Originally Posted by Tsumi
Then educate me. You seriously think that each time they do a tock, they do a brand new architecture from the ground up? And we're just focusing on the major architectures here, not the minor ones nobody outside of a few specialized applications use.
It took AMD several years to get Bulldozer to be ready, and when it came out, there were still a lot of rough, unfinished areas. Intel definitely doesn't do a ground up architecture every two years.
The core 2 architecture was brand new built from the ground up.....AMD ruffled Intel so bad with the Arhlon 64 that Intel had to make something completely new to put them back on top.
Nehealm was also brand new and built from the ground up, it brought HT back, added another memory controller and finally put the IMC in the CPU.
Sandy bridge was also built from the ground up but also shared many of the things that Intel learnt and implemented in Nehealm, memory controller got a major overal and so did various other parts of the architecture.
Haswell is pretty much the same story as Sandy Bridge, new architecture but borrows the best bits from the previous architecture.
And it did not take AMD several years to make Bulldozer, the Bulldozer they ended up releasing was not the original Bulldozer.
AMD had actually built a version of Bulldozer years ago but due to performance issues it was scraped and AMD went back to the drawing board and made Bulldozer v2.0 which is the Bulldozer that got released.