Largest Minecraft mod from memory?

What is the mod that consumes the most memory so I know one that consumes 17mb and is the OreSpawn mod but is there a bigger one?

I found this list on the internet:

Orespawn | Don't know about version
Twilight Forest
Thermal Series | (Expansion, Foundation, Dynamics)
Tinkers Construction & PlusTiC
Advent of Ascension (Nevermine) or DivineRPG for older versions
Decocraft2
Thaumcraft
Mo 'Creatures

Ok thanks, I'll have a look which of the biggest is later