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Sandisk

X400 M.2 128GB

▲ 500 ▼

Release date ≈ Q2 2021.

Average Bench: 64% (762nd of 1080)

Based on 6 user benchmarks.  Model: SanDisk X400 M.2
Poor: 40%Average: 64% Great: 74%

Popular builds with this SSD

Above average average bench

The Sandisk X400 M.2 128GB averaged 35.9% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 178MB/s
Avg. 4K Random Read Speed 25.9MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk X400 M.2 128GB is 33.4%. This is a relatively narrow range which indicates that the Sandisk X400 M.2 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 107MB/s
Avg. Sequential Mixed IO Speed 249MB/s
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Average Bench

(Based on 6 samples)
Rank 76264%
Min Avg Max
309 Read 381 455
108 Write 268 347
200 Mixed 249 299
88.8 SusWrite 107 137
55.9% 251 MB/s
Min Avg Max
14.6 4K Read 25.9 30.1
21.2 4K Write 48.2 76.3
16.8 4K Mixed 29.8 35.4
103% 34.6 MB/s
Min Avg Max
62.6 DQ Read 265 343
98.8 DQ Write 197 230
68.7 DQ Mixed 178 220
147% 213 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
53GB free (System drive)
Firmware: 2012
SusWrite @10s intervals: 178 104 96 103 105 104 MB/s
73.6% Very good
Read 455
Write 333
Mixed 299
SusWrite 115
67% 301 MB/s
4K Read 30.1
4K Write 53.3
4K Mixed 35.4
119% 39.6 MB/s
DQ Read 278
DQ Write 230
DQ Mixed 219
173% 242 MB/s
119GB free
Firmware: 2012
SusWrite @10s intervals: 262 159 106 102 96 96 MB/s
69% Good
Read 406
Write 347
Mixed 286
SusWrite 137
66% 294 MB/s
4K Read 28.4
4K Write 34.1
4K Mixed 34.1
105% 32.2 MB/s
DQ Read 284
DQ Write 228
DQ Mixed 220
174% 244 MB/s
71GB free (System drive)
Firmware: 2012
SusWrite @10s intervals: 100 94 98 91 67 82 MB/s
56.7% Above average
Read 361
Write 108
Mixed 204
SusWrite 88.8
42% 191 MB/s
4K Read 25.7
4K Write 29.8
4K Mixed 23.7
85% 26.4 MB/s
DQ Read 285
DQ Write 196
DQ Mixed 182
152% 221 MB/s
119GB free
Firmware: X415
SusWrite @10s intervals: 256 96 85 88 87 85 MB/s
40.2% Average
Read 309
Write 312
Mixed 293
SusWrite 116
58% 257 MB/s
4K Read 14.6
4K Write 21.2
4K Mixed 16.8
55% 17.5 MB/s
DQ Read 62.6
DQ Write 98.8
DQ Mixed 68.7
55% 76.7 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,278,442 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 X400 M.2 128GB Builds (Compare 523 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 17%
Surfboard
Desktop
Desktop 65%
Destroyer
Workstation
Workstation 18%
Surfboard

Motherboard: Dell Precision T7610

CPU
CPU: Intel Xeon E5-2650 v21stBench 64%, 1,386 samples64x
CPU: Intel Xeon E5-2687W v21stBench 75%, 766 samples64x
CPU: Intel Xeon E5-2680 v21stBench 66%, 1,377 samples40x
GPU
Quadro K4000NvidiaBench 13%, 11,114 samples56x
Quadro K5000NvidiaBench 21%, 3,775 samples42x
Quadro K6000Nvidia  $4,000Bench 44%, 1,173 samples24x
SSD
X400 M.2 128GBSandiskBench 64%, 6 samples1x
RAM
M393B1G70QH0-CMA 8x8GBSamsungBench 94%, 283 samples34x
HMT41GR7AFR4C-RD 8x8GBHynixBench 94%, 307 samples22x
18JSF1G72PZ-1G9E1 4x8GBMicronBench 77%, 512 samples19x
EDIT WITH CUSTOM PC BUILDER

Popular X400 M.2 128GB compatible motherboards:

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Speed Comparisons

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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?
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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?
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The Best
CPUGPUSSD
Intel Core i5-12600K $166Nvidia RTX 4060 $293WD Black SN850X M.2 2TB $150
Intel Core i5-13600K $260Nvidia RTX 4060-Ti $388WD Black SN850X M.2 1TB $89
Intel Core i5-12400F $110Nvidia RTX 4070 $520Crucial T700 M.2 4TB $353
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