@Karnemeth - SimCity was released in 2013; the last update to the software was in December 2014. You're getting a default error message for an unrecognized card. Yes, it should have just said "unrecognized card" not "below minimum specs" but this is the way it was programmed.
Usually, you can just click through the warning and start the program anyway (as you've done with the old GT630). If it doesn't allow you to start the game, try changing the ConfigManager.txt line from "set DefinitelyFail -3" to "set DefinitelyFail 2" as suggested earlier in this thread. Complete steps are Here and Here
The change will bypass the error message and should start SimCity normally.
