The way to do that would be with a chip & socket that has 4 independent memory channels (threadripper I think has eight now, but maybe used to have four?) and a many-layered motherboard that optimizes the routing and placement of each dimm slot, ideally with only 1 dimm slot per channel for maximum speed. The high end stuff with many memory channels generally isn't designed for pushing RAM clocks to gaming desktop speeds, though. You'd probably need to skip on ECC too or overclock and manually time some.
