For the Xbox One, you have your choice of either the Digital Edition ($59.99) or the Digital Deluxe Edition ($99.99). The Digital Deluxe Edition includes access to the Season Pass, which guarantees at least four DLC packs and other content to be revealed at a later date.
The same offerings can also be found for the PC version of the game, which you can pre-order through Steam.
If you pre-order any version, you are guaranteed access to the Black Ops 3 Multiplayer Beta. Pre-orders also grant you access to a personalization pack and two Advanced Supply Drops for use in Call of Duty: Advanced Warfare. For those leaning towards the PC release, here are the minimum system requirements.
OS: Windows 7 64-Bit / Windows 8 64-Bit / Windows 8.1 64-Bit
Processor: Intel Core i3-530 @ 2.93 GHz / AMD Phenom II X4 810 @ 2.60 GHz
Memory: 6 GB RAM
Graphics: NVIDIA GeForce GTX 470 @ 1GB / ATI Radeon HD 6970 @ 1GB
DirectX: Version 11
Network: Broadband Internet connection
Sound Card: DirectX Compatible
Processor: Intel Core i3-530 @ 2.93 GHz / AMD Phenom II X4 810 @ 2.60 GHz
Memory: 6 GB RAM
Graphics: NVIDIA GeForce GTX 470 @ 1GB / ATI Radeon HD 6970 @ 1GB
DirectX: Version 11
Network: Broadband Internet connection
Sound Card: DirectX Compatible