I`m wanting to do a new build but after investigating the 1700 sockets and the 1851 socket, I found that the PCIe lanes are lower than my 2066 socket. The 1700 have 20 lanes and the 1851 at most have 28 lanes. I had a I7 7820X with 28 lanes and it was average but when I went to the I7 9800X with 44 lanes it was day and night. What I`m concerned about is getting an I7 12700KF and it is slowing things down.