If you have a legitimate key, the game will try to activate with Origin.
FIFA 14 system requirements. FIFA 14 is a pretty old game, and its system requirements are not that high. However, it is not alway...
1.8 GHz Core 2 Duo
/ AMD Athlon II X4 600e 2.2GHz, 512 MB VRAM (e.g., GeForce 8800 GT), and 8 GB free disk space.