The Steam page for HITMAN now offers surprisingly steep system requirements for the upcoming continuation of IO Interactive's assassination series. Here's what they say it will take to run the game:

MINIMUM:
OS: OS 64-bit Windows 7
Processor: Intel CPU Core i5-2500K 3.3GHz / AMD CPU Phenom II X4 940
Memory: 8 GB RAM
Graphics: NVIDIA GeForce GTX 660 / Radeon HD 7870
DirectX: Version 11

RECOMMENDED:
OS: OS 64-bit Windows 7 / 64-bit Windows 8 (8.1) or Windows 10
Processor: Intel CPU Core i7 3770 3,4 GHz / AMD CPU AMD FX-8350 4 GHz
Memory: 8 GB RAM
Graphics: Nvidia GPU GeForce GTX 770 / AMD GPU Radeon R9 290
DirectX: Version 11