cache memory question.

[dalvik]

Hi guys. I was wondering if anyone could tell me how long do the applications (games specifically) remain in cache before they are purged? on my GS2 Skyrocket any game like NOVA or Mass Effect remains in cache for no longer than 15 minutes and if I want to come back to it, the game would start loading again. Whereas on my IPad games remain in cache for more than 24 hours (if i paused the game I can just tap on it and continue) Since GS3 has 2 GB ram I was hoping that this issue would be fixed. thank you.