noob wants to upgrade ram

Hey guys, I'm thinking of upgrading the ram on my early 2011 macbook pro from a stock 4gig but I have no idea what logic board model is used so i can't figure out what rams are compatible. And i was also wandering if using 2x 8gig rams would work on my model and if so is it worth it? or would the 2x 4gig be enough. I'm a media student so i do process videos and photos quite often, but not in very big sums. thanks