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SanDisk SD8SB8U-128G-1122

X400 128GB

X400 128GB
BENCHMARKS (920)
MKT (0%)
BUILDS
(1)
BUY • $53

Effective Speed -644%Effective Speed -644%Average Score -1,178%Read -861%, Write -1,900%, 4K Read -204%, 4K Write -192%, Mixed -1,347%, 4K Mixed -212%, SusWrite -3,530%Peak Score -1,271%Read -1,086%, Write -1,817%, 4K Read -388%, 4K Write -250%, Mixed -1,308%, 4K Mixed -344%, SusWrite -3,706%Value & Sentiment User Rating -37%, Market Share -∞%, Price 288%, Value -2,200%Nice To Haves -587%DQ Read -531%, DQ Write -603%, DQ Mixed -802%, ADQ Read -456%, ADQ Write -517%, ADQ Mixed -703%, Age -490%, AS-SSD Total -594%

Average Bench: 73.4% (609^th of 1079)

Based on 920 user benchmarks. Model: SanDisk SD8SB8U128G1122

Poor: 51%Average: 73.4% Great: 93%

Popular builds with this SSD

Good average bench

The SanDisk X400 128GB averaged 26.5% 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 185MB/s

Avg. 4K Random Mixed IO Speed 35.5MB/s

See where your SSD ranks →

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X400 128GB is 42.3%. This is a relatively wide range which indicates that the SanDisk X400 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 87.3MB/s

Avg. Sequential Mixed IO Speed 223MB/s

Average Bench

(Based on 920 samples)

Rank 60973.4%

Min	Avg	Max
337	Read 435	500
96.3	Write 232	335
110	Mixed 223	332
46.4	SusWrite 87.3	120
54% 244 MB/s

Min	Avg	Max
16.9	4K Read 29.4	39.4
31.6	4K Write 70.7	109
19.5	4K Mixed 35.5	49.5
127% 45.2 MB/s

Min	Avg	Max
35.3	DQ Read 308	367
85.1	DQ Write 204	270
44.5	DQ Mixed 185	232
157% 232 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

USA-User, 1 month ago.

119GB free

Firmware: X4162000

SusWrite @10s intervals: 306 98 103 94 91 95 MB/s

85.8% Excellent

Write 306

Mixed 329

SusWrite 131

68% 306 MB/s

4K Read 34.1

4K Write 84.3

4K Mixed 40.3

148% 52.9 MB/s

DQ Read 358

DQ Write 268

DQ Mixed 235

197% 287 MB/s

KAZ-User, 1 month ago.

16GB free

Firmware: X4140000

SusWrite @10s intervals: 109 83 90 85 86 85 MB/s

84.6% Excellent

Write 200

Mixed 180

SusWrite 89.9

52% 236 MB/s

4K Read 36.7

4K Write 89

4K Mixed 41.9

156% 55.9 MB/s

DQ Read 347

DQ Write 200

DQ Mixed 165

152% 238 MB/s

USA-User, 2 months ago.

119GB free

Firmware: X4120000

SusWrite @10s intervals: 242 116 86 96 93 90 MB/s

82.7% Excellent

Write 331

Mixed 316

SusWrite 120

66% 298 MB/s

4K Read 30

4K Write 82.4

4K Mixed 42.8

144% 51.7 MB/s

DQ Read 342

DQ Write 268

DQ Mixed 227

191% 279 MB/s

MEX-User, 14 days ago.

119GB free

Firmware: X4120000

SusWrite @10s intervals: 297 93 89 90 81 92 MB/s

71.7% Very good

Write 312

Mixed 310

SusWrite 124

67% 302 MB/s

4K Read 26.4

4K Write 42.5

4K Mixed 30.8

102% 33.2 MB/s

DQ Read 344

DQ Write 277

DQ Mixed 116

140% 245 MB/s

USA-User, 2 months ago.

98GB free

Firmware: X4120000

SusWrite @10s intervals: 186 90 89 95 92 90 MB/s

71% Very good

Write 305

Mixed 299

SusWrite 107

64% 290 MB/s

4K Read 25.3

4K Write 49.4

4K Mixed 31.2

104% 35.3 MB/s

DQ Read 361

DQ Write 268

DQ Mixed 229

194% 286 MB/s

EGY-User, 21 days ago.

30GB free (System drive)

Firmware: X4120000

SusWrite @10s intervals: 90 75 51 71 44 74 MB/s

57.3% Above average

Write 193

Mixed 167

SusWrite 67.4

46% 209 MB/s

4K Read 19.7

4K Write 38.6

4K Mixed 24

81% 27.4 MB/s

DQ Read 336

DQ Write 191

DQ Mixed 189

161% 239 MB/s

920 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,955,336 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 128GB Builds (Compare 2,441 builds) See popular component choices, score breakdowns and rankings

Gaming 61%

Destroyer

Desktop 79%

Battleship

Workstation 52%

Yacht

Motherboard: Asus H170-PRO - $42

CPU
Core i7-6700Intel $134Bench 72%, 282,363 samples	1,137x
Core i5-6500Intel $56Bench 64%, 241,476 samples	292x
Core i5-6402PIntelBench 68%, 15,913 samples	224x

GPU
GTX 1070Nvidia $278Bench 80%, 1,459,281 samples	285x
GTX 1060-3GBNvidia $119Bench 52%, 627,793 samples	283x
GTX 1060-6GBNvidia $117Bench 56%, 1,368,019 samples	183x

SSD
X400 128GBSanDisk $53Bench 73%, 920 samples	1x

RAM
DDR4 2400 2OZ 2x8GBAdataBench 76%, 26,065 samples	307x
DDR4 2400 2OZ 1x8GBAdataBench 42%, 10,940 samples	123x
Fury DDR4 2133 C14 2x8GBHyperX $125Bench 73%, 59,072 samples	89x

EDIT WITH CUSTOM PC BUILDER

Value: 67% - Good

Total price: $507

Popular X400 128GB compatible motherboards:

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

CPU

GPU

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HDD

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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) September 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.

1079 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 i5-12600K $169	Nvidia RTX 4060 $285	WD Black SN850X M.2 2TB $146
Intel Core i5-12400F $112	Nvidia RTX 4060-Ti $372	WD Black SN850X M.2 1TB $75
Intel Core i5-13600K $248	Nvidia RTX 4070 $278	Crucial T700 M.2 4TB $350

SanDisk SD8SB8U-128G-1122

X400 128GB

Average Bench: 73.4% (609^th of 1079)

Popular builds with this SSD

Good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

Motherboard: Asus H170-PRO - $42

Popular X400 128GB compatible motherboards:

UserBenchmark of the month

How it works

Group Test Results

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Best User Rated

SanDisk SD8SB8U-128G-1122

X400 128GB

Average Bench: 73.4% (609th of 1079)

Popular builds with this SSD

Good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

Motherboard: Asus H170-PRO - $42

Popular X400 128GB compatible motherboards:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Liked (edit your comment) Add link

Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 73.4% (609^th of 1079)