Advanced Micro Devices Inc (AMD)

[Elmer Phud]

Sgolds -

Yes [Opteron and A64 are 2 different die]. This is an area of confusion because they use the same core. (A lot of published garbage out there confuses 'core' and 'die' - much different things, of course!) Opteron and A64FX use the same die - and even the same package, temporarily. Socket 754 A64s have less cache, only one memory controller and only one HT. One core, two dice (or, some prefer, dies).

Now that we have established that you believe they are 2 different die, how about showing where AMD, or a reliable source says they are 2 different die. It is quite possible to disable portions of cache and aHT channels and repackage an Opteron die. You are very free at claiming facts but usually short on backing them up. I admit I have no data to prove my point but you've provided none either.