So in the last couple years, especially for Apple, Solid State Drives have made leaps and bounds in terms of read write speed. Even the 2015 MBP had a very fast drive and the 2016 (on paper) runs circles around even it. I've done some searching and can't find any tests or results on the subject but I'm wondering: how does a swap/cache/paging file (essentially virtual RAM) on these new speedy SSDs compare to physical RAM? With the 16 GB limit of DDR3 RAM can I add say 40 extra gig of Virtual RAM and see a 15% drop performance compared to all physical or what? If these SSDs can get within 10% of physical RAM the 16 GB limit would be completely doable. RAM speeds are always increasing too so with the LPDDR3 at a certain megahertz, how much are we losing compared to DDR4? Has anyone seen or tested things like this with the 2015 MBP or other SSDs?