In terms of comparison: The only difference is clock speed. The Core i9-14900K can boost to 6GHz out of the box, while the Core i9-13900K tops out at 5.8GHz. In addition, the Core i9-14900K comes with a 200MHz boost to both the base and boost clock speeds of the performance cores and efficiency cores.
Unless there are other differences, the Z790 Dark / Z790 Classified is still a very good MB for 13900K or KF or KS variant.
Given that LGA1700 is the last for 13th/14th Gen CPUs , LGA 1851 is an upcoming socket for Arrow Lake-S desktop processors and Lunar Lake-S desktop processors, and EVGA might not make another motherboard, might as well use it for the 13th Gen.
Thoughts?