They tried to jump too far with intel 10nm. The process node names no longer represent actual transistor size, they just indicate a new generation. With intel 1

They tried to jump too far with intel 10nm. The process node names no longer represent actual transistor size, they just indicate a new generation. With intel 10nm they took a risk and tried to shirk the die more then would normally happen in generation jump. If it worked it would put them a whole generation ahead of TSMC and secure process leadership. But physics bit them in the ass. It turned out that shirking that small was much harder then they thought, and the cells they were using were not robust enough to handle it. Instead of putting them way ahead it cost them years of recovery and let AMD sneak up from behind.