Ok, so I need a new computer.
The link you posted indicates:
3D-graphics card from NVDIA
or ATI with 512 MB. At least as fast as NVIDIA 9600 or ATI
Radeon HD 4850
On the Apple comparison site none of the new computers come with a NVIDA 9600 or ATI 4850.
http://www.apple.com/why-mac/compare/
So, I'm not sure which computer it will run on.