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SDM12SI512A 512GB

▲ 500 ▼

Release date ≈ Q3 2019.

Average Bench: 198% (100th of 1071)

Based on 206 user benchmarks.  Model: SDM12SI512A
Poor: 127%Average: 198% Great: 273%

Popular builds with this SSD

Outstanding average bench

The SDM12SI512A 512GB averaged 97.8% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the SDM12SI512A 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 448MB/s
Avg. Sequential Read Speed 1,628MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SDM12SI512A 512GB is 146%. This is a particularly wide range which indicates that the SDM12SI512A 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Mixed IO Speed 27.9MB/s
Avg. Sustained Write Speed 734MB/s
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Average Bench

(Based on 206 samples)
Rank 100198%
Min Avg Max
1,133 Read 1,628 1,933
323 Write 1,277 1,601
154 Mixed 920 1,188
227 SusWrite 734 1,572
254% 1,140 MB/s
Min Avg Max
29.3 4K Read 49.7 54.7
45.4 4K Write 147 200
15.8 4K Mixed 27.9 46.9
189% 74.8 MB/s
Min Avg Max
625 DQ Read 793 903
101 DQ Write 729 1,017
142 DQ Mixed 448 594
422% 657 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
438GB free (System drive)
Firmware: T0828A0
SusWrite @10s intervals: 1338 1330 1294 1358 1360 1344 MB/s
222% Outstanding
Read 1,938
Write 1383
Mixed 1,114
SusWrite 1,337
323% 1,443 MB/s
4K Read 44.1
4K Write 63.9
4K Mixed 26.1
134% 44.7 MB/s
DQ Read 863
DQ Write 194
DQ Mixed 356
306% 471 MB/s
93GB free (System drive)
Firmware: T0828A0
SusWrite @10s intervals: 1021 384 408 183 190 189 MB/s
209% Outstanding
Read 1,886
Write 1,516
Mixed 1,120
SusWrite 396
274% 1,230 MB/s
4K Read 52.8
4K Write 195
4K Mixed 33.3
226% 93.6 MB/s
DQ Read 871
DQ Write 1,117
DQ Mixed 555
541% 848 MB/s
97GB free (System drive)
Firmware: T0828A0
SusWrite @10s intervals: 1193 267 141 223 140 223 MB/s
193% Outstanding
Read 1,893
Write 1,547
Mixed 1135
SusWrite 365
275% 1235 MB/s
4K Read 50.3
4K Write 170
4K Mixed 29.7
204% 83.2 MB/s
DQ Read 861
DQ Write 756
DQ Mixed 549
483% 722 MB/s
430GB free (System drive)
Firmware: S0614B0G
SusWrite @10s intervals: 916 915 713 150 154 118 MB/s
180% Outstanding
Read 1,389
Write 926
Mixed 830
SusWrite 494
202% 910 MB/s
4K Read 47.2
4K Write 114
4K Mixed 44.4
189% 68.4 MB/s
DQ Read 900
DQ Write 793
DQ Mixed 590
513% 761 MB/s
163GB free (System drive)
Firmware: S0614B0G
SusWrite @10s intervals: 389 596 529 216 368 225 MB/s
171% Outstanding
Read 1,778
Write 1,506
Mixed 1,174
SusWrite 387
270% 1,211 MB/s
4K Read 49.6
4K Write 65.9
4K Mixed 41.7
164% 52.4 MB/s
DQ Read 901
DQ Write 318
DQ Mixed 586
439% 602 MB/s
119GB free (System drive)
Firmware: T0828A0
SusWrite @10s intervals: 414 312 452 228 206 173 MB/s
143% Outstanding
Read 1,478
Write 1,037
Mixed 841
SusWrite 297
203% 913 MB/s
4K Read 28.4
4K Write 112
4K Mixed 19.4
127% 53.3 MB/s
DQ Read 773
DQ Write 549
DQ Mixed 456
396% 593 MB/s
176GB free (System drive)
Firmware: S0614B0G
SusWrite @10s intervals: 336 212 353 224 427 295 MB/s
113% Outstanding
Read 1,125
Write 349
Mixed 142
SusWrite 308
104% 481 MB/s
4K Read 41.3
4K Write 26
4K Mixed 18
99% 28.4 MB/s
DQ Read 826
DQ Write 78.5
DQ Mixed 208
214% 371 MB/s
206 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,747,400 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 SDM12SI512A 512GB Builds (Compare 2,597 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 80%
Aircraft carrier

Motherboard: Asus TUF GAMING B460-PLUS - $140

CPU
Core i5-10400FIntel  $98Bench 85%, 153,026 samples847x
Core i5-10400Intel  $125Bench 84%, 71,804 samples298x
Core i5-10600KIntel  $144Bench 92%, 70,951 samples238x
GPU
RTX 3060Nvidia  $250Bench 100%, 447,556 samples253x
RTX 2060Nvidia  $324Bench 90%, 645,160 samples210x
RTX 3070Nvidia  $400Bench 148%, 619,642 samples199x
SSD
SDM12SI512A 512GBBench 198%, 206 samples1x
RAM
Fury 2666 C16 2x8GBHyperX  $75Bench 82%, 134,977 samples151x
HyperX DDR4 3200 C16 2x8GBKingstonBench 86%, 239,203 samples136x
Vengeance LPX DDR4 3200 C16 2x8GBCorsair  $45Bench 85%, 653,654 samples76x
EDIT WITH CUSTOM PC BUILDER Value: 98% - Outstanding Total price: $563

Popular SDM12SI512A 512GB 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.

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) 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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1071 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
The Best.
CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial 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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