82% 367 MB/s
4K Read 19.1
4K Write 38.3
4K Mixed 27
84% 28.1 MB/s
DQ Read 304
DQ Write 129
DQ Mixed 183
144% 205 MB/s
55GB free (System drive)
Firmware: ACDA0101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 63 43 29 42 30 30 MB/s
55.9% Above average
Read 523
Write 145
Mixed 10.2
SusWrite 39.4
38% 179 MB/s
4K Read 17.3
4K Write 61.9
4K Mixed 18.6
83% 32.6 MB/s
DQ Read 277
DQ Write 66
DQ Mixed 74
80% 139 MB/s
193 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,581,463 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 TOSHIBA 256GB Builds (Compare 68 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 8%
Tree trunk
Desktop
Desktop 48%
Yacht
Workstation
Workstation 8%
Tree trunk

System: Dell Latitude 7285

CPU
Core i7-7Y75IntelBench 44%, 2,904 samples50x
Core i5-7Y57IntelBench 48%, 407 samples15x
Core i5-7Y54IntelBench 47%, 1,509 samples3x
GPU
HD 615 (Mobile Kaby Lake)IntelBench 3%, 11,115 samples68x
SSD
NVMe TOSHIBA 256GBKbg20zms256gBench 103%, 193 samples15x
RAM
K4EBE304EB-EGCF 2x8GBSamsungBench 59%, 5,177 samples16x
H9CCNNNCLJALAR-NUD 2x8GBHynixBench 60%, 123 samples16x
MT52L1G32D4PG-107 2x8GBMicronBench 56%, 2,777 samples14x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe TOSHIBA 256GB systems:

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

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

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) November 2024 SSD Rankings

Welcome to our 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.

 Comments

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 7 years

Speed Comparisons

vs WD Black SN850X M.2 2TB
vs WD Black SN850X M.2 1TB
vs Crucial T700 M.2 4TB
vs WD Black SN850X M.2 4TB
vs Samsung 990 Pro M.2 2TB
vs Samsung 990 Pro M.2 4TB
vs Samsung 990 Pro M.2 1TB
vs Crucial T705 M.2 2TB
vs Crucial T705 M.2 1TB

1080 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 »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-12600K $165Nvidia RTX 4060 $280WD Black SN850X M.2 2TB $129
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $389
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback