The exception for Graviton here is because every ARM vCPU is a full core, whereas an Intel/AMD vCPU is one hyperthread (i.e. half a core). They're not saying Gr

The exception for Graviton here is because every ARM vCPU is a full core, whereas an Intel/AMD vCPU is one hyperthread (i.e. half a core). They're not saying Graviton2 cores are shared. For Intel/AMD, you always get allocated both hyperthreads on a dedicated core; that's why hyperthreaded families start at 2 vCPUs. Only the "T" families feature shared cores.