Average Bench: 189% (99th of 1058)

Based on 1,804 user benchmarks.  Model: PC400 NVMe SK hynix 512GB

Outstanding average bench

The Pc400 NVMe SK hynix 512GB averaged 88.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Pc400 NVMe SK hynix 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 541MB/s
Avg. 4K-64Thread Read Speed 890MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Pc400 NVMe SK hynix 512GB is 129%. This is a particularly wide range which indicates that the Pc400 NVMe SK hynix 512GB performs inconsistently under varying real world conditions.


Avg. 4K Random Write Speed 97.2MB/s
Avg. 4K Random Read Speed 38.1MB/s

Average Bench

(Based on 1,804 samples)
Min Avg Max
668 Read 1,276 1,609
418 Write 1,011 1,341
485 Mixed 774 930
282 SusWrite 848 1,309
219% 977 MB/s
Min Avg Max
23.2 4K Read 38.1 48.1
46.9 4K Write 97.2 141
29.4 4K Mixed 51.5 66.2
175% 62.2 MB/s
Min Avg Max
326 DQ Read 890 1,134
165 DQ Write 531 649
207 DQ Mixed 541 632
448% 654 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
366GB free (System drive)
Firmware: 40001E00 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 1255 1287 1281 930 635 74 MB/s
Read 1,326
Write 1,287
Mixed 885
SusWrite 910
247% 1,102 MB/s
4K Read 38.4
4K Write 88.5
4K Mixed 49.7
169% 58.9 MB/s
DQ Read 949
DQ Write 615
DQ Mixed 618
505% 727 MB/s
69GB free (System drive)
Firmware: 40001E00 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 431 266 257 291 290 281 MB/s
Read 1,150
Write 502
Mixed 586
SusWrite 303
140% 635 MB/s
4K Read 36.9
4K Write 81.5
4K Mixed 48.4
161% 55.6 MB/s
DQ Read 810
DQ Write 344
DQ Mixed 290
291% 482 MB/s
130GB free (System drive)
Firmware: 40001E00 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 415 269 290 277 258 399 MB/s
Read 553
Write 359
Mixed 358
SusWrite 318
89% 397 MB/s
4K Read 28.7
4K Write 52.6
4K Mixed 35.9
117% 39.1 MB/s
DQ Read 818
DQ Write 100
DQ Mixed 198
211% 372 MB/s
1,804 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,172,041 SSDs tested.

Typical NVMe SK hynix 512GB Builds (Compare 6,584 builds) See popular component choices, score breakdowns and rankings.
Gaming 97%
Nuclear submarine
Desktop 93%
Nuclear submarine
Workstation 87%
Aircraft carrier

System: Alienware Aurora R7

EDIT WITH CUSTOM PC BUILDER Value: 68% - Good Total price: $754

Popular NVMe SK hynix 512GB systems:

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.

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How it works

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  • - 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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) June 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.


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

 Best User Rated

The Best.
Intel Core i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-10700K $277Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $94SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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