Qualcomm and Apple didn't get the memo that ARM cores were supposed to lay down and die vs x86, A77 is already competitive vs Zen 2 (4800u boosting far higher than EPYC Rome no less) and A13 matches TGL, both with significantly constrained thermals and power vs their x86 counterparts, as usual.To catch up with Milan, ARM parts will need to be twice as fast as the A77 while consuming orders of magnitude less power. This is not hyperbole.
The A77 trails the Apple A13 and most current high end x86 chips by 30-40% in single threaded performance. The Apple A13 has 2 big cores that can match last year’s x86 in performance, but they run too hot and consume too much power to scale up. The A14 is expected to only be 5% faster in ST performance than the A13 and will be significantly slower than this year’s x86 chips (Zen 3, Tiger Lake, etc.) despite having a huge node advantage.