The mbp uses the same hq series i7 as those thinkpads, but apple chose soldered lpddr3 RAM, which that i7 supports up to 16 gb, over socketed ddr4, which it sup

The mbp uses the same hq series i7 as those thinkpads, but apple chose soldered lpddr3 RAM, which that i7 supports up to 16 gb, over socketed ddr4, which it supports up to 64 gb. Lpddr3 uses the same amount of power when active, but less in standby and idle. So apple optimized for idle battery life and thinness. I have one of those thinkpads, it's chunky.