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A400

NVMe SanDisk 512GB

▲ 500 ▼

Release date ≈ Q2 2017.

Average Bench: 121% (189th of 1072)

Based on 629 user benchmarks.  Model: A400 NVMe SanDisk 512GB
Poor: 72%Average: 121% Great: 150%

Popular builds with this SSD

Outstanding average bench

The A400 NVMe SanDisk 512GB averaged 20.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the A400 NVMe SanDisk 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 398MB/s
Avg. 4K-64Thread Read Speed 594MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the A400 NVMe SanDisk 512GB is 77.6%. This is a particularly wide range which indicates that the A400 NVMe SanDisk 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 321MB/s
Avg. Sequential Mixed IO Speed 391MB/s
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Average Bench

(Based on 629 samples)
Rank 189121%
Min Avg Max
410 Read 815 1,045
379 Write 595 776
267 Mixed 391 599
134 SusWrite 321 389
118% 531 MB/s
Min Avg Max
14.1 4K Read 31.8 43.3
38.2 4K Write 91.3 127
17.8 4K Mixed 40 56.7
148% 54.4 MB/s
Min Avg Max
244 DQ Read 594 663
149 DQ Write 439 528
158 DQ Mixed 398 478
330% 477 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
437GB free (System drive)
Firmware: A3582012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 372 364 358 364 368 372 MB/s
124% Outstanding
Read 964
Write 486
Mixed 412
SusWrite 366
123% 557 MB/s
4K Read 31.9
4K Write 60.5
4K Mixed 38.6
130% 43.7 MB/s
DQ Read 613
DQ Write 434
DQ Mixed 444
353% 497 MB/s
43GB free (System drive)
Firmware: A3550012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 202 180 126 84 70 67 MB/s
122% Outstanding
Read 957
Write 639
Mixed 286
SusWrite 122
110% 501 MB/s
4K Read 39.3
4K Write 112
4K Mixed 37.7
167% 62.9 MB/s
DQ Read 658
DQ Write 515
DQ Mixed 388
344% 520 MB/s
129GB free
Firmware: A3550012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 398 354 342 357 343 343 MB/s
108% Outstanding
Read 780
Write 445
Mixed 364
SusWrite 356
108% 486 MB/s
4K Read 32
4K Write 57.2
4K Mixed 27.4
114% 38.9 MB/s
DQ Read 490
DQ Write 455
DQ Mixed 454
346% 466 MB/s
103GB free
Firmware: A3550012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 394 360 359 348 338 333 MB/s
102% Outstanding
Read 627
Write 379
Mixed 354
SusWrite 355
96% 429 MB/s
4K Read 27.7
4K Write 52.8
4K Mixed 37.3
118% 39.3 MB/s
DQ Read 424
DQ Write 409
DQ Mixed 465
336% 433 MB/s
129GB free
Firmware: A3550012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 377 215 118 49 36 40 MB/s
94.8% Outstanding
Read 651
Write 407
Mixed 464
SusWrite 139
92% 416 MB/s
4K Read 25.7
4K Write 67.3
4K Mixed 34.3
118% 42.4 MB/s
DQ Read 658
DQ Write 404
DQ Mixed 317
294% 460 MB/s
56GB free (System drive)
Firmware: A3582012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 234 243 141 133 140 130 MB/s
82.1% Excellent
Read 337
Write 475
Mixed 220
SusWrite 170
68% 301 MB/s
4K Read 25
4K Write 63.5
4K Mixed 37.8
120% 42.1 MB/s
DQ Read 549
DQ Write 377
DQ Mixed 381
306% 436 MB/s
286GB free (System drive)
Firmware: A3590012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 321 347 300 285 318 341 MB/s
65.3% Good
Read 688
Write 492
Mixed 297
SusWrite 319
100% 449 MB/s
4K Read 15.1
4K Write 15.7
4K Mixed 13.3
48% 14.7 MB/s
DQ Read 86.2
DQ Write 70.2
DQ Mixed 98
68% 84.8 MB/s
221GB free (System drive)
Firmware: A3590012 Max speed: PCIe 16,000 MB/s
SusWrite @10s intervals: 380 379 381 378 379 381 MB/s
60.8% Good
Read 612
Write 462
Mixed 334
SusWrite 380
100% 447 MB/s
4K Read 11.5
4K Write 15.4
4K Mixed 8.6
37% 11.8 MB/s
DQ Read 33.3
DQ Write 63
DQ Mixed 103
63% 66.4 MB/s
629 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,717,102 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 NVMe SanDisk 512GB Builds (Compare 1,632 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 9%
Tree trunk
Desktop
Desktop 55%
Gunboat
Workstation
Workstation 8%
Tree trunk

System: Dell XPS 13 9360

CPU
Core i7-8550UIntelBench 53%, 184,356 samples427x
Core i7-7500UIntelBench 48%, 139,101 samples379x
Core i5-7200UIntelBench 45%, 205,332 samples330x
GPU
HD 620 (Mobile Kaby Lake)IntelBench 5%, 387,149 samples776x
UHD Graphics 620 (Mobile Kaby Lake R)IntelBench 5%, 420,154 samples590x
Iris Plus 640 (Mobile Kaby Lake)IntelBench 7%, 7,552 samples241x
SSD
NVMe SanDisk 512GBA400Bench 121%, 629 samples1x
RAM
MT52L512M32D2PF-10 2x4GBMicronBench 58%, 8,965 samples599x
H9CCNNNBJTMLAR-NUD 2x4GBHynixBench 58%, 6,118 samples299x
MT52L1G32D4PG-093 2x8GBMicronBench 66%, 14,288 samples194x
EDIT WITH CUSTOM PC BUILDER

Popular NVMe SanDisk 512GB 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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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
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  • - 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]

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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.

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Speed Comparisons

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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?
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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?
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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $177Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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