See https://forums.factorio.com/forum/vie ... 11&t=13295 and https://forums.factorio.com/forum/vie ... =49&t=5607 for the older threads on this subject.
Doesn't seem the 0.12 VRAM optimizations have helped any for me.
My PC is still the same:
i7 2400K @3.4 GHz
8GB ram
Geforce gtx470 (1280 MB), driver version 355.60
onboard nvidia audio
Win7 x64 sp1
game installed on a raid0, appdata on SSD
mods: https://www.dropbox.com/sh/xwuofpysl9nm ... hLvfa?dl=0