Originally Posted by GGuyZ
The AM3 CPUs will have, AFAIK , a DDR2 controller as well as a DDR3 controller. This is the reason they will be backward compatible with AM2 boards.
boredom: If there won't be any significant increase from HT3 - why do they implement it? the 4 core K8L is also a single socket CPU.
As you may have noticed, AMD keeps its CPUs on mostly the same infrastructure. Although DP and MP Optys are on sk1207 and the others are on AM2, the differences between the CPUs are mostly in packaging. They are essentially the same architecture, the K8, and most of the features are common.
As you may have noticed on the AMD 4x4 QuadFX platform review there are some moments when the quad core is slower than a dual core of equivalent speed. Why is that? Placing quads on the same platform as duals tents to hamper with their performance and in this case it seems to be the aging architecture combined with the low HT speed.
My opinion is that the K8L (stars) will have no need of HT3.0 as long as there is one CPU in the system, but once you put 2 or 4 they'll need all the bandwidth they can get.
An article on Tom's Hardware shows the kind of scaling you can expect when having 2xCloverton CPUs (2xQuad Kentsfield server version)... they absolutely suck. That FSB is a major limiting factor for the Quad Intel and AMD doesn't want that to happen to the Stars. Here's a link to the article
, you can see for yourself.