Plextor M9PE (512 GB) SSD Review

On this review, we are taking a good look at Plextor’s M9PE NVME SSD. What we’ve got is the 512GB model in an M.2 form factor, featuring 3D NAND flash memory inside. This is a PCI-E SSD, featuring a 5-year Limited Warranty.

Technical Specifications

The Plextor’s M9PE has 3 main models to choose from, with 256GB, 512GB and 1TB models at bay. Our 512GB variant has transfer speeds rated up to 3200MB/s read and 2000MB/s write.

Plextor provided all the necessary information to get us started with the drive. That being said, the M9PE is no slouch when it comes to specifications.

Packaging and Accessories

The PCI-E SSD is packed inside the usual Plextor packaging. It’s slim and looks flimsy. Surprisingly, it protected the drive pretty well against elements.

Inside, you’ll find a screw for the mounting. No other stuff to be found with of course, the exception of the drive.

Design, Build and Connectivity

The Plextror M9PE NVME PCI-E SSD is not much different aesthetic-wise from previous M.2 SSDs we’ve tested. No heatsink here to protect the drive from throttling, nor fancy gaming inspired aesthetics. The Marvell 88SS1093 controller could be seen here, while TOSHIBA’s BiCS3 3D NAND flashes are mostly kept hidden by a large sticker.

What I like about this setup though is the single sided design. This allows for better temperature management with motherboards that features M.2 cooling solutions.

Throughput

Throughput performance measured in MB/s is measured with CrystalDiskMark. First up on the test is the Sequential read and write performance, measured with a block size of 1MB, 1GB transfer size and 32 Queue Depth. This test is more in line with large file transfers; similar to watching a movie.

The second one is the Random 4K read and write performance, measured with a random block size of 4KB, 1GB transfer size and 32 Queue Depth. This test is more in line with small file transfers; similar to transferring installation files and reading game data.

Sequential transfers rate is excellent for both read and write – able to achieve 3195 MB/s for the read and 2014 MB/s for the write. Random 4K performance is also good at 407 MB/s for the write and 471 MB/s for the read respectively.

IOPS

Input/Output Operations per Second is is measured with AS SSD. The Random 4K-64Thrd read and write benchmark is used for this test. Performance is measured with a random block size of 4KB, a 1GB transfer size and 64-thread IO requests. This tests the storage medium’s ability to use Native Command Queuing (NCQ) at higher Queue Depth. A Useful metric for server side applications.

IOPS performance is generally good at 155K IOPS for the write, while read performance hovers around the 340K IOPS mark. Excellent read IOPS performance, while the write IOPS is just decent.

Access Time

The read and write latency is measured with AS SSD using a 512KB block size. Access Time is just as important as the throughput and IOPS performance of the drive; allowing us to peak into how fast or slow a storage medium can access a given data. Latency is measured in milliseconds.

Read latency is recorded at 0.034ms, while the write latency is at 0.035ms. Excellent results for both read and write.

Productivity

Our real world performance test consists of 3 file folders containing 6GB worth of text files, images and videos each. The files are copied within the drive using TeraCopy to evaluate the storage medium’s performance. File copy performance is measured in seconds.

The Plextor M9PE NVME SSD is just fast when it comes to our file copy performance suite. Transcend’s 2.5″ SSD surprisingly got a faster figure on the text files. Plextor’s M9PE demolishes everything though on both the larger file copy tests.

Conclusion

The Plextor M9PE NVME 512GB PCI-E M.2 SSD is a fast SSD with a $232 MSRP. It is intended to function as a high capacity, high performance SSD and it did not missed the mark. Performance wise, we are looking at a proper NVME solution here. It has an excellent real world performance figures, while synthetics are just exceptional. Top notch so to speak, but it aint perfect.

While we like how fast it is on general, the SSD’s Random 4K write performance could use a nudge. It is rated at 280K IOPS but we only got around 150K IOPS on the benchmarks. At maximum load via AS SSD, the M9PE got a temperature of 59ºC. That said, the unit doesn’t look like it’s throttling down during our tests. Hot, but not scorching hot.

The Plextor M9PE NVME 512GB PCI-E M.2 SSD is actually a value oriented NVME SSD if you look carefully at its price and performance. An excellent alternative to the usual champs of the segment’s price.