Average Bench: 90.3% (257th of 1003)

Based on 1,113 user benchmarks.  Models: PLEXTOR PX-256M5Pro, PLEXTOR PX-256M5P

The Plextor M5 delivers fantastic value for money and sits within easy reach of the top handful of SSD's currently available. The M5's performance favours server type workloads where it takes joint fourth position in the AS-SSD total score benchmark. With a Real World Speed Index of 524.5 it will also cope very well with consumer workloads. Aside from its blistering performance we also like the fact that this drive uses the latest Marvell controller which hasn't suffered any of the reliability issues that plagued some of the early Sandforce based drives. When this drive first hit the shelves in September '12 it was overpriced but since then prices have dropped by nearly 40% making it currently one of top five value for money drives available. [Jun '13 SSDrivePro]


Excellent average bench

The Plextor M5 Pro 256GB averaged just 9.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Plextor M5 Pro 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 177MB/s
Avg. 4K Random Read Speed 28.8MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Plextor M5 Pro 256GB is 44.3%. This is a relatively wide range which indicates that the Plextor M5 Pro 256GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 282MB/s
Avg. Sustained Write Speed 359MB/s

Average Bench

(Based on 1,113 samples)
Min Avg Max
339 Read 450 496
254 Write 377 425
215 Mixed 282 310
178 SusWrite 359 419
82.3% 367 MB/s
Min Avg Max
21.1 4K Read 28.8 34.9
37.5 4K Write 67 92.3
22.4 4K Mixed 33.1 42.5
121% 42.9 MB/s
Min Avg Max
32.1 DQ Read 313 383
87 DQ Write 277 335
36.9 DQ Mixed 177 222
165% 256 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
91GB free
Firmware: 1.03
SusWrite @10s intervals: 434 415 423 428 438 437 MB/s
Read 496
Write 425
Mixed 307
SusWrite 429
93% 414 MB/s
4K Read 36.4
4K Write 104
4K Mixed 46
169% 62.2 MB/s
DQ Read 358
DQ Write 316
DQ Mixed 199
187% 291 MB/s
192GB free
Firmware: 1.05
SusWrite @10s intervals: 401 406 425 417 425 416 MB/s
Read 500
Write 428
Mixed 309
SusWrite 415
93% 413 MB/s
4K Read 33.7
4K Write 86.7
4K Mixed 41.7
150% 54 MB/s
DQ Read 379
DQ Write 314
DQ Mixed 201
190% 298 MB/s
205GB free (System drive)
Firmware: 1.05
SusWrite @10s intervals: 376 365 374 373 419 418 MB/s
Read 485
Write 410
Mixed 298
SusWrite 388
89% 395 MB/s
4K Read 33.8
4K Write 77.9
4K Mixed 38.4
142% 50 MB/s
DQ Read 323
DQ Write 267
DQ Mixed 172
163% 254 MB/s
66GB free (System drive)
Firmware: 1.02
SusWrite @10s intervals: 252 155 130 159 147 154 MB/s
Read 465
Write 169
Mixed 296
SusWrite 166
61% 274 MB/s
4K Read 34.6
4K Write 86.4
4K Mixed 42.6
153% 54.5 MB/s
DQ Read 371
DQ Write 142
DQ Mixed 183
155% 232 MB/s
1,113 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,001,259 SSDs tested.


Approx. $211 @ launch in Sep '12
AmazonUS $1003 years
Send price feedback
Typical M5 Pro 256GB Builds (Compare 6,301 builds) See popular component choices, score breakdowns and rankings.
Gaming 61%
Desktop 71%
Workstation 53%

Motherboard: Asus MAXIMUS VI HERO - $190

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $957

Popular M5 Pro 256GB 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.

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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.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
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  • - Explore your best upgrade options with a virtual PC build.
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  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) June 2019 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.


Controller: Marvell 88SS9187-BLD2. NAND Memory: Toshiba 19nm Toggle Mode MLC

Super High Speed Profesionial SSD...

Added 6 years ago.


3 years ago.


Faster than my Sandisk 240Gb in games (up to 2 seconds gaps in stages loading). Excellent product, no loss of speed after nearly 3 years of intensive use and many fomating. Plextor definetly took my heart with this one.—Sep '14


4 years ago.


2 years ago.

Plextor is a very skilled SSD maker!


6 years ago.

Review  hexus.net/...

Image  img.hexus.net/...
Dec '12 AS SSD Benchmark Speed Test

Dec '12 AS SSD Benchmark Speed Test

Review  thessdreview.com/...

Review  www.theregister.co.uk/...

Image  regmedia.co.uk/...
Oct '12 AS SSD Benchmark Test Score

Oct '12 AS SSD Benchmark Test Score

1003 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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