A GT 630 is right in the neighborhood of GT 9800 or the HD 4870, so you'll likely be able to *run* it, though I can't guarantee how pleasant the experience will be. You'll need to use fairly low settings. As for FIFA 15, the listed GPU requirements are tighter (a GTX 650), but people have reported being able to at least sort of play it with weaker GPUs, accepting low setting and being forgiving of some dropped frames. I'd recommend getting more modern budget GPU at least, but to answer your question, you should be able to *run* the games.