SanDisk SD8SB8U-256G-1122

X400 256GB

X400 256GB
BENCHMARKS (2,279)
MKT (0%)
BUILDS
(1)
BUY • $29

Effective Speed -30%Effective Speed -30%Average Score -39%Read -7%, Write -35%, 4K Read -23%, 4K Write -29%, Mixed -60%, 4K Mixed -32%, SusWrite -90%Peak Score -23%Read -2%, Write -6%, 4K Read -10%, 4K Write -12%, Mixed -27%, 4K Mixed -16%, SusWrite -91%Value & Sentiment -358%User Rating -14%, Market Share -1,678%, Price 223%, Value 35%Nice To Haves -20%DQ Read 0%, DQ Write -32%, DQ Mixed -41%, ADQ Read -6%, ADQ Write -33%, ADQ Mixed -35%, Age -3%, AS-SSD Total -10%

Average Bench: 76% (557^th of 1072)

Based on 2,279 user benchmarks. Model: SanDisk SD8SB8U256G1122

Poor: 51%Average: 76% Great: 99%

Popular builds with this SSD

Good average bench

The SanDisk X400 256GB averaged 23.9% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk X400 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 193MB/s

Avg. 4K Random Mixed IO Speed 34.1MB/s

See where your SSD ranks →

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X400 256GB is 47.2%. This is a relatively wide range which indicates that the SanDisk X400 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 156MB/s

Avg. Sequential Mixed IO Speed 224MB/s

Average Bench

(Based on 2,279 samples)

Rank 55776%

Min	Avg	Max
322	Read 428	499
149	Write 301	458
132	Mixed 224	332
65.9	SusWrite 156	203
61.7% 277 MB/s

Min	Avg	Max
15.5	4K Read 28	39.1
28.2	4K Write 67.9	109
16	4K Mixed 34.1	50.2
122% 43.3 MB/s

Min	Avg	Max
142	DQ Read 309	367
99.5	DQ Write 218	272
66	DQ Mixed 193	235
163% 240 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

USA-User, 20 days ago.

126GB free

Firmware: X4120000

SusWrite @10s intervals: 224 195 192 144 152 192 MB/s

89.5% Excellent

Write 457

Mixed 319

SusWrite 183

81% 361 MB/s

4K Read 34.4

4K Write 74.1

4K Mixed 43.3

147% 50.6 MB/s

DQ Read 337

DQ Write 255

DQ Mixed 221

186% 271 MB/s

HUN-User, 28 days ago.

169GB free (System drive)

Firmware: X4140000

SusWrite @10s intervals: 192 180 179 182 172 153 MB/s

88.7% Excellent

Write 466

Mixed 222

SusWrite 176

76% 342 MB/s

4K Read 25.7

4K Write 84.5

4K Mixed 46

143% 52.1 MB/s

DQ Read 343

DQ Write 224

DQ Mixed 233

187% 267 MB/s

ZAF-User, 18 days ago.

75GB free (System drive)

Firmware: X4120000

SusWrite @10s intervals: 146 114 94 121 73 121 MB/s

77.8% Very good

Write 265

Mixed 123

SusWrite 112

54% 245 MB/s

4K Read 33

4K Write 59.7

4K Mixed 39

132% 43.9 MB/s

DQ Read 266

DQ Write 224

DQ Mixed 210

167% 233 MB/s

ROU-User, 6 days ago.

143GB free

Firmware: 2000

SusWrite @10s intervals: 221 191 193 190 192 193 MB/s

66.4% Good

Write 260

Mixed 202

SusWrite 197

58% 260 MB/s

4K Read 24.4

4K Write 41.5

4K Mixed 24.7

91% 30.2 MB/s

DQ Read 273

DQ Write 236

DQ Mixed 237

183% 249 MB/s

USA-User, 24 days ago.

193GB free (System drive)

Firmware: X4140000

SusWrite @10s intervals: 175 164 175 154 167 157 MB/s

51.2% Above average

Write 206

Mixed 149

SusWrite 165

45% 202 MB/s

4K Read 16

4K Write 28.7

4K Mixed 16.9

61% 20.5 MB/s

DQ Read 268

DQ Write 217

DQ Mixed 180

152% 222 MB/s

2,279 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,723,925 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 256GB Builds (Compare 1,511 builds) See popular component choices, score breakdowns and rankings

Gaming 68%

Battle cruiser

Desktop 86%

Aircraft carrier

Workstation 58%

Gunboat

Motherboard: MSI Z170A SLI PLUS (MS-7998) - $140

CPU
Core i7-6700KIntel $180Bench 81%, 588,978 samples	670x
Core i5-6600KIntel $130Bench 72%, 342,244 samples	426x
Core i7-7700KIntel $230Bench 84%, 712,312 samples	84x

GPU
GTX 1070Nvidia $132Bench 80%, 1,459,281 samples	365x
GTX 1060-6GBNvidia $117Bench 56%, 1,368,019 samples	157x
GTX 1080Nvidia $400Bench 102%, 1,082,454 samples	153x

SSD
X400 256GBSanDisk $29Bench 76%, 2,279 samples	1x

RAM
Vengeance LPX DDR4 3000 C15 2x8GBCorsair $43Bench 82%, 606,405 samples	64x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair $42Bench 85%, 653,654 samples	49x
Ripjaws V DDR4 2400 C15 2x8GBG.SKILL $31Bench 71%, 98,777 samples	49x

EDIT WITH CUSTOM PC BUILDER

Value: 111% - Outstanding

Total price: $524

Popular X400 256GB 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.

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- 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
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- Reports are generated and presented on userbenchmark.com
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Solid State Drive Rankings (Price vs Performance) April 2024 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.
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Fastest real world speed - Real World Speed measures performance for typical consumers.

1072 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 i5-13600K $273	Nvidia RTX 4060 $295	Crucial MX500 250GB $40
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177	Nvidia RTX 4070 $539	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $42	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

SanDisk SD8SB8U-256G-1122

X400 256GB

Average Bench: 76% (557^th of 1072)

Popular builds with this SSD

Good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

Motherboard: MSI Z170A SLI PLUS (MS-7998) - $140

Popular X400 256GB compatible motherboards:

UserBenchmark of the month

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SanDisk SD8SB8U-256G-1122

X400 256GB

Average Bench: 76% (557th of 1072)

Popular builds with this SSD

Good average bench

Strengths

Average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

Prices

CHOOSE A COMPONENT:

Motherboard: MSI Z170A SLI PLUS (MS-7998) - $140

Popular X400 256GB compatible motherboards:

UserBenchmark of the month

How it works

Group Test Results

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Comments

Terrible (edit your comment) Add link

Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 76% (557^th of 1072)