Is there? There sure is the shady 4th box in the CAD'ed pics AMD has released on K8L...
But the shady box isn't necessarily a marker of a 4th decoder. It
is just a instruction ROM (memory) after all. Not a decoder. Where does it say that's an Rev.G? Certain interviews claim this blue die is a nonproduction prototype. :confused: Die shots? Where?
You mean those
drawn CAD core layout schemes?
Doubled FPU doesn't mean doubled performance. Doubling things don't always translate to 100% performance increase. More ALUs?
According to AMDs slides (
1,
2) there's an identical amount of ALUs/core on K8L as on K8.
3 to be exact.
There goes that 25-40%...
K8L L1 cache has dual 128bit entries. Not 256bit.
As per to
Phil Hester's slides, K8L L2 cache is identical to K8 with a width of 128bit.
The L1 on C2D on the other hand iss 128bit wide for instructions and 256bit wide for data. And it also has a real 256bit wide L2. C2D has
3 SSE units of which 2 are symmetrical.
Thus C2D does 3 128bit SSEs ...
I find the huge 32byte instruction fetch and OoO more interesting on K8L...