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

SanDisk SD7SN3Q-256G-1002

X300s SATA M.2 256GB

▲ 502 ▼

Release date ≈ Q1 2015.

Average Bench: 76.8% (547th of 1080)

Based on 785 user benchmarks.  Model: SanDisk SD7SN3Q256G1002
Poor: 55%Average: 76.8% Great: 98%

Popular builds with this SSD

Good average bench

The SanDisk X300s SATA M.2 256GB averaged 23.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk X300s SATA M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 133MB/s
Avg. 4K Random Read Speed 23.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk X300s SATA M.2 256GB is 43.2%. This is a relatively wide range which indicates that the SanDisk X300s SATA M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 229MB/s
Avg. Sustained Write Speed 299MB/s

Average Bench

(Based on 785 samples)
Rank 54776.8%
Min Avg Max
346 Read 428 478
238 Write 349 422
155 Mixed 229 288
131 SusWrite 299 414
73% 326 MB/s
Min Avg Max
12.2 4K Read 23.7 32.3
24.8 4K Write 53.9 96
14.2 4K Mixed 26 35.9
97.7% 34.5 MB/s
Min Avg Max
124 DQ Read 283 350
117 DQ Write 236 309
46.4 DQ Mixed 133 154
134% 217 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
133GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 380 339 327 343 353 332 MB/s
95.8% Outstanding
Read 484
Write 429
Mixed 262
SusWrite 346
85% 380 MB/s
4K Read 31.6
4K Write 79.5
4K Mixed 36.2
136% 49.1 MB/s
DQ Read 332
DQ Write 276
DQ Mixed 148
153% 252 MB/s
87GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 385 381 344 301 281 273 MB/s
89.5% Excellent
Read 441
Write 367
Mixed 244
SusWrite 327
77% 345 MB/s
4K Read 29.7
4K Write 72.6
4K Mixed 34.1
127% 45.5 MB/s
DQ Read 341
DQ Write 238
DQ Mixed 152
150% 243 MB/s
23GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 275 186 143 118 96 90 MB/s
86.5% Excellent
Read 477
Write 358
Mixed 247
SusWrite 151
68% 308 MB/s
4K Read 33.8
4K Write 97.9
4K Mixed 38.6
152% 56.8 MB/s
DQ Read 281
DQ Write 245
DQ Mixed 147
142% 224 MB/s
39GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 216 150 141 141 132 130 MB/s
74.5% Very good
Read 489
Write 268
Mixed 169
SusWrite 152
60% 270 MB/s
4K Read 29.5
4K Write 59.6
4K Mixed 30
115% 39.7 MB/s
DQ Read 290
DQ Write 186
DQ Mixed 137
129% 204 MB/s
137GB free
Firmware: X2170002
SusWrite @10s intervals: 351 360 338 364 340 386 MB/s
71.3% Very good
Read 448
Write 396
Mixed 256
SusWrite 356
82% 364 MB/s
4K Read 20.8
4K Write 33.6
4K Mixed 22.9
79% 25.8 MB/s
DQ Read 188
DQ Write 139
DQ Mixed 134
108% 154 MB/s
66GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 340 326 354 341 310 304 MB/s
66.6% Good
Read 368
Write 341
Mixed 226
SusWrite 329
71% 316 MB/s
4K Read 14.6
4K Write 39.6
4K Mixed 17.1
65% 23.8 MB/s
DQ Read 324
DQ Write 214
DQ Mixed 149
144% 229 MB/s
24GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 287 288 257 261 256 255 MB/s
56.6% Above average
Read 374
Write 353
Mixed 214
SusWrite 267
68% 302 MB/s
4K Read 14.3
4K Write 36.9
4K Mixed 16.5
62% 22.6 MB/s
DQ Read 178
DQ Write 101
DQ Mixed 89.1
80% 123 MB/s
16GB free (System drive)
Firmware: X2170002
SusWrite @10s intervals: 173 132 79 69 76 79 MB/s
55.8% Above average
Read 416
Write 224
Mixed 152
SusWrite 102
49% 224 MB/s
4K Read 17.5
4K Write 41.3
4K Mixed 17.4
71% 25.4 MB/s
DQ Read 337
DQ Write 182
DQ Mixed 138
135% 219 MB/s
785 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 77,577,302 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 X300s SATA M.2 256GB Builds (Compare 207 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 5%
Tree trunk
Desktop
Desktop 45%
Speed boat
Workstation
Workstation 5%
Tree trunk

System: Asus UX305FA

CPU
Core M-5Y10cIntelBench 44%, 3,050 samples145x
Core M-5Y10IntelBench 47%, 478 samples41x
Core M-5Y71IntelBench 45%, 3,052 samples21x
GPU
Core M HD 5300IntelBench 3%, 7,223 samples207x
SSD
X300s SATA M.2 256GBSanDiskBench 77%, 785 samples70x
RAM
2x4GBUnknownBench 39%, 424,126 samples88x
2x4GBHynixBench 60%, 11,918 samples41x
2x2GBHynixBench 40%, 7,517 samples27x
EDIT WITH CUSTOM PC BUILDER

Popular X300s SATA M.2 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 i5-12600K $165Nvidia RTX 4060 $290WD Black SN850X M.2 2TB $129
Intel Core i5-13600K $210Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $406
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