Ok so Intel managed to make a 20W TDP chip that gets 6.x Gflops/W. Call me back when they’ve got a chip that still gets 6.x Gf/W with a 200W 1,200Gflop package like the M3 next on your list. This little fellow is only 50% more efficient than my aging M1 Max!
It’s great that they are making progress. Competition is good. They certainly need good news right now. I have exactly one intel cpu in my house in a NUC I got off eBay and it’s about to be replaced by my M4 mini. My other x86 are Zen (threadripper, 5800x3d, 5950s).