It is a 128bit wide vector design. Which means the wdith of actual vector register is 128bit. The 1024bit figure is due to register grouping of up to 8 vector r

It is a 128bit wide vector design. Which means the wdith of actual vector register is 128bit. The 1024bit figure is due to register grouping of up to 8 vector registers which is mandated in the spec.