Comet Lake (microprocessor)

Comet Lake is Intel's codename for its 10th generation Core microprocessors. They are manufactured using Intel's third 14 nm Skylake process refinement, succeeding the Whiskey Lake U-series mobile processor and Coffee Lake desktop processor families. Intel announced low-power mobile Comet Lake-U CPUs on August 21, 2019, H-series mobile CPUs on April 2, 2020, desktop Comet Lake-S CPUs April 30, 2020, and Xeon W-1200 series workstation CPUs on May 13, 2020. Comet Lake processors and Ice Lake 10 nm processors are together branded as the Intel "10th Generation Core" family. Intel officially launched Comet Lake-Refresh CPUs on the same day as 11th Gen Core Rocket Lake launch.
Generational changes.
All Comet Lake CPUs feature an updated Platform Controller Hub with CNVio2 controller with Wi-Fi 6 and external AX201 CRF module support.
Comet Lake-S compared to Coffee Lake-S Refresh
Comet Lake-H compared to Coffee Lake-H Refresh
Comet Lake-U compared to Whiskey Lake-U
One notable architectural change of Comet Lake from its predecessors is removal of TSX instruction set extensions.
Entry-level CPUs like the i3 series no longer support ECC memory. 
List of 10th generation Comet Lake processors.
Desktop processors.
The i9-10900K and 10900KF support Thermal Velocity Boost up to 5.3 GHz. The i9-10900, i9-10900F and i9-10850K support Thermal Velocity Boost up to 5.2 GHz.
Workstation processors.
Comet Lake-W CPUs require W480 chipset.
Xeon W-1290 and W-1290P support Thermal Velocity Boost up to 5.2 GHz and 5.3 GHz respectively.
Mobile processors.
H-series (High power).
Core i5 CPUs lack Thermal Velocity Boost.
U-series (Medium power).
The following SKUs additionally support Intel vPro and LPDDR4-2933 memory: i5-10310U, i7-10610U, i7-10810U.
Pentium and Celeron CPUs lack AVX2 support.
List of 10th generation Comet Lake Refresh processors.
Desktop processors.
On March 16, 2021, Intel announced the refreshed models of Comet Lake Core i3 and Pentium Gold processors. These processors have the same characteristics as their original parts, albeit with a 100MHz higher frequency and the last digit changing from zero to five.