Today's hottest
Amazon Ebay
deals
TEST
YOUR SSD
ADD TO PC
BUILD

Sandisk

Z400s M.2 2280 256GB

▲ 500 ▼

Release date ≈ Q4 2015.

Average Bench: 65.3% (746th of 1080)

Based on 2,644 user benchmarks.  Model: SanDisk Z400s M.2 2280 256GB
Poor: 48%Average: 65.3% Great: 80%

Popular builds with this SSD

Above average average bench

The Sandisk Z400s M.2 2280 256GB averaged 34.6% 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 81.1MB/s
Avg. 4K-64Thread Write Speed 246MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Sandisk Z400s M.2 2280 256GB is 31.2%. This is a relatively narrow range which indicates that the Sandisk Z400s M.2 2280 256GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 12MB/s
Avg. Sequential Mixed IO Speed 205MB/s

Average Bench

(Based on 2,644 samples)
Rank 74665.3%
Min Avg Max
329 Read 415 488
213 Write 274 309
171 Mixed 205 233
119 SusWrite 266 313
64.7% 290 MB/s
Min Avg Max
10.6 4K Read 20.5 26.5
26.9 4K Write 65.7 97.1
8.6 4K Mixed 12 15
81.1% 32.7 MB/s
Min Avg Max
150 DQ Read 169 210
159 DQ Write 246 279
72.7 DQ Mixed 81.1 86
96.7% 165 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
19GB free (System drive)
Firmware: Z2321012
SusWrite @10s intervals: 296 281 316 316 317 301 MB/s
79.9% Very good
Read 492
Write 306
Mixed 214
SusWrite 304
73% 329 MB/s
4K Read 27
4K Write 98.6
4K Mixed 15.4
113% 47 MB/s
DQ Read 162
DQ Write 254
DQ Mixed 85.3
99% 167 MB/s
63GB free (System drive)
Firmware: Z2327012
SusWrite @10s intervals: 224 289 305 307 306 309 MB/s
68.4% Good
Read 468
Write 298
Mixed 217
SusWrite 290
71% 318 MB/s
4K Read 20.6
4K Write 47.5
4K Mixed 14.2
74% 27.4 MB/s
DQ Read 180
DQ Write 273
DQ Mixed 84.8
104% 179 MB/s
202GB free (System drive)
Firmware: Z2327012
SusWrite @10s intervals: 267 273 281 272 272 271 MB/s
65.3% Good
Read 433
Write 263
Mixed 208
SusWrite 273
66% 294 MB/s
4K Read 23
4K Write 60
4K Mixed 11.7
82% 31.6 MB/s
DQ Read 162
DQ Write 191
DQ Mixed 80.9
88% 145 MB/s
55GB free
Firmware: Z2321012
SusWrite @10s intervals: 65 65 67 63 71 64 MB/s
34.6% Below average
Read 450
Write 63.9
Mixed 99.4
SusWrite 65.8
37% 170 MB/s
4K Read 26.4
4K Write 2.9
4K Mixed 3.3
46% 10.9 MB/s
2,644 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,602,743 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 M.2 2280 256GB Builds (Compare 3,036 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 6%
Tree trunk
Desktop
Desktop 55%
Yacht
Workstation
Workstation 5%
Tree trunk

System: Dell Inspiron 7559

CPU
Core i7-6700HQIntelBench 59%, 320,434 samples2,275x
Core i5-6300HQIntelBench 54%, 41,531 samples761x
GPU
HD 530 (Mobile Skylake)IntelBench 5%, 213,495 samples1,909x
GTX 960MNvidiaBench 16%, 73,363 samples1,125x
RX 580AMD  $131Bench 52%, 360,351 samples1x
SSD
Z400s M.2 2280 256GBSandiskBench 65%, 2,644 samples170x
RAM
HMT41GS6BFR8A-PB 1x8GBHynixBench 28%, 77,702 samples348x
HMT41GS6BFR8A-PB 2x8GBHynixBench 52%, 34,976 samples259x
KN2M64-ETB 1x8GBUnknownBench 27%, 1,673 samples159x
EDIT WITH CUSTOM PC BUILDER

Popular Z400s M.2 2280 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.

UserBenchmark of the month

Gaming Desktop ProGaming

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) November 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.

 Comments

Added n/a ago.
Your
opinion?
▲Like ▼Dislike
Ready to retire
Age: 9 years

Speed Comparisons

vs WD Black SN850X M.2 2TB
vs WD Black SN850X M.2 1TB
vs Crucial T700 M.2 4TB
vs WD Black SN850X M.2 4TB
vs Samsung 990 Pro M.2 2TB
vs Samsung 990 Pro M.2 4TB
vs Samsung 990 Pro M.2 1TB
vs Crucial T705 M.2 2TB
vs Crucial T705 M.2 1TB

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?
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 »

 Best User Rated
Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark the gold standard for users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
CPUGPUSSD
Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $130
Intel Core i5-12600K $160Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $330
Today's hottest
Amazon Ebay
deals
If you buy something via a price link, UserBenchmark may earn a commission
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback