2.2GHz P4, 512MB of RAM, NVidia 5600Ultra or ATI 9500pro or better
Though it gave me an idea of which computer that's suited for the game it turned out to be false. I didin't stumble onto this page until today, according to NWN2Wiki the requirements are....
3 GHz Intel Pentium 4 or equivalent processor
1GB System RAM
ATI Radeon X800 series, NVIDIA GeForce 6800 series or higher video card
Minimum system requirements
512MB System RAM
2 GHz Intel Pentium 4 or equivalent processor
128MB Direct3D compatible video card with DirectX 9.0c compatible driver
CD-ROM or DVD-ROM drive
4.6GB free hard disk space
DirectX 9.0c (included)
DirectX 8.1 compatible sound card
Microsoft .NET 2.0 Framework for toolset (included)
Broadband connection for multiplayer online play
Worst case scenario you need a high-end system to get the most out of the game.