First time buyer. QX410 or RF510?

This will be my first time buying a new laptop and I'm very interested in Samsung's lines. I've liked the QX410 and RF510-S01, they're both i5 and I believe they have the same graphics processor. They're both going for about $750. You guys may be familiar with these laptops, which do you think has a slight edge over the other? or is overall the better deal?