From the looks of it, the retention mechanism of the LGA1700 appears similar to that of Socket H and most other Intel LGA sockets (though dissimilar from the LGA2011/LGA2066). In its client desktop avatar, the LGA1700 has 100 unused pins. This is because the socket is physically identical to the LGA1800, which is speculated to be left for future generations of Intel processors with additional power or I/O pins. The Z-height of LGA1700 is lower than that of Socket H, which entails a major change in the retention module design of most aftermarket CPU cooling solutions.
The LGA1700 socket and Intel 600-series chipset platform will support at least two processor generations—12th Gen “Alder Lake” and 13th Gen “Raptor Lake.” Built on the same Intel 7 node (10 nm Enhanced SuperFin) node as “Alder Lake,” the next-generation “Raptor Lake” silicon will feature 8 “Raptor Cove” Performance cores, and 16 “Gracemont” Efficiency-cores. It’s expected to debut by late-2022.