We'll let the actual products be the judge of that. We wouldn't reach the full potential of the nodes in the first iteration anyway, many of the advantages depend on EUV.7nm seems superior. I wonder what will happen when both AMD (7nm) and Intel(10nm) have CPUs with clocks near the 5Ghz barrier. Are we going to start the Battle of IPC improvement or will the CPUs market stagnate? Would a "simple lithography change" bring IPC gains?
And no, the node or "lithography change" doesn't impact IPC.