To help clear things up a little, here some quotes from a couple of sites:
Quote:
|
Besides adding 64-bit capabilities, AMD has made other improvements to its newest CPUs. They include a 1MB L2 cache (up from 512KB), a faster speed system bus based on Hypertransport technology, and new SSE 2 instructions. Probably the most important change, however, is AMD's move to an on-chip memory controller.
|
Quote:
Integrated DDR memory controller
As processor microarchitecture capabilities have advanced, one of the greatest performance limitations has become the system architecture’s ability to provide sufficient low-latency memory bandwidth to the processor core.
The AMD Athlon™ 64 processor and the AMD Opteron™ processor directly addresses this bottleneck by integrating a DDR memory controller into the processor, revolutionizing the way x86-based processors access main memory.
|
For a good overall review, you can check out:
http://www.pcstats.com/articleview.c...id=1469&page=1
and the page about memory controllers at:
http://www.pcstats.com/articleview.c...id=1469&page=5
HtH
TwoRails