That's a given. The question is: how much? As one data point, Tom's Hardware measured¹ 12W for 32 GB DDR4 in 2014, scaling linearly. According to some random g

That's a given. The question is: how much? As one data point, Tom's Hardware measured¹ 12W for 32 GB DDR4 in 2014, scaling linearly. According to some random guy on the Internet², the MBP's LPDDR3 power usage is similar to DDR4 when active, and much lower - 10% - in standby. I'm not sure if standby is limited to system-wide standby, or if the computer can selectively standby portions of the system RAM (that would seem desirable). For what it's worth, this³ is the tech ref of the Samsung memory used in the 2016 MBP (according to the iFixit teardown). So we have a range of 1.2 to 12W for 32 GB (and 0.6 to 6W for 16 GB), if LPDDR3 is comparable to DDR4 and depending on active or standby usage of the memory. ¹ www.tomshardware.com/reviews/intel-core-i7-5960x-haswell-e-cpu,3918-13.html ² With references, it's a good post/thread https://www.reddit.com/r/hardware/comments/5dimal/lpddr3_vs_ddr4_power_usage/ https://www.reddit.com/r/hardware/comments/5dimal/lpddr3_vs_... ³ https://memorylink.samsung.com/ecomobile/mem/ecomobile/product/productDetail.do?topMenu=A&subMenu=tablets&appNo=tablets&appLabel=Tablets&partNo=K4E6E304EB-EGCE&partSetNo=LPDDR3 https://memorylink.samsung.com/ecomobile/mem/ecomobile/produ...