Check out the required PC system specifications required to run Irrational Games’ Bioshock Infinite:
MINIMUM
OS: Windows Vista Service Pack 2 32-bit
Processor: Intel Core 2 DUO 2.4 GHz / AMD Athlon X2 2.7 GHz
Memory: 2 GB
Hard Drive: 20 GB free
Video Card: DirectX10 Compatible ATI Radeon HD 3870 / NVIDIA 8800 GT / Intel HD 3000 Integrated Graphics
Video Card Memory: 512 MB
Sound Card: DirectX Compatible
RECOMMENDED
OS: Windows 7 Service Pack 1 64-bit
Processor: Quad Core Processor
Memory: 4 GB
Hard Drive: 30 GB free
Video Card: DirectX11 Compatible, AMD Radeon HD 6950 / NVIDIA GeForce GTX 560
Video Card Memory: 1024 MB
Sound Card: DirectX Compatible
Source: http://irrationalgames.com/insider/pc-specifications-for-bioshock-infinite-announced/
