what are the system requirements for doom?
['OS: Windows 7/ 8.1/ 10 (64-bit versions)', 'CPU: Intel Core i5-2400/ AMD FX-8320 or better.', 'GPU: Nvidia GTX 670 2GB/ AMD Radeon HD 7870 2GB or better.', 'Memory: 8GB of RAM.', 'Storage: 55GB free HDD space.']