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Kbg40zns256g

NVMe TOSHIBA 256GB

▲ 500 ▼

Release date ≈ Q2 2019.

Average Bench: 132% (183rd of 1080)

Based on 2,842 user benchmarks.  Model: KBG40ZNS256G NVMe TOSHIBA 256GB
Poor: 66%Average: 132% Great: 193%

Popular builds with this SSD

Outstanding average bench

The Kbg40zns256g NVMe TOSHIBA 256GB averaged 32.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Kbg40zns256g NVMe TOSHIBA 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 444MB/s
Avg. 4K-64Thread Read Speed 757MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Kbg40zns256g NVMe TOSHIBA 256GB is 127%. This is a particularly wide range which indicates that the Kbg40zns256g NVMe TOSHIBA 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 350MB/s
Avg. 4K Random Write Speed 81.7MB/s

Average Bench

(Based on 2,842 samples)
Rank 183132%
Min Avg Max
228 Read 903 1,466
63 Write 597 1,278
81.2 Mixed 675 1,234
51.7 SusWrite 350 560
141% 631 MB/s
Min Avg Max
11.7 4K Read 39.2 54
15.9 4K Write 81.7 152
14.9 4K Mixed 47.5 74
163% 56.1 MB/s
Min Avg Max
280 DQ Read 757 1,376
60.6 DQ Write 362 743
75.9 DQ Mixed 444 697
360% 521 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
158GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 400 779 580 363 200 147 MB/s
135% Outstanding
Read 933
Write 1,030
Mixed 993
SusWrite 412
190% 842 MB/s
4K Read 34.7
4K Write 60.9
4K Mixed 41.2
138% 45.6 MB/s
DQ Read 808
DQ Write 532
DQ Mixed 598
466% 646 MB/s
160GB free (System drive)
Firmware: 10410104 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 595 512 1087 1046 1085 1103 MB/s
135% Outstanding
Read 379
Write 112
Mixed 1,064
SusWrite 905
140% 615 MB/s
4K Read 32.1
4K Write 78.5
4K Mixed 44.3
147% 51.6 MB/s
DQ Read 516
DQ Write 310
DQ Mixed 407
305% 411 MB/s
78GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 565 255 168 148 144 114 MB/s
131% Outstanding
Read 886
Write 896
Mixed 877
SusWrite 232
162% 723 MB/s
4K Read 51.2
4K Write 79.7
4K Mixed 67
206% 66 MB/s
DQ Read 451
DQ Write 273
DQ Mixed 257
220% 327 MB/s
143GB free (System drive)
Firmware: 10410101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 305 335 497 184 414 286 MB/s
127% Outstanding
Read 1,200
Write 567
Mixed 861
SusWrite 337
164% 741 MB/s
4K Read 33.4
4K Write 44.2
4K Mixed 43.9
130% 40.5 MB/s
DQ Read 477
DQ Write 278
DQ Mixed 329
258% 361 MB/s
164GB free (System drive)
Firmware: 10410106 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 397 426 482 414 280 257 MB/s
103% Outstanding
Read 218
Write 440
Mixed 626
SusWrite 376
95% 415 MB/s
4K Read 44.7
4K Write 92.8
4K Mixed 53.1
185% 63.5 MB/s
DQ Read 464
DQ Write 179
DQ Mixed 383
267% 342 MB/s
108GB free (System drive)
Firmware: 10410101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 356 298 410 365 240 189 MB/s
85.1% Excellent
Read 789
Write 709
Mixed 246
SusWrite 310
114% 514 MB/s
4K Read 12.2
4K Write 33.9
4K Mixed 27.1
71% 24.4 MB/s
DQ Read 333
DQ Write 187
DQ Mixed 234
181% 251 MB/s
94GB free (System drive)
Firmware: 10410101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 267 313 349 293 269 219 MB/s
82.2% Excellent
Read 766
Write 301
Mixed 514
SusWrite 285
103% 466 MB/s
4K Read 24
4K Write 31.5
4K Mixed 20.9
80% 25.5 MB/s
DQ Read 290
DQ Write 150
DQ Mixed 229
168% 223 MB/s
119GB free (System drive)
Firmware: 10410101 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 314 166 254 201 186 163 MB/s
38.7% Below average
Read 287
Write 244
Mixed 263
SusWrite 214
57% 252 MB/s
4K Read 4.9
4K Write 13.2
4K Mixed 6.4
23% 8.17 MB/s
DQ Read 123
DQ Write 202
DQ Mixed 209
145% 178 MB/s
2,842 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,463,884 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 3,011 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 10%
Tree trunk
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 10%
Tree trunk

System: Dell G3 3590

CPU
Core i5-9300HIntelBench 65%, 116,682 samples1,561x
Core i7-9750HIntelBench 73%, 328,182 samples1,449x
Core i7-9850HIntelBench 77%, 9,974 samples1x
GPU
UHD Graphics 630IntelBench 5%, 506,702 samples1,515x
GTX 1660-Ti (Mobile Max-Q)NvidiaBench 57%, 12,899 samples877x
GTX 1650 (Mobile)NvidiaBench 41%, 92,838 samples457x
SSD
NVMe TOSHIBA 256GBKbg40zns256gBench 132%, 2,842 samples1x
RAM
HMA851S6JJR6N-VK 2x4GBUnknownBench 62%, 3,853 samples254x
HMA81GS6JJR8N-VK 2x8GBUnknownBench 74%, 13,906 samples188x
KKN2NM-MIE 2x4GBUnknownBench 59%, 2,182 samples179x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe TOSHIBA 256GB systems:

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 Frequently Asked Questions

Storage Devices FAQ
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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