PrimoCache也有預裝cache的功能了。又查了點資料，知道了這個軟件與WINDOWS自己的CACHE功能有些重疊。

當然，測磁盤速度的軟件測出的結果，隻是代表那點抽樣數據的速度，不能反應磁盤的整體性能。

這是別人總結的幾點有別於WINDOWS CACHE的地方。（一行是賣點，另外一行是反駁的意見）

• Some applications can bypass Windows cache but cannot bypass PrimoCache because PrimoCache runs at a lower level in Windows.

So an application is written to bypass cache for data safety, but let's stick it in RAM anyway because screw data protection.

• Windows caches all data, while PrimoCache can cache on behalf of a specified volume in which users are interested. Given same size of system memory, the latter has a higher hit-rate.

Windows is not going to cache stuff that people don't request or that isn't needed for the OS.

• PrimoCache supports persistent SSD caching for mechanical hard disks, improving system boot-up time and applications loading time. Windows cache cannot.

Storage Spaces.

• PrimoCache can customize write-deferred mode, while Windows cache cannot.

See first point.

• PrimoCache can make use of Invisible Memory on 32-bit Windows as cache, overcoming the Windows limits on amount of system memory.