We're not here to debate the 15" Retina Mac's position in the world. It's actually the same overall design as the 2012 model, and the pricing has remained largely the same since 2013--these aren't new issues for the Mac. And if you're a Mac person and want a 15" display and/or a more powerful CPU in your laptop, you don't have a choice. What 's new for the mid-2015 model? Apple switched to the Force Touch trackpad first introduced a few months back in the latest generation 13" Retina MacBook Pro. The PCIe SSD storage is up to 2x faster, and is indeed insanely fast. The CPUs and integrated graphics? They're still at Intel 4th generation Haswell with Iris Pro graphics because Intel still doesn't have quad core mobile 5th gen Broadwell chips available. In fact, we suspect that manufacturers might skip Broadwell at this point and go with 6th generation Skylake some time in 2016.