Chris Kline, the Technical Director from Irrational Games has given a nice overview of the minimum and recommended specifications for Bioshock: Infinite on PC, as well as what gamers can expect from graphics and controls.
MINIMUM PC SPECIFICATIONS FOR BIOSHOCK INFINITE:
• 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 PC SPECIFICATIONS FOR BIOSHOCK INFINITE:
• 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
According to Kilne, the game will accomodate the ability to customise controls, allowing primary and alternate bindings, "PC options screens let you remap all the default action bindings, with both primary and alternate bindings available simultaneously". Good news on the mouse controls also in that the game also promises to "not to alter the sensitivity of high-end gaming mice by applying artificial mouse smoothing, and you can control sensitivity or toggle mouse acceleration in the options screen."
For those PC gamers that prefer controllers ("traitors" according to the press release), the game also accommodates "three separate controller layouts (Default, Marksman, and Retro), each of which support loads of configuration options. You can tweak aim assist, sensitivity, vibration, and look inversion". Left handed players are also able to access controller layouts that support multiple analogue stick configurations.
Go "wider" to enjoy more of "Columbia’s gorgeous vistas"
For those gamers looking forward to an improved graphical experience with your widescreen monitor, fear not, because this game will support widescreens allowing you to go "wider" to enjoy more of "Columbia’s gorgeous vistas". Multi-monitor gaming is also supported with AMD Eyefinity, NVIDIA Surround, and Matrox TripleHead2Go. Further graphics controls will also be available through "separate controls for aspect ratio, resolution, and display mode (fullscreen, windowed, and fullscreen windowed)".
Very importantly on the graphics side is that Bioshock: Infinite is DX11 game, but DX10-compatible hardware is also supported. However, if you are lucky enough to have a DX11 graphics card, you can take advantage of access to "contact-hardening dynamic shadows, diffusion depth of field, high definition ambient occlusion and optimized antialiasing". Full resolution textures are being shipped with the game, so brace yourself for a three-DVD install!
The interesting news I found was this "We’ve worked hard to include graphics options that scale both up and down, so you can play BioShock Infinite even on less powerful setups with integrated graphics". So, it doesn't sound like you need a beast of a machine to run the game. Maybe I can even sneak in a couple of rounds on my work laptop (shhhh!).
Steam Big Picture is also supported
The game will also be available on Steam with Steam Cloud support, as well as offer support for Steam's Big Picture mode, so you can play it on your big screen TV.