It is: Nvidia GeForce GT 520MX, and I am guessing the version is 376.3 or something like that. I tried to update it in the site but there is no update for 520MX and updates just did not work
My theory on why it didn't support UE games is that unreal use direct X11 by default I think which probably isn't supported with your card which is also probably not supported by Nvidia anymore for updates
