Quote Originally Posted by BeepBeep2 View Post
Efficiency was awesome on AM2 compared to intel, what are you talking about?
Of course you could compare with Intels FSB limited chipsets. Which says nothing about the effiency in the memory controller. It only shows limitations in the bus.

Look at this:
http://www.anandtech.com/show/1991/4
13% increase in read and 28% increase in write. With double the theoretical bandwidth. And that's with no bottleneck like the FSB in between.

That's a very big dip in efficiency. And the efficieny didn't increase with AM3.

Compare with i5 or i7 with dual channel IMC. The difference is huge. Phenom II is almost down at C2Q territory. C2Q being limited by a bus only half the speed of the memory.

http://www.techspot.com/review/193-i...750/page5.html
http://www.anandtech.com/show/2832/7

The problem is that Phenom II don't have much faster memory controller than the 939-CPUs had. It's just hacked to support DDR2 and DDR3. The performace haven't scaled.