FTB Lite 2
A lightweight, simple-to-use 1.6.4 modpack designed for both users who are either unfamiliar with mods or those with computers unable to withstand larger packs.
About the pack
Not everyone has a massive monster of a computer. This pack is designed for people with less RAM and older systems. It will give you a full tech tree while being playable on 1GB of RAM and 32 bit Java.These mods had the lightest overhead in testing.