Though I don't think phase-change is really suitable for a consumer CPU. I would think it's just going to be bundled with a big integrated water-cooler (a bit like AMD's FX-9590 CPU which was a 220TDP part)
300W??
http://www.legitreviews.com/wp-content/uploads/2017/09/overc...
Try 800W.
it is simply not practical to boost freq from 2.5 base/3.5 turbo to all cores 5Ghz.
If this had a different core count from the 8180 I would agree but I wouldn't expect Intel to do a completely separate design just for a model that will need to be highly binned regardless.
That or Intel has made some serious magic happen at 14nm++++++++++.
[1] https://www.anandtech.com/show/9390/the-amd-radeon-r9-fury-x...
will be interesting to watch what AMD is going to offer using their new 12nm toy. ;)
Possible IPC enhancements from architecture optimizations of Zen2 + better clocks = first time since over a decade that AMD beats Intel in single threaded workloads? Due to their better SMT implementation (?) they seem to beat Intel in multithreaded scenarios already with same core count and around the same clock (at least in Cinebench).
Those boxes on stage sure don't look air-cooled to me. The plumbing seriously resembles that of a phase-change setup, which would actually make sense here as an extremely low operating temperature would help tame the leakage power tremendously.
In summary though, it ain't gonna be cheap to buy or cool.