[notacoward]

In other words, you don't really know enough to say there's a difference. What we do know is that they're the same basic architecture and instruction set, at very similar process levels, so it's not at all unreasonable to estimate that the performance difference is proportional to the clock-rate difference. That clock-rate difference is probably dwarfed both by Viridis's 50% nodes-per-rack advantage and Copper's 2x memory-per-node advantage, so the quibble just wasn't worth it. Thanks for adding so much to the discussion.

[ris]

No - I did not at all say they were very similar. The truth is we have very little to go on to know how much like a Marvell Armada XP is like an A15. In the past, Marvells have been known to be quite different from their stock counterparts.