Is Fallout 4 hard to run PC?

Alongside it in the CPU slot, you want at least a Core i5-2300 or a Phenom II X4 945. The recommended requirements are a bit steeper – at GPU, you are looking at needing a GeForce GTX 780 or a Radeon R9 290X. Fallout 4 also requires 8 GB of system RAM and about 30 GB of free harddrive space.