Advanced Micro Devices Inc (AMD)

[kpf]

blauboad

Its the same die. The memory specifications that can be handled by the on-die controller have been fixed some three years ago (for a planned launch date in 2002). That was before Dual-DDR came into the equation. In fact, Opteron (and FX) are not Dual-DDR capable, but 128-bit-wide-access capable (which gives pretty much same results as dual 64-bit-access) for ECC memory. 64-bit wide access (single channel) is possible without ECC.

Maybe somebody else can correct/add/clarify in a more technical way. I know in fact it is not 128-bit-access, but 1xx bit, so it is a simplified view on it.

K,