Current specs listed below.
Minimum:
OS: Microsoft Windows XP/Vista/7/8
Processor: 2 GHz Dual core
Memory: 3 GB RAM
Graphics: nVIDIA GeForce 8800, 512 MB RAM or ATI Radeon HD 3850, 512 MB RAM
DirectX: Version 9.0
Network: Broadband Internet connection
Hard Drive: 2 GB available space
Recommended:
OS: Microsoft Windows 7/8 (64-bit)
Processor: 3 GHz Quad core
Memory: 4 GB RAM
Graphics: nVIDIA GeForce GTX460, 1 GB RAM or AMD Radeon HD 6850, 1 GB RAM
DirectX: Version 9.0
Network: Broadband Internet connection
Hard Drive: 2 GB available space
So long as there is Multi-threaded support and ability to use more than 4GB ram then all should be good but I do also hope that that there is x64bit support.