Minimum and optimal PC system specifications for Far Cry 4 can be found on Ubisoft's UbiBlog, giving a sense of how the shooter sequel will play on user's rigs. This is another example of a recent trend of games requiring a 64-bit operating system. Here they are, slightly reformatted for space

MINIMUM

Supported OS Windows 7 SP1, Windows 8/8.1 (64bit versions only)

Processor Intel Core i5-750 @ 2.6 GHz or AMD Phenom II X4 955 @ 3.2 GHz

Memory 4GB

Video Card NVIDIA GeForce GTX 460 or AMD Radeon HD5850 (1GB VRAM)

Direct X Version 11

Hard Drive 30 GB available space

Sound Card DirectX 9.0c compatible sound card with latest drivers

OPTIMAL

Supported OS MS Windows 7 SP1, MS Windows 8/8.1 (64bit versions only)

Processor Intel Core i5-2400S @ 2.5 GHz or AMD FX-8350 @ 4.0 GHz or better

Memory 8GB

Video Card NVIDIA GeForce GTX 680 or AMD Radeon R9 290X or better (2GB VRAM)

Direct X Version 11

Hard Drive 30 GB available space

Sound Card DirectX 9.0c compatible sound card with latest drivers