Average Bench: 188% (98th of 1058)

Based on 22,136 user benchmarks.  Model: SPCC M.2 PCIe SSD

Outstanding average bench

The Spcc M.2 PCIe SSD 512GB averaged 88.1% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Spcc M.2 PCIe SSD 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 687MB/s
Avg. 4K-64Thread Write Speed 753MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Spcc M.2 PCIe SSD 512GB is 138%. This is a particularly wide range which indicates that the Spcc M.2 PCIe SSD 512GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 602MB/s
Avg. 4K Random Read Speed 43.1MB/s

Average Bench

(Based on 22,136 samples)
Min Avg Max
616 Read 1,339 2,368
449 Write 1,367 2,276
179 Mixed 974 1,554
254 SusWrite 602 1,166
240% 1,071 MB/s
Min Avg Max
18.7 4K Read 43.1 56.3
48.3 4K Write 137 208
16.3 4K Mixed 51.9 82.1
204% 77.3 MB/s
Min Avg Max
379 DQ Read 853 1,346
90.3 DQ Write 753 1,270
124 DQ Mixed 687 1,261
547% 764 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
416GB free (System drive)
Firmware: ECFM12.2 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 630 565 601 604 605 607 MB/s
Read 1,003
Write 830
Mixed 497
SusWrite 602
164% 733 MB/s
4K Read 29.5
4K Write 151
4K Mixed 65.1
208% 81.9 MB/s
DQ Read 1,318
DQ Write 1,119
DQ Mixed 1,220
914% 1,219 MB/s
390GB free (System drive)
Firmware: ECFM22.6 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 480 512 513 473 497 471 MB/s
Read 1,441
Write 2,032
Mixed 1,290
SusWrite 491
296% 1,313 MB/s
4K Read 52.1
4K Write 182
4K Mixed 47.6
236% 94 MB/s
DQ Read 757
DQ Write 521
DQ Mixed 563
441% 614 MB/s
193GB free (System drive)
Firmware: V2.1.1 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 366 365 365 182 35 454 MB/s
Read 1,916
Write 1,405
Mixed 971
SusWrite 295
254% 1,147 MB/s
4K Read 56.4
4K Write 176
4K Mixed 43.4
234% 91.8 MB/s
DQ Read 232
DQ Write 708
DQ Mixed 64.6
166% 335 MB/s
326GB free (System drive)
Firmware: T0707A0L Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 327 293 171 497 307 574 MB/s
Read 749
Write 669
Mixed 585
SusWrite 361
132% 591 MB/s
4K Read 48.3
4K Write 146
4K Mixed 25.1
182% 73 MB/s
DQ Read 725
DQ Write 453
DQ Mixed 361
330% 513 MB/s
22,136 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,259,291 SSDs tested.

Typical M.2 PCIe SSD 512GB Builds (Compare 63,753 builds) See popular component choices, score breakdowns and rankings.
Gaming 48%
Desktop 83%
Aircraft carrier
Workstation 45%
Speed boat

Motherboard: Gigabyte B450M DS3H - $62

EDIT WITH CUSTOM PC BUILDER Value: 74% - Very good Total price: $531

Popular M.2 PCIe SSD 512GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware 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 upgrades.

UserBenchmark of the month

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) July 2021 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.


Added n/a ago.

Excellent (edit your comment) Add link

10 months ago.

I love this thing the write speeds are among the top 3 of any gen 3 NvME and its half the price of the other two nearly you can often pick them up for about 79USD. It's been extremely reliable as my OS drive for nearly 10 months now but the write speed is kinda wasted on OS. Probably going to switch it with my 250gb rocket someday soon and the silicon power A80 for CAD files.

1058 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

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