Plextor PX-128M1S 128GB SSD Benchmarks

[Ian]

Plextor's new 128GB SSD showed up late last week. The full review of the PX-128M1S is still a ways off, but I figured I'd post some benchmark results. These were taken on an HP dc7900 running the 64 bit version of Windows 7 Enterprise.

According to Plextor, the PX-128M1S has maximum read and write speeds of 130MB/s and 80MB/s respectively. Looking at the screenshots below, you can see that its actual performance is very close.

Plextor PX-128M1S HD Tach 1.png (49.94 KiB) Viewed 3111 times

Plextor PX-128M1S ATTO 1.png (25.65 KiB) Viewed 3109 times

Plextor PX-128M1S CDM 100 1.png (54.59 KiB) Viewed 3110 times

Looking at these results, its pretty clear that the PX-128M1S is far from speedy. I still have yet to hear from Plextor whether or not it supports TRIM, but I've been running benchmarks for a few hours with no performance degredation. No idea what controller it has either but if its like the Lite-On LA-32M1S its a Marvell 88SS8014-BHP2.

[Ian]

I didn't feel like wrestling with iometer today, but there are some quick random read/write benchmarks with HD Tune.

Plextor PX-128M1S HD Tune Random Read 1.png (77.79 KiB) Viewed 3111 times

Plextor PX-128M1S HD Tune Random Write 1.png (73.36 KiB) Viewed 3110 times

[Ian]

According to Plextor, these drives do NOT support TRIM. However, they have some sort of "garbage collection" technique to help restore performance.

[Ian]

I found out today that Plextor has dropped the MSRP of both drives.

64GB Retail $187 (was $225)
128GB Retail $335.00 (was $400)

[Ian]

I've spent the last few days trying to improve the random write performance with Iometer. I don't know what the issue is, but the performance is horrible. Random reads are fine though. I'm going to manually align the partition and see if that fixes it.

[Ian]

Anyone have any tips to get an SSD back to factory levels of performance? I've tried "clean all" with Diskpart but the write speeds are still stuck at 50MB/s.

[Ian]

Lite-On is working on some slick utilities for their SSD's. This one can show the number of erase cycles per block.

Plextor PX-128M1S LtnSSD.png (68.8 KiB) Viewed 2992 times

[Ian]

If you haven't seen it already, the full review is online:

http://www.cdrlabs.com/Reviews/plextor- ... drive.html