nothing major changed from skylake to kaby lake and to coffe lake
Cache changed in coffee lake, it's very important cos even such cpus like AMD FX-8350 mine very good - poor per-core performance, but great cache amounts, that's it. Xeons v1 do the same.
Wanna upgrade my work machine. I do like i7-7800x/7820x with avx-512, but I think I'd go for ryzen...