Sandisk

Z400s 2.5 7MM 256GB

Z400s 2.5 7MM 256GB
BENCHMARKS (1,730)
MKT (0%)
BUILDS
(0)

Effective Speed -54%Effective Speed -54%Average Score -78%Read -12%, Write -48%, 4K Read -79%, 4K Write -41%, Mixed -76%, 4K Mixed -282%, SusWrite -11%Peak Score -75%Read -4%, Write -54%, 4K Read -56%, 4K Write -22%, Mixed -80%, 4K Mixed -283%, SusWrite -23%Value & Sentiment -435%User Rating -14%, Market Share -856%Nice To Haves -99%DQ Read -82%, DQ Write -27%, DQ Mixed -285%, ADQ Read -99%, ADQ Write -16%, ADQ Mixed -224%, Age -8%, AS-SSD Total -48%

Average Bench: 64% (754^th of 1072)

Based on 1,730 user benchmarks. Model: SanDisk Z400s 2.5 7MM 256GB

Poor: 47%Average: 64% Great: 80%

Popular builds with this SSD

Above average average bench

The Sandisk Z400s 2.5 7MM 256GB averaged 36.0% 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 80.2MB/s

Avg. 4K-64Thread Write Speed 249MB/s

See where your SSD ranks →

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk Z400s 2.5 7MM 256GB is 32.9%. This is a relatively narrow range which indicates that the Sandisk Z400s 2.5 7MM 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 11.8MB/s

Avg. Sequential Mixed IO Speed 204MB/s

Average Bench

(Based on 1,730 samples)

Rank 75464%

Min	Avg	Max
312	Read 408	489
211	Write 274	315
166	Mixed 204	235
166	SusWrite 267	315
64.3% 288 MB/s

Min	Avg	Max
9.3	4K Read 19.2	27.6
20.1	4K Write 62	100
8.4	4K Mixed 11.8	15.2
77.1% 31 MB/s

Min	Avg	Max
127	DQ Read 164	202
140	DQ Write 249	283
68.7	DQ Mixed 80.2	86
96.2% 165 MB/s

User Benchmarks

Bench

Sequential

Random 4k

Deep queue 4k

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

USA-User, 21 days ago.

370GB free

Firmware: Z2327012

SusWrite @10s intervals: 481 483 485 487 414 288 MB/s

118% Outstanding

Write 488

Mixed 467

SusWrite 440

108% 478 MB/s

4K Read 40.3

4K Write 93.1

4K Mixed 50.2

175% 61.2 MB/s

DQ Read 387

DQ Write 361

DQ Mixed 368

278% 372 MB/s

USA-User, 20 days ago.

238GB free

Firmware: Z2327012

SusWrite @10s intervals: 310 311 311 317 316 316 MB/s

74.4% Very good

Write 311

Mixed 218

SusWrite 314

74% 331 MB/s

4K Read 24

4K Write 68.1

4K Mixed 14.2

91% 35.4 MB/s

DQ Read 164

DQ Write 278

DQ Mixed 84.6

103% 176 MB/s

USA-User, 10 hrs ago.

111GB free (System drive)

Firmware: Z2329012

SusWrite @10s intervals: 278 284 292 293 286 289 MB/s

62% Good

Write 273

Mixed 207

SusWrite 287

65% 293 MB/s

4K Read 17.2

4K Write 45.4

4K Mixed 11.4

65% 24.7 MB/s

DQ Read 170

DQ Write 254

DQ Mixed 83.6

99% 169 MB/s

USA-User, 1 month ago.

49GB free (System drive)

Firmware: Z2327012

SusWrite @10s intervals: 267 284 300 158 1.3 69 MB/s

61% Good

Write 277

Mixed 228

SusWrite 180

61% 275 MB/s

4K Read 21.4

4K Write 61.7

4K Mixed 13.5

82% 32.2 MB/s

DQ Read 158

DQ Write 273

DQ Mixed 84.2

101% 172 MB/s

USA-User, 5 days ago.

180GB free (System drive)

Firmware: Z2327012

SusWrite @10s intervals: 226 176 219 232 148 116 MB/s

41.7% Average

Write 198

Mixed 162

SusWrite 186

49% 222 MB/s

4K Read 10.6

4K Write 22

4K Mixed 5.1

34% 12.6 MB/s

DQ Read 137

DQ Write 172

DQ Mixed 80

81% 130 MB/s

IND-User, 27 days ago.

118GB free (System drive)

Firmware: Z2327012

SusWrite @10s intervals: 182 175 223 213 119 102 MB/s

40.9% Average

Write 245

Mixed 167

SusWrite 169

49% 221 MB/s

4K Read 9.7

4K Write 29.3

4K Mixed 8.2

41% 15.7 MB/s

DQ Read 141

DQ Write 146

DQ Mixed 78.9

77% 122 MB/s

1,730 MORE »

Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,656,523 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 Z400s 2.5 7MM 256GB Builds (Compare 255 builds) See popular component choices, score breakdowns and rankings

Gaming 5%

Tree trunk

Desktop 47%

Yacht

Workstation 5%

Tree trunk

System: Dell Inspiron 13-7359

CPU
Core i7-6500UIntelBench 46%, 102,213 samples	147x
Core i5-6200UIntelBench 41%, 135,462 samples	78x
Core i3-6100UIntelBench 43%, 24,116 samples	25x

GPU
HD 520 (Mobile Skylake)IntelBench 4%, 362,113 samples	250x
HD Graphics 510IntelBench 2%, 6,504 samples	5x

SSD
Z400s 2.5 7MM 256GBSandiskBench 64%, 1,730 samples	63x

RAM
HMT41GS6BFR8A-PB 1x8GBHynixBench 28%, 77,702 samples	62x
M471B1G73QH0-YK0 1x8GBSamsungBench 28%, 40,451 samples	50x
M471B1G73DB0-YK0 1x8GBSamsungBench 28%, 44,908 samples	29x

EDIT WITH CUSTOM PC BUILDER

Popular Z400s 2.5 7MM 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.

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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) 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.
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.

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 $279	Nvidia RTX 4060 $300	Crucial MX500 250GB $40
Intel Core i5-12400F $134	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $184	Nvidia RTX 4070 $409	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35	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

Z400s 2.5 7MM 256GB

Average Bench: 64% (754^th of 1072)

Popular builds with this SSD

Above average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 13-7359

Popular Z400s 2.5 7MM 256GB systems:

UserBenchmark of the month

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Sandisk

Z400s 2.5 7MM 256GB

Average Bench: 64% (754th of 1072)

Popular builds with this SSD

Above average average bench

Strengths

Above average consistency

Weaknesses

Average Bench

Market Share (See Leaders)

CHOOSE A COMPONENT:

System: Dell Inspiron 13-7359

Popular Z400s 2.5 7MM 256GB systems:

UserBenchmark of the month

How it works

Group Test Results

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Speed Comparisons

Frequently Asked Questions

Best User Rated

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Average Bench: 64% (754^th of 1072)