Heyo, workloads that fit in RAM are not that interesting. I hope they have identified their market ahead of time, for their sake, because I don't think it's valuable.
That was used to highlight the maximum improvement expected. When the working set doesn’t fit into RAM then you will get some combination of a smaller amount of performance improvement plus a reduction in CPU usage. The faster the storage, the greater the increase in tps that you’ll see. Note that replication is often CPU bound. We will be applying this to non-database workloads as well in the near future.