Jonathan Morin tweets the minimum requirements for the Windows edition of Watch Dogs, the sandbox action game also known as Watch_Dogs (thanks CVG). He also adds that players going beyond this minimum will be rewarded, saying: "PC on very high setting is REALLY stunning if you ask me. As for density it [is] also very high of course." Here are the specifications:

IntelCore 2 Quad Q8400 2.66Ghz or AMDPhenom II X4 940 3.0Ghz,
6GB RAM, 1024 VRAM DirectX 11 Shader 5.0
SCard: DirectX9
25 GB