Faster CPU and more memory while still running OSX? My only complaint is it doesn't come with a GPU upgrade. I love the touchpad, the os, and the thunderbolt

Faster CPU and more memory while still running OSX? My only complaint is it doesn't come with a GPU upgrade. I love the touchpad, the os, and the thunderbolt ports. The 10% of the time I have my computer undocked the keyboard doesn't bother me and interacting with the touchbar never was a problem. I'll buy one with the i9 and 2TB SSD within the next 72 hours to replace my 2016 MBP.