TechPowerUp reports Comet Lake-S will feature the 10-core Core i9-10900K processor but the bad news is that this will require a new motherboard. Comet Lake-S will use the new LGA1200 socket and will arrive with the Z490 chipset.
Platform maps of these PCI-Express gen 3.0 based chipsets make them look largely similar to current 300-series platform, with a few changes. For starters, Intel introducing its biggest ACPI change since C6/C7 power states that debuted with "Haswell;" with the introduction of C10 and S0ix Modern Standby power-states, which give your PC an iPad-like availability while sipping minimal power. This idea is slightly different from Smart Connect, in that your web-connected apps and processor work at an extremely low-power (fanless) state, rather than waking your machine up from time to time for the apps to refresh. 400-series chipset motherboards will also feature updated networking interfaces, such as support for 2.5 GbE wired LAN with an Intel i225-series PHY, 802.11ax WiFi 6 WLAN, etc.Overall, not much to get excited about but all Intel chips will now get hyper-threading. This means four cores and eight threads for the Core i3, six cores and twelve threads for Core i5, eight cores and sixteen threads for Core i7, and ten cores with twenty threads for the Core i9.
We'll likely see some LGA1200 motherboards at CES 2020 in January.