Harpertown: New 45nm Xeons from Intel
Posted on: 09/17/2007 05:00 AM



The new Harpertown based Xeons offer some clear benefits over their dual and quad-core predecessors, and they do it within the same thermal and power ranges. Pipeline improvements and larger L2 caches increase performance at the same clock speed, and improved power management features reduce the total power usage and associated heat output. The 45nm process also provides more headroom for clock speed increases and as well as the Core 2 architecture is scaling with clock speed, Harpertown is only going to get better going forward.

One thing is certain, Harpertown coupled with the Stoakley platform offers some serious bang for the proverbial buck. Both in performance and power usage.

We've also seen a few negatives in this article. Intel is still tied to FB-DIMM technology, and while that technology offers quite a few positive features, it is also saddled with high power consumption. As impressive as the performance-per-watt numbers were for the Stoakley platform, I can only imagine how much better it would be without the additional 40W+ overhead introduced by the FB-DIMMs. The faster front side bus opens up the memory bandwidth a bit allowing for increased performance in a wide variety of applications and workloads. But, it's still a bottleneck in some cases.

All in all, I think Intel is in a pretty good position to retain their performance lead in the server and workstation space... At least for the immediate future.


Printed from 2CPU.com (http://www.2cpu.com/contentteller.php?ct=articles&action=pages&page=harpertown_new_45nm_xeons_from_intel,15.html)