Here's how to find out which Mac you own. Just scroll down until you see your current Mac. ( Click here if you'd prefer a giant spec sheet.) Heck, the 13-inch MacBook Pro is smaller than a 13-inch MacBook Air now.īut what do you truly get if you upgrade, and what do you give up? Here's a handy guide to everything that changes if you trade in your old Mac for a shiny new Pro. It might look similar, but it's thinner and lighter, with far more power under the hood, a radically redesigned keyboard and a tiny, potentially amazing touchscreen. The new MacBook Pro is here, available for preorder today, and in many ways it's a very different machine.