They have been shipping multi die CPUs for quite a while, but the interconnect is closer to a PCIe connection (slower, longer range, less contacts). Intels upc

They have been shipping multi die CPUs for quite a while, but the interconnect is closer to a PCIe connection (slower, longer range, less contacts). Intels upcomming Saphire Rapid server CPUs are extremly similar, with wide connections between two close dies. Crossectional bandwith is in the same order of magnitude there.