Hi. I know that 920mx is better gpu but is there a very big differences between them?? See this:
http://www.game-debate.com/gpu/index.php?gid=3453&gid2=3220&compare=Nvidia%20GeForce%20920MX%202GB-vs-Intel%20HD%20Graphics%20530%20Desktop
http://www.game-debate.com/gpu/index.php?gid=3453&gid2=3220&compare=Nvidia%20GeForce%20920MX%202GB-vs-Intel%20HD%20Graphics%20530%20Desktop