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

 
Go Back [M] > Madshrimps > WebNews
IBM highlights Power chip power savings IBM highlights Power chip power savings
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read


IBM highlights Power chip power savings
Reply
 
Thread Tools
Old 26th October 2005, 16:36   #1
[M] Reviewer
 
Sidney's Avatar
 
Join Date: Mar 2004
Posts: 15,739
Sidney Freshly Registered
Default IBM highlights Power chip power savings

The 2.5GHz chip is used in Apple Computer's latest Power Mac G5 Quad machines now and will be incorporated into IBM's blade servers in the first quarter of 2006.

Power consumption, whether in desktop, mobile or server computers, is a growing concern. Indeed, Intel highlighted performance per watt as the prime new feature of a next-generation chip architecture.

The PowerPC 970MP reduces its power consumption in a number of ways, Norman Rohrer, IBM distinguished engineer, said in a speech at the Fall Processor Forum here.

One major feature is that one core can shut down if it's not needed, Rohrer said. "You can cut the power roughly in half by shutting off one of the cores," he said.

The chip also can cut its frequency by half or a quarter. Peak power consumption of 100 watts drops to about 60 watts and 40 watts with those moves, he said.

Previous Next In addition, the chip can run in a low-voltage mode that further cuts power. And in a "deep nap" mode, it can cut its frequency to one sixty-fourth of the regular speed. With both cores active but deeply napping, the processor consumes 5 watts; with one, it's 3 watts.

The dual-core PowerPC 970MP is something of a return to an earlier era for IBM. Its predecessors, the PowerPC 970 and 970FX, are single-core chips, but they're based on the IBM Power4, which became the first dual-core server processor when it made its 2001 debut.

Each core of the PowerPC 970MP has its own 1MB section of high-speed cache memory. Having separate caches allows the computer to shut down one cache along with the processor core if it's not needed, Rohrer said. The 1MB cache also gives a performance boost compared with the 512KB cache used in the PowerPC 970FX.

http://news.com.com/IBM+highlights+P...l?tag=nefd.top
__________________
lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II
Sidney is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Samsung to Release Low Power 4Gb DDR3 Memory Chip jmke WebNews 0 2nd February 2009 14:08
New Playstation 3 80Gb has 65nm GPU >> Power Savings! jmke WebNews 0 24th August 2008 12:37
IBM Overclocks chip to 500Ghz at -269C jmke WebNews 1 20th June 2006 16:28
AMD, Intel way behind IBM on power tower front Sidney WebNews 1 28th October 2005 22:29
IBM to use more AMD chip as Fab 36 starts Sidney WebNews 0 14th October 2005 17:33
IBM, Sony, Toshiba push Cell chip beyond games Sidney WebNews 0 25th August 2005 17:13
IBM Reveals New Low-Power Chip. IBMs PowerPC 970FX for Mobiles Releases jmke WebNews 0 11th July 2005 18:14
IBM introduces dual-core PowerPC 970 chip Sidney WebNews 2 9th July 2005 08:23
IBM Introduces New Chip Design Verification Software Sidney WebNews 0 9th June 2004 22:03

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 05:29.


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