Intel has a downloadable technical database, shows and for sure reaffirms at least two eight-core Coffee Lake processor, it also shows TDP at 95 and 80 watts. The desktop part will be a 95W model, the 80W version would be a Xeon.
The listing describes test procedures for the CPUs. Earlier this week in the SiSoft Sandra database some entries already popped up from engineering sample 8-core processors. Further specs like base and turbo frequency information have not been shared, this entry was spotted by computerbase.
Intel two weeks ago already showed the accompanying Z390 chipset for the new 8-core parts, by accident as the info was pulled a day later. Z390 will support all Coffee Lake generation desktop processors but would also be compatible for the next-generation. It however is and will be a chipset intended for 8-core Coffee Lake CPUs. Z390 will get an LGA1151 socket using the traditional DMI 3.0 chipset-bus (which basically is an x4 PCIe link lane up/downlink. Similar to the Z370 chipset, it’ll have 24 PCI-Express gen 3.0 lanes. Also similar is storage at six SATA 6 Gbps ports with AHCI and RAID support; and up to three 32 Gbps M.2/U.2 connectors. LAN remains the same as well. 1 GbE, Intel recommends their Wireless-AC 9560 card for the motherboard manufacturers to pair this chipset with for 802.11ac and Bluetooth 5. Some differences are spotted though, USB is configured at six 10 Gbps USB 3.1 gen 2 ports, ten 5 Gbps USB 3.1 gen 1 ports.