I have an inspirion 5547 with a R7 M265, but the computer "thinks" that I have a M260. Can this affect performance somehow? Is it ok to use the computer like that? and if it is not "ok" to use the computer like that, how can I solve this problem?
I doubt that it will make any difference, but this is not the place where you should be asking this kind of question. You primary site for help on system issues should be Dell's. For this particular question, you might also want to ask at AMD's.