It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
AMD vs. Intel: power efficiency in the server room rests on RAM AMD vs. Intel: power efficiency in the server room rests on RAM
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read


AMD vs. Intel: power efficiency in the server room rests on RAM
Reply
 
Thread Tools
Old 24th July 2007, 08:45   #1
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 78,577
jmke has disabled reputation
Default AMD vs. Intel: power efficiency in the server room rests on RAM

Very generally speaking, all three reports found that, when idle, Opteron-based systems tend to consume around 40 percent less power than similarly equipped Woodcrest-based systems. When transaction processing and database workloads are run on the systems, the power gap between the two platforms steadily decreases as the load increases. Under very high load conditions, the Xeon-based systems were able to pull ahead in a few benchmarks.<br><br>

On my reading of these results, what's happening seems to be pretty straightforward. It all comes down to the fact that Intel uses FB-DIMMs and the Opteron uses vanilla DDR2. Simply put, the FB-DIMMs are much less able to naturally scale their power consumption to fit the bandwidth needs of a given workload. So the higher bandwidth, greater capacity per pin-out, and RAS capabilities that FB-DIMMs offer come at the price of higher power consumption and reduced power efficiency when the system is under less than a full load.

http://arstechnica.com/news.ars/post...rver-room.html
__________________
jmke is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Intel Sues AMD For Not Keeping Documents jmke WebNews 0 15th October 2009 20:44
Server roundup: Intel "Nehalem" Xeon versus AMD "Shanghai" Opteron jmke WebNews 0 4th May 2009 16:52
AMD Beats Intel in 45nm Low Power Server Test jmke WebNews 0 20th March 2009 21:13
AMD Introduces ‘AMD Business Class’, Designed With Business in Mind jmke WebNews 0 28th April 2008 09:33
AMD Launches World’s First x86 Triple-Core Processors jmke WebNews 0 27th March 2008 15:16
AMD, Intel way behind IBM on power tower front Sidney WebNews 1 28th October 2005 22:29
AMD Cranks Up Speed of Low Power AMD Opteron Chips jmke WebNews 0 23rd March 2005 11:29
Tweedle AMD and Tweedle Intel dum ready server battle Sidney WebNews 0 12th February 2005 19:14
AMD defeats Intel in US Supreme Court jmke WebNews 1 22nd June 2004 17:59
Intel is Heading Towards Dual-Core Desktop, Mobile, Server Processors jmke WebNews 0 2nd March 2004 12:10

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


All times are GMT +1. The time now is 17:38.


Powered by vBulletin® - Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO