Differences between 17 and 15 Macbook Pro (2011)

The 17 and the top of the line 15 inch MacBook have exact same innards. The main differences between the two are ports, resolution, weight, and body size.I compare their numerical properties. The gadgets you can hook up to the expresscard/34 slot http://www.youtube.com/watch?v=cN2z3KJT-CU Keywords: 17 vs 15 MacBook pro 2011