PC Components

Plextor M9PeG SSD 512 GB (PX-512M9PeG) Review

Plextor has launched a new SSD series with the M9Pe series in early 2018. The new SSDs compete with Samsung‘s unprecedented competition. It is the fastest SSD from Trextor to date and is available both as an add-in card version and as an M.2 plug-in card. In our test we will deal with the Plextor M9PeG with 512 GB. This is the M.2 plug-in card with pre-installed heat sink.

BiCS 3 from Toshiba is used as flash memory. The TLC Flash is 64-layer and, although it is TLC Flash, offers a high speed. A Marvel 88SS1093 controller is responsible for the control, as with all previous Plextor NVMe SSDs. This one is a bit older and tends to overheat. However, we could not detect any disturbing temperature development in the M9PeG test. Interesting is however the LPDC (Low Density Parity Check) error correction used by Plextor, by which the TLC-Flashg reaches an MLC-like life expectancy. The PX-512M9PeG we tested thus achieves a TBW (Total Bytes Written) of 320 TB. The SLC buffer technology PlexNitro not only accelerates but also increases endurance.

Technical Data

Plextor M9PeG 512 GB (PX-512M9PeG)
Capacity 512 GB
Cache 512 MB LPDDR3
Controller Marvel 88SS1093
NAND Flash Toshiba BiCS 3 TLC (3D, 64 layers)
Sequential reading speed Up to 3,200 MB/s
Sequential write speed Up to 2,000 MB/s
Random Read Up to 340,000 IOPS
Random Write Up to 280,000 IOPS
Interface PCIe 3.0 x4, NVMe 1.1
Form factor M.2
Reliability MTBF: 1.5 million hours
TBW 320 TB
Functions TRIM (operating system support required), S.M.A.R.T, IO queue
Operating temperature 0 °C to +70 °C
Price $221, not yet known in Germany
Guarantee 5 years

Test System

Our system relies on high-end components that already contain a current M.2 slot. The test system recognizes the Plextor M9PeG without problems in the UEFI.

  • MSI Z370 Gaming Pro Carbon Mainboard
  • Intel Core i7-8700K Processor
  • 32 GB Crucial DDR4-2666 RAM
  • ASUS GeForce GTX 1080 Ti Strix graphics card

PX-512M9PeG Benchmarks

wdt_ID SSD Seq (lesen in MB/s) Seq (schreiben in MB/s) 4K (lesen in MB/s) 4K (schreiben in MB/s) 4K-64-Thrd (lesen in MB/s) 4K-64-Thrd (schreiben in MB/s)
1 Samsung SSD 960 PRO 2 TB 2.278,89 1.832,34 47,47 197,25 1.690,47 1.211,18
2 Samsung SSD 960 EVO 1 TB 2.833,98 1.977,16 38,95 207,29 1.301,00 992,33
3 Plextor M8SeGN 256 GB 2.170,45 637,79 35,37 5,44 282,25 8,73
4 Plextor M9PeG 512 GB 2.246,29 880,66 41,74 7,49 511,00 31,01
5 Samsung SSD 970 EVO 2TB 2.553,25 2.481,28 42,45 110,08 1.687,72 1.901,41
6 Crucial P1 500 GB 1.774,87 927,44 59,92 172,76 346,82 878,87
7 Samsung SSD 970 Evo Plus 250 GB 2.794,51 2.204,05 54,37 132,99 795,31 1.930,24
8 WD Black SN750 1TB 2.966,45 2.690,48 45,74 149,72 1.580,57 1.740,14
9 WD Blue SN550 500 GB 2.178,75 858,33 36,35 155,07 747,57 385,85
10 Corsair MP510 480 GB 2.409,10 1.264,05 48,06 148,67 684,76 1.258,88
SSD Seq (lesen in MB/s) Seq (schreiben in MB/s) 4K (lesen in MB/s) 4K (schreiben in MB/s) 4K-64-Thrd (lesen in MB/s) 4K-64-Thrd (schreiben in MB/s)
wdt_ID SSD Lesen Schreiben Gesamt
1 Samsung SSD 960 PRO 2 TB 1.966 1.592 4.542
2 Samsung SSD 960 EVO 1 TB 1.623 1.397 3.809
3 Plextor M8SeGN 256 GB 578 82 891
4 Plextor M9PeG 512 GB 777 127 1.244
5 Samsung SSD 970 EVO 2TB 1.985 2.228 5.219
6 Crucial P1 500 GB 584 1.144 2.008
7 Samsung SSD 970 Evo Plus 250 GB 1.129 2.284 3.975
8 WD Black SN750 1TB 1.923 2.159 5.052
9 WD Blue SN550 500 GB 1.002 627 2.082
10 Corsair MP510 480 GB 974 1.534 2.961
SSD Lesen Schreiben Gesamt
wdt_ID SSD ISO (in MB/s) Programm (in MB/s) Spiel (in MB/s)
1 Samsung SSD 960 PRO 2 TB 1.827,04 647,49 483,93
2 Samsung SSD 960 EVO 1 TB 1.917,71 283,09 471,35
3 Plextor M8SeGN 256 GB 1.471,74 547,76 1.166,32
4 Plextor M9PeG 512 GB 1.566,28 632,28 1.130,44
5 Samsung SSD 970 EVO 2TB 1.378,01 354,96 749,40
6 Crucial P1 500 GB 977,33 363,49 558,79
7 Samsung SSD 970 Evo Plus 250 GB 1.405,19 414,16 921,26
8 WD Black SN750 1TB 1.682,28 426,18 943,93
10 WD Blue SN550 500 GB 1.108,05 349,78 419,12
11 Corsair MP510 480 GB 1.040,48 190,51 762,33
SSD ISO (in MB/s) Programm (in MB/s) Spiel (in MB/s)
wdt_ID SSD Seq Q32T1 (lesen in MB/s) Seq Q32T1 (schreiben in MB/s) 4K Q32T1 (lesen in MB/s) 4K Q32T1 (schreiben in MB/s) Seq (lesen in MB/s) Seq (schreiben in MB/s) 4K (lesen in MB/s) 4K (schreiben in MB/s)
1 Samsung SSD 960 PRO 2 TB 3.470,00 1.922,00 779,40 681,70 2.729,00 1.856,00 53,17 250,90
2 Samsung SSD 960 EVO 1 TB 3.402,00 1.934,00 829,10 741,00 2.087,00 1.890,00 52,95 260,80
3 Plextor M8SeGN 256 GB 2.249,00 369,00 560,20 366,70 1.573,00 437,70 39,15 143,90
4 Plextor M9PeG 512 GB 2.788,00 1.316,00 599,90 633,70 1.810,00 1.344,00 45,53 192,70
5 Samsung SSD 970 EVO 2TB 3.560,00 2.508,00 337,00 231,70 2.447,00 2.489,00 50,01 153,70
6 Crucial P1 500 GB 1.928,00 978,30 355,30 347,20 1.688,00 973,20 57,60 146,70
7 Samsung SSD 970 Evo Plus 250 GB 3.556,20 2.372,80 579,10 1.329,40 355,30 302,30 46,36 173,90
8 WD Black SN750 1TB 3.411,80 2.990,90 1.297,90 1.395,20 331,20 315,00 42,26 195,00
9 WD Blue SN550 500 GB 2.430,00 1.519,00 361,20 267,10 1.675,00 1.235,00 38,02 139,30
10 Corsair MP510 480 GB 3.392,00 1.354,00 274,40 307,70 1.003,00 1.338,00 39,68 139,30
SSD Seq Q32T1 (lesen in MB/s) Seq Q32T1 (schreiben in MB/s) 4K Q32T1 (lesen in MB/s) 4K Q32T1 (schreiben in MB/s) Seq (lesen in MB/s) Seq (schreiben in MB/s) 4K (lesen in MB/s) 4K (schreiben in MB/s)
wdt_ID SSD 512 B 1 KB 2 KB 4 KB 8 KB 16 KB 32 KB 64 KB 128 KB 256 KB 512 KB 1 MB 2 MB 4 MB 8 MB 12 MB 16 MB 24 MB 32 MB 48 MB 64 MB
1 Samsung SSD 960 PRO 2 TB 25.856 52.604 94.720 188.967 390.192 665.983 1.029.617 1.376.256 1.646.470 1.951.444 2.122.118 2.154.608 2.162.012 2.091.922 2.051.004 2.111.226 2.086.718 2.114.775 1.811.794 1.621.533 1.281.123
2 Samsung SSD 960 EVO 1 TB 25.216 54.528 104.448 72.282 46.864 60.532 86.421 586.889 1.760.668 1.913.459 1.670.525 1.623.900 2.071.261 1.950.839 2.002.054 2.003.648 2.121.013 2.104.165 2.112.999 2.102.539 2.057.469
3 Plextor M8SeGN 256 GB 11.307 22.016 41.568 73.252 131.984 178.826 222.564 401.080 676.785 921.819 1.250.067 1.567.506 1.780.775 1.912.685 1.973.790 1.982.197 1.993.332 1.987.103 1.998.278 2.003.372 1.993.332
4 Plextor M9PeG 512 GB 9.472 18.386 35.661 58.368 103.928 147.456 218.453 480.704 386.453 652.099 1.167.968 1.785.895 2.021.351 2.283.650 1.997.287 1.909.394 1.864.135 1.851.789 1.833.575 1.786.721 1.903.586
5 Samsung SSD 970 EVO 2TB 18.048 35.750 69.831 134.234 250.478 441.406 726.616 1.050.532 1.327.331 1.577.490 1.677.721 1.669.374 1.754.904 1.740.479 1.685.826 1.560.527 1.571.329 1.478.186 1.405.771 1.258.291 1.559.915
6 Crucial P1 500 GB 17.364 33.963 65.536 178.753 308.476 550.208 858.014 1.228.369 1.345.114 1.309.691 1.407.153 1.514.720 1.566.695 1.642.025 1.651.910 1.655.136 1.655.093 1.648.795 1.645.581 1.500.354 1.491.308
7 Samsung SSD 970 Evo Plus 250 GB 38.570 79.100 162.680 316.410 628.910 1.190.000 2.430.000 2.670.000 3.050.000 3.100.000 3.100.000 2.890.000 3.250.000 3.240.000 3.260.000 3.250.000 3.200.000 2.630.000 2.530.000 2.840.000 2.330.000
8 WD Black SN750 1TB 11.700 23.380 48.710 211.390 419.920 863.280 1.470.000 1.880.000 1.320.000 2.140.000 2.690.000 3.150.000 3.000.000 3.090.000 3.240.000 3.150.000 3.260.000 3.260.000 3.250.000 3.250.000 3.260.000
10 WD Blue SN550 500 GB 10.597 19.359 38.526 124.306 233.766 417.792 709.158 1.081.344 1.467.223 1.760.668 1.581.379 1.548.529 1.613.193 1.698.098 1.715.461 1.668.821 1.706.736 1.688.981 1.714.585 1.725.728 1.719.706
11 Corsair MP510 480 GB 19.918 38.144 75.435 140.621 253.308 380.600 687.472 965.054 1.267.159 1.317.547 1.118.481 1.374.913 1.665.232 1.889.472 2.044.594 2.087.967 1.903.332 2.093.059 2.115.747 2.092.999 2.142.128
SSD 512 B 1 KB 2 KB 4 KB 8 KB 16 KB 32 KB 64 KB 128 KB 256 KB 512 KB 1 MB 2 MB 4 MB 8 MB 12 MB 16 MB 24 MB 32 MB 48 MB 64 MB
wdt_ID SSD 512 B 1 KB 2 KB 4 KB 8 KB 16 KB 32 KB 64 KB 128 KB 256 KB 512 KB 1 MB 2 MB 4 MB 8 MB 12 MB 16 MB 24 MB 32 MB 48 MB 64 MB
1 Samsung SSD 960 PRO 2 TB 76.544 154.112 298.496 564.224 974.848 610.304 959.460 1.362.629 1.736.704 1.772.954 1.723.012 1.743.475 1.880.853 1.864.135 1.839.607 1.774.740 1.775.366 1.742.785 1.709.344 1.536.037 1.606.345
2 Samsung SSD 960 EVO 1 TB 27.008 56.434 111.337 212.460 393.216 680.628 1.056.768 1.454.539 1.496.107 1.682.899 1.807.889 1.847.711 1.893.590 1.910.844 1.906.501 1.886.493 1.853.836 1.797.558 1.711.960 1.620.005 1.605.595
3 Plextor M8SeGN 256 GB 16.853 33.280 65.024 120.776 211.566 346.101 500.029 671.088 754.000 855.864 979.691 989.319 989.319 989.319 986.895 986.309 984.482 983.971 984.482 981.467 979.691
4 Plextor M9PeG 512 GB 21.888 43.520 84.992 164.864 293.444 507.904 813.101 1.170.866 1.414.446 849.843 1.245.339 1.494.407 1.350.097 798.915 947.865 735.842 574.365 635.982 607.649 605.113 596.419
5 Samsung SSD 970 EVO 2TB 15.447 31.586 61.797 120.776 227.950 421.028 732.959 1.173.618 1.631.147 2.011.693 1.954.627 2.348.810 2.487.938 1.494.021 2.494.021 2.492.090 2.494.021 2.491.416 2.483.027 2.454.597 2.397.934
6 Crucial P1 500 GB 23.936 47.360 92.672 178.176 312.562 551.581 874.358 980.588 983.040 980.588 984.578 975.419 982.272 975.419 980.586 978.035 978.352 971.412 967.334 964.036 965.161
7 Samsung SSD 970 Evo Plus 250 GB 37.480 75.680 150.880 303.710 552.730 810.330 1.021.000 1.080.000 744.420 795.450 604.840 877.190 978.000 767.750 572.660 486.220 562.190 621.600 570.000 561.370 460.160
8 WD Black SN750 1TB 11.390 28.670 65.100 283.200 572.270 1.090.000 1.800.000 2.220.000 2.470.000 2.450.000 2.470.000 2.690.000 2.410.000 2.240.000 2.260.000 2.340.000 2.420.000 2.020.000 1.860.000 1.840.000 1.650.000
10 WD Blue SN550 500 GB 15.665 24.003 52.473 157.302 268.991 484.999 720.896 918.137 1.138.418 1.372.823 1.436.405 1.287.724 1.166.704 1.252.031 1.253.902 785.940 662.607 571.560 535.073 531.814 531.555
11 Corsair MP510 480 GB 18.513 35.072 66.048 148.183 265.534 375.565 716.657 1.167.779 1.572.341 1.717.495 2.049.630 2.147.483 2.171.169 2.176.503 2.203.574 2.209.069 2.080.374 1.363.665 1.355.082 1.366.144 1.364.926
SSD 512 B 1 KB 2 KB 4 KB 8 KB 16 KB 32 KB 64 KB 128 KB 256 KB 512 KB 1 MB 2 MB 4 MB 8 MB 12 MB 16 MB 24 MB 32 MB 48 MB 64 MB
wdt_ID SSD Minimum (in MB/s) Maximum (in MB/s) Average (in MB/s)
1 Samsung SSD 960 PRO 2 TB 1.331,3 1.861,7 1.771,5
2 Samsung SSD 960 EVO 1 TB 1.365,9 1.914,5 1.736,2
3 Plextor M8SeGN 256 GB 1.125,6 1.280,7 1.245,0
4 Plextor M9PeG 512 GB 209,4 1.285,0 1.254,3
6 Samsung SSD 970 EVO 2TB 1.460,6 1.982,2 1.797,2
8 Crucial P1 500 GB 1.507,6 1.600,1 1.575,0
9 Samsung SSD 970 Evo Plus 250 GB 1.225,6 1.600,2 1.556,7
10 WD Black SN750 1TB 315,0 1.489,1 1.426,4
12 WD Blue SN550 500 GB 1.372,3 1.512,9 1.480,7
13 Corsair MP510 480 GB 863,9 1.561,9 1.492,6
SSD Minimum (in MB/s) Maximum (in MB/s) Average (in MB/s)
wdt_ID SSD AS SSD (lesen) AS SSD (schreiben) HD Tune Pro
1 Samsung SSD 960 PRO 2 TB 0,220 0,373 0,018
2 Samsung SSD 960 EVO 1 TB 0,000 0,402 0,023
3 Plextor M8SeGN 256 GB 0,024 0,832 0,021
4 Plextor M9PeG 512 GB 0,020 0,592 0,018
5 Samsung SSD 970 EVO 2TB 0,032 0,349 0,018
6 Crucial P1 500 GB 0,020 0,448 0,017
7 Samsung SSD 970 Evo Plus 250 GB 0,049 0,027 0,049
8 WD Black SN750 1TB 0,030 0,024 0,034
9 WD Blue SN550 500 GB 0,028 0,585 0,021
10 Corsair MP510 480 GB 0,051 0,250 0,034
SSD AS SSD (lesen) AS SSD (schreiben) HD Tune Pro

Conclusion on the Plextor M9PeG

With the Plextor M9PeG, Plextor has introduced a true gem of an M.2 SSD. It delivers high performance and thus attacks Samsung’s supremacy as the fastest flash-based SSD. Sometimes Plextor can even overtake here. As you can see from the performance tests, however, not everywhere. The SLC cache of the M9PeG is relatively small and limits the performance when a lot of data is written. For gamers and other home users, however, this is unlikely to be a problem. Also, Plextor doesn’t (yet) offer a proprietary NVMe driver that would probably increase performance even further – just like Intel or Samsung do.

However, we can hope that the already very good Plextor M9PeG will get even more out of its hardware in the future. With its previous models Plextor has always trumped with its update policy. There have often been updates that have improved performance. Probably we will also experience this with the M9PeG, because especially the latency time can be improved for some applications.

Overall, Plextor offers a powerful and affordable SSD with the M9Pe series. Prices in Germany are not yet known, but in the US the M9PeG with 512 GB is said to be at $221. The price in Germany will probably be similar and therefore very competitive. So it’s worth taking a look at the Plextor M9PeG and I can only recommend the M.2-SSD.

Plextor M9PeG (512 GB)

Access Time
Transfer Rate (read)
Transfer Rate (write)
Value for Money

Powerful M.2 SSD!

Overall, Plextor offers a powerful and affordable SSD with the M9Pe series. So it's worth taking a look at the Plextor M9PeG and I can only recommend the M.2-SSD.

Simon Lüthje

I am co-founder of this blog and am very interested in everything that has to do with technology, but I also like to play games. I was born in Hamburg, but now I live in Bad Segeberg.

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