It has been a full seven months since AMD released detailed information about its Opteron A1100 server CPU, and twenty two months since announcement. Today, at the Hot Chips conference in Cupertino, CA, AMD revealed the final pieces about its ARM powered server strategy headlining the A1100.
You can find more information from AnandTech Portal | AMD’s Big Bet on ARM Powered Servers: Opteron A1100 Revealed
I am interested in the flowing questions,
1、Opteron A1100 uses eight Cortex-A57 consist of four A57 clusters, since one A57 cluster can contain up to four A57 cores, why A1100 doesn't use two A57 clusters and each cluster contains four A57 cores.
2、Cortex-A57 suppports TrustZone, but A1100 still uses Cortex-A5 to realize TrustZone. I guess the purpose of this design is to be compatible with other AMD SoCs which use x86 core as main CPU
and Cortex-A5 as TrustZone CPU.
What do you think about Opteron A1100?