The sysbench metrics seems like a much fairer comparison, and CockroachDB looks great in those metrics as well, so I don't really get why you are leading with a comparison that looks really sketchy at first glance.
We also hear your point about efficiency as tpmC (throughput) alone isn't sufficient to compare systems without taking hardware into account. TPC-C asks users to provide a tpmC per dollar amount. We conducted this price comparison previously in this blog post https://www.cockroachlabs.com/blog/cockroachdb-2dot1-perform.... These results are even lower in 19.2 because we can achieve greater tpmC with fewer nodes.
This page wasn't met to be competitive-we simply showed Aurora as a reference point. Since we want to focus on CockroachDB we will remove the Aurora comparison.