I have a small 14" monitor, i prefer do not open more than 4 tables and my laptop do not have good RAM memory to open more than that, but I have a friend who lives in poker, he has a mini server with 16 GB of RAM, a fairly large monitor, and he plays 16 tables simultaneously, and he checks statistics while he does, I do not know how he does it, but he It does, I've seen it, he does it, 4 to 6 hour dayli, and then plays the different tournaments..!