These numbers are so large they're difficult to contextualize. For comparison, the most powerful supercomputers today operate in the range of 10^18 FLOPS.
It's crucial to emphasize that these are theoretical upper limits based on our current understanding of physics. Practical implementation, if ever possible, would likely fall short of these absolute limits due to engineering constraints, error correction needs, and other factors we may not yet understand.
The concept of computronium pushes our understanding of computation to its theoretical limits, intertwining advanced physics, information theory, and computer science in ways we're only beginning to explore.