Plextor PX-128M1S 128GB SSD - SSD Testing Info and Benchmarks

Article Index
Plextor PX-128M1S 128GB SSD
Features and Specifications
Inside the Plextor SSD
SSD Testing Info and Benchmarks
Crystal DiskMark and HDTach
HDTune, IOMeter and Final Thoughts

SSD Testing Disclaimer:

Because of the wear-leveling algorithms used in SSDs, performance is actually pretty hard to nail down.  It is for this reason also that drive performance can vary so much from one review to the next.  Some sites go to extreme measures to show the maximum performance possible after they use utilities to restore the drive to pristine performance levels, but that isn't accurate in the real world.  We've tried to get a balance of the pristine and the dirty drive here at BCCHardware and have used this drive extensively in our test system with both Windows Vista 32-bit and Windows 7 RTM 32-bit.  We feel that our results are as reproducible as possible, and while no software can accurately measure SSD performance in a perfectly fair fashion, we've done our best to keep the results accurate as possible.  We've used synthetic benchmark tools such as HDTach, Everest, CrystalDisk Mark and others that are indicators of real-world performance.

Test System:

Intel Core i7
ASRock X58 Supercomputer
2x Radeon HD 4870 512MB
Hard Drives

Crucial M225128GB SSD - firmware 1571 (no TRIM)
Patriot Torqx 128GB SSD - firmware 1819

Plextor 128GB SSD - Original Firmware

Operating System
Windows 7 Ultimate x64
ATI Drivers
10.1 Catalyst

Performance - ATTO:

ATTO is not an indicator of real-world performance, but it shows how fast the drive can read and write data using different sized files.  We've included results from the 128GB Patriot Torqx as well as the Crucial M225 SSD - which happens to use the same controller, same NAND and same Elpida RAM.  The Plextor drive uses similar NAND, but a different controller and different buffer memory.

ATTO - Read Chart


 ATTO - Write Chart

The Patriot and Crucial drives are based off the same technology but the Plextor drive has a completely different setup.  The controller is different as is the buffer memory.  While the NAND flash remains fairly similar, the way it is accessed is completely different and you can see especially in the write tests that it lags significantly behind the other two drives.  Even in the read tests, the Plextor drive is much slower when all drives are in their "clean" state.  Plextor claims that no matter how "dirty" the NAND gets, it will retain the same speed.  If it slows down much more, a traditional Hard Drive will be able to best the performance.

All that being said, the drive exceeds what Plextor says it can do in terms of read speed.  The specs state that the drive has a maximum speed of 130MB/sec read and 70MB/sec write.  According to ATTO, the write speed falls short while the read speed is better than rated.