Fallout 4 comes with some demanding requirements. Due to its open world nature a powerful CPU quad core, such as the i5 2300 or its Phenom II equivalent is needed. However, on the graphics side you can use the now aging Nvidia GTX 550ti or the significantly stronger Radeon HD 7870 by AMD. For the optimal Fallout 4 experience a new high end i7 processor or the strongest of the FX processors by AMD are recommended. Couple that with a GTX 780 or R9 290X GPU. It is important to note that 8GB of RAM is necessary for a smooth Fallout 4 experience, but you may be able to get away with just 6GB of system memory.