- Jul 28, 2019
Don't be influenced by desktop CPUs. Server 64c Epyc 7742 has a base frequency 2.25 GHz (may boost to 2.5 GHz within TDP). Apple A13 runs at 2.66 GHz too.... so for servers is freqency identical however performance is around +50% higher for fruit machine A13. Power consumption for A13 is around 4W, subtract consumption of GPU and idling/sleeping 5 more cores, it can be 3.5W x 64c = 224 W (Epyc has TDP 225W). Pretty comparable consumption with massive performance gain +50%.Apple SoC at such a low clockspeed that nobody's really going to care about that comparison anyway
6xALUs is killing feature. That is loud alarm for Intel and AMD and they should lose a sleep. So far they are lucky that this 6xALU beast is bounded in iPhone only thanks to Apple management. Steve Jobs was very challenging person and IMHO he would had a courage to change server business by server version of their 6xALU beast (Apple needs for their cloud service thousands servers too). And cloud service allows to keep HW in Apple's hands by selling service instead of HW.
Zen 3 with 6xALUs will be already 3 years behind Apple in CPU technology (A11 appeared in 2017). If Zen 3 won't be wide core, then it is tragedy for x86 and ARM with Cortex A78 will take server and laptop markets. Don't forget how ended up superior archs like IBM PowerPC, Itanium, Motorola 68000, DEC Alpha - all these were smashed by cheap, mass produced and thus faster evolving black horse called x86. Today the history repeats, just this time the black horse is ARM.