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Average Bench: 156% (155th of 1080)

Based on 10,396 user benchmarks.  Model: WDC PC SN520 SDAPMUW-512G-1101

Outstanding average bench

The WDC PC SN520 SDAPMUW-512G-1101 512GB averaged 55.7% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the WDC PC SN520 SDAPMUW-512G-1101 512GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 696MB/s
Avg. 4K-64Thread Read Speed 849MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the WDC PC SN520 SDAPMUW-512G-1101 512GB is 95.1%. This is a particularly wide range which indicates that the WDC PC SN520 SDAPMUW-512G-1101 512GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 544MB/s
Avg. 4K Random Write Speed 104MB/s

Average Bench

(Based on 10,396 samples)
Min Avg Max
544 Read 858 1,218
470 Write 840 1,221
436 Mixed 731 1,054
259 SusWrite 544 767
167% 743 MB/s
Min Avg Max
18.6 4K Read 40.9 46.9
46.3 4K Write 104 154
24.3 4K Mixed 51.6 69.2
183% 65.6 MB/s
Min Avg Max
375 DQ Read 849 1,085
154 DQ Write 593 908
208 DQ Mixed 696 1,019
526% 713 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
30GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 26 24 25 25 27 29 MB/s
Read 5,040
Write 40.7
Mixed 79.5
SusWrite 25.9
269% 1,296 MB/s
4K Read 682
4K Write 2.9
4K Mixed 5.4
1,042% 230 MB/s
410GB free (System drive)
Firmware: 20200001
SusWrite @10s intervals: 888 747 746 747 624 440 MB/s
Read 1,169
Write 1,150
Mixed 1,014
SusWrite 699
227% 1,008 MB/s
4K Read 38.7
4K Write 203
4K Mixed 57.2
239% 99.6 MB/s
DQ Read 1,082
DQ Write 1292
DQ Mixed 1084
846% 1,152 MB/s
354GB free
Firmware: 20200001
SusWrite @10s intervals: 981 747 746 746 744 745 MB/s
Read 1,204
Write 1,240
Mixed 1,041
SusWrite 785
240% 1,067 MB/s
4K Read 39
4K Write 101
4K Mixed 55.7
184% 65.2 MB/s
DQ Read 930
DQ Write 644
DQ Mixed 762
576% 779 MB/s
161GB free (System drive)
Firmware: 20290001
SusWrite @10s intervals: 636 253 289 260 185 261 MB/s
Read 685
Write 847
Mixed 673
SusWrite 314
142% 630 MB/s
4K Read 36.3
4K Write 91.3
4K Mixed 51.1
169% 59.6 MB/s
DQ Read 851
DQ Write 676
DQ Mixed 760
570% 762 MB/s
185GB free (System drive)
Firmware: 20210001
SusWrite @10s intervals: 640 430 369 388 369 389 MB/s
Read 658
Write 775
Mixed 662
SusWrite 431
142% 632 MB/s
4K Read 25
4K Write 48.4
4K Mixed 34.1
107% 35.8 MB/s
DQ Read 633
DQ Write 367
DQ Mixed 514
379% 505 MB/s
15GB free (System drive)
Firmware: 20240001
SusWrite @10s intervals: 187 137 105 116 86 88 MB/s
Read 734
Write 240
Mixed 365
SusWrite 120
80% 365 MB/s
4K Read 23.9
4K Write 66.2
4K Mixed 31.5
112% 40.5 MB/s
DQ Read 626
DQ Write 278
DQ Mixed 325
275% 410 MB/s
10,396 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 76,975,781 SSDs tested

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