Nvidia's upcoming Hopper HPC accelerator, the GH100, is now being rumored to sport a 21% higher surface area compared to Ampere's GA100. And contrary to reports so far, Hopper will continue to be a monolithic die and not a multi-chip module (MCM), though it is also possible that both monolithic and MCM variants of Hopper exist targeting different use cases.
https://www.notebookcheck.net/1000-W-Nvidia-Hopper-GH100-rumored-to-be-21-larger-than-Ampere-GA100-will-be-monolithic-die-contrary-to-popular-perception.596364.0.html