the two chips share a single connection to the memory controller and the rest of the system.  It's a bottleneck.  Even now, when Intel have upgraded their chips to 64-bit, putting 64-bits of data across that bottleneck just exacerbates the problem.&quot;<br />
<br />
The net result?  Media intensive applications slow-down like crazy on Xeon workstations, and fly on Opteron workstations, according to Charlie.  Rather than going straight to Apple Macs, the previous choice of the media-savvy, &quot;AMD techn