Quote Originally Posted by GoldenTiger View Post
No, you can't... it is simply copied individually per-chip across its own individual 256-bit bus to its own bank of 512MB, there is no intercommunication that combines the bandwidths.
why don't
in AFR one bus is used fully with frame A, another with frame B

so why can't I consider this as powerful as one wide bus?

there's no need for intercommunication between the two chip