Originally Posted by pierre15208
Wirelessly posted (BlackBerry 8100 Pearl: BlackBerry8100/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)
According to Wikipedia, the 8100 has 16MB of SDRAM.
I'm pretty sure that all of the 81xx devices have 32MB SDRAM in conjunction with 64MB of Flash ROM. The 64MB is used to store the OS and other persistent data (emails, contacts, apps, etc) while the 32MB is for memory overhead while running the actual device.
I've done a quick search through blackberry.com but it looks like they stopped posting the SDRAM sizes after the 87xx series.