[Insuber]

The performances depend very much on your PC. All of the following conditions must be reunited to have a smooth experience at High settings:

Win 64 bit
4-core CPU, possibly O/C'ed at >4 GHz
recent video card (2010 generation), with 1.28 GB at least, and possibly nVidia
4 GB RAM or more

Failure is probable if you have at least one of the following conditions:


Windows XP
Edit: video cards with less than 1 GB (512 MB is a no go), mid range cards older than 2009, or high range cards older than 2008
Edit: SLI/Crossifire of two feeble video cards (SLI and XFire is not granted to work well)

Cheers,
Insuber