Like Renoir-H, Intel Comet Lake-H will lack an integrated Thunderbolt 3 controller
Intel just made official its direct successor to the 9th gen Coffee Lake-H series with 10th gen Comet Lake-H. The chipmaker is promising single-core Turbo Boost clock rates faster than 5 GHz, faster DDR4-2933 memory support, and octa-core Core i7 options to better compete against the 7 nm octa-core Ryzen 7 4800H. The unlocked Core i9-10980HK will be the crown of the series distinguished by its 5.3 GHz maximum single-core clock rate compared to "only" 5.0 GHz on the last generation Core i9-9980HK.
However, don't expect Comet Lake-H to support any major new hardware features over Coffee Lake-H since both are nearly identical architecturally. An integrated Thunderbolt 3 controller, for example, continues to be absent in contrast to the integrated controller on the 10th gen Ice Lake-U series. This puts the onus on OEMs to continue adding external Thunderbolt 3 controllers onto their Comet Lake-H laptops which will occupy additional motherboard space and increase costs. Otherwise, OEMs can choose to simply forego the dedicated Thunderbolt 3 controller to save on costs.
Intel says the new Comet Lake-H chips will be able to support up to two controllers for a total of four Thunderbolt 3 ports should OEMs decide to go that route. Though a novel feature, we can't imagine many manufacturers wanting to implement so many Thunderbolt 3 ports in the first place.