Very curious about the performance gains being hinted here: 19% for Golden Cove (vs. Cypress Cove), and 1.5X for Gracemont (vs. Skylake Atom?).
The 19% Golden Cove jump doesn't seem very impressive given Cypress Cove was a regression. As noted, it should've been measured against the newer Willow Cove (e.g. Tigerlake cores) for better indication.
As for Gracemont, 1.5X perf sounds great but how capable will be it for everyday tasks? E.g. if the Big/Performance core has to spin up for almost everything, then it won't be very useful. Furthermore Skylake was initially released in 2015 so 1.5X better after 6 years is way below Moore's Law.