Drive Speeds


about two months ago, I bought the Sandisk Extreme Pro SSD 240GB. At first it performed very well in benchmarks usually achieving at least 400Mb/s read and write speeds. About a month ago however I ran the benchmarks again the write speeds in AS SSD dropped down to 100Mb/s. I didn’t really worry, however the write speed has always been around 100Mb/s for the past month so I want to find out if anybody has the same issue. Suprisngly the write speeds in CrystalDiskMark are still around 400Mb/s.

I’m running Windows 7 Home Premium in AHCI mode, and have TRIM enabled. I updated the SSD firmware yesterday to X21200RL from X21100RL, but that didn’t fix the problem.

Here are some benchmark results:

Before -

Now -,


Neil Zipser