Intel SSD 335 (240GB) Reviewby Kristian Vättö on October 29, 2012 11:30 AM EST
Performance Over Time & TRIM
SandForce has always exhibited strange behavior when it came to TRIM. Even Intel's custom firmware in the SSD 520 wasn't able to fix SandForce's TRIM problem. The issue happens when the SSD is completely filled with incompressible data (both user LBAs and spare area). Any performance degradation after that point won't be restored with a TRIM pass and instead will require a secure erase to return to new. I didn't expect the 335 to fix this but I still tortured the SSD 335 for 60 minutes, ran AS-SSD, TRIMed and reran AS-SSD:
|Intel SSD 335 - Resiliency - AS SSD Sequential Write Speed - 6Gbps|
|Clean||After Torture (60min)||After TRIM|
|Intel SSD 335 240GB||317.7MB/s||174.2MB/s||176.9MB/s|
And the issues persists. This is really a big problem with SandForce drives if you're going to store lots of incompressible data (such as MP3s, H.264 videos and other highly compressed formats) because sequential speeds may suffer even more in the long run. As an OS drive the SSD 335 will do just fine since it won't be full of incompressible data, but I would recommend buying something non-SandForce if the main use will be storage of incompressible data.