Do not use integrated graphics (at least intel). Had issues when no matter what mod pack, it lags or crashes. Switched java to run on dedicated graphics card and everything works fine now.
Running on Acer aspire v3-772g laptop
Intel Core i7-4702MQ
RAM DDR3 8gb 1600 MHz
GPU Nvidia GeForce 750M 4gb (intel (R) HD Graphics 4600)