. . . except that Rome is objectively faster per socket than anything the ARM server vendors are selling right now. All the big players have their Milan samples too, and likely have access to early commercial silicon through ODM contracts. You seem to reshape numbers to fit whatever broken narrative suits you.
Right now, today, there is exactly one ARM server product anyone would even consider, and those are Graviton2 instances through AWS. That's it. ThunderX3? Not available yet. Ampere anything? Not available yet. A64FX? Really niche and . . . availability unknown. There were some wafers sighted late last year. Oh wait, you can get the Huawei 64c chip, but I still haven't seen Kunpeng benched against anything.
Rome is faster per socket, that's right. But at the cost of lower performance per thread and
250 225W TDP. That's not clear win.
Graviton2 is also faster per socket than any Intel which is the majority of market right now.
80 core Ampere Altra comes soon this year - it will match Rome in terms of performance per socket.
If next year will come Graviton3 or other A78 based systems at 5nm (they can put easily 128-160 cores in monolith) then x86 is done.
And Amazon is 40x bigger company than AMD, they have money to adopt 5nm next year.
And don't forger A77 was about 20% INT IPC jump and
35% FPU jump. Just A77 based 128 core ARM will beat Zen3 Milan bad. 160 core A78 is the true nightmare for AMD and Intel. If ARM vendors will adopt chiplet design and start putting more dies per socket, that's game over for x86.
AMD's 5nm 96 core Zen4 is schedulled when? 2022? Outch... x86 is done.