SureTrader
Interactive Brokers Advertisement
SureTrader
Home > Boards > US Listed > Computers - Semiconductors > Intel (INTC)

The core power cost of x86 over RISC

Public Reply | Private Reply | Keep | Last ReadPost New MsgReplies (1) | Next 10 | Previous | Next
chipguy Member Profile
 
Followed By 22
Posts 15,053
Boards Moderated 0
Alias Born 03/17/03
160x600 placeholder
Annual Report of Employee Stock Plans (11-k) "Edgar (US Regulatory)" - 6/22/2017 4:58:49 PM
Intel Extends Cash Tender Offer for All Outstanding Shares of Mobileye "Business Wire" - 6/22/2017 8:30:00 AM
IOC and Intel Announce Worldwide TOP Partnership Through 2024 "Business Wire" - 6/21/2017 10:00:00 AM
AMD Launches Fight Against Intel in Lucrative Server-Chip Market "Dow Jones News" - 6/20/2017 4:29:00 PM
Google Faces EU Antitrust Fine -- WSJ "Dow Jones News" - 6/17/2017 3:02:00 AM
Current Report Filing (8-k) "Edgar (US Regulatory)" - 6/16/2017 5:20:28 PM
Intel's 2.95 Percent Junior Subordinated Convertible Debentures Due 2035 to Pay Contingent Interest of $4 Million "Business Wire" - 6/16/2017 4:30:00 PM
Current Report Filing (8-k) "Edgar (US Regulatory)" - 6/16/2017 4:03:16 PM
U.S. Invests $258 Million in Supercomputing Race With China "Dow Jones News" - 6/15/2017 2:29:00 PM
Prospectus Filed Pursuant to Rule 424(b)(5) (424b5) "Edgar (US Regulatory)" - 6/15/2017 6:08:48 AM
Intel Announces Approval Under Israel Restrictive Trade Practices Law for Proposed Acquisition of Mobileye "Business Wire" - 6/14/2017 4:30:00 PM
Free Writing Prospectus - Filing Under Securities Act Rules 163/433 (fwp) "Edgar (US Regulatory)" - 6/13/2017 4:58:53 PM
Intel Showcases Extraordinary PC Gaming and VR Experiences at E3; Announces $1 Million Intel Grand Slam for Esports "Business Wire" - 6/12/2017 12:45:00 PM
Intel Announces Expiration of HSR Waiting Period For Proposed Acquisition of Mobileye "Business Wire" - 6/12/2017 9:00:00 AM
Statement of Changes in Beneficial Ownership (4) "Edgar (US Regulatory)" - 6/7/2017 4:53:27 PM
Wind River Teaming with Nation's Largest Transportation Proving Grounds, Ohio State University, and Central Ohio Region to De... "PR Newswire (US)" - 6/7/2017 6:03:00 AM
Intel Predicts Autonomous Driving Will Spur New ‘Passenger Economy’ Worth US$7 Trillion "Business Wire" - 6/1/2017 1:00:00 PM
Intel Delivers Virtual Reality Experiences to Fans in 3-Year Partnership With Major League Baseball "Business Wire" - 6/1/2017 8:00:00 AM
Intel Promotes Three Corporate Officers "Business Wire" - 5/30/2017 11:00:00 AM
Current Report Filing (8-k) "Edgar (US Regulatory)" - 5/24/2017 4:11:39 PM
18-Year-Old Engineer Constructs Fuel-Efficient, Stable “Flying Wing” Aircraft Prototype "Business Wire" - 5/19/2017 3:11:00 PM
Specialized Disclosure Report (sd) "Edgar (US Regulatory)" - 5/18/2017 9:02:17 AM
BMW Group, Intel & Mobileye Announce Delphi as a Development Partner & System Integrator for their Autonomous Driving Platform "Business Wire" - 5/16/2017 7:00:00 AM
Media Alert: World’s Brightest Young Innovators Take Center Stage at the Intel International Science and Engineering Fair "Business Wire" - 5/15/2017 11:00:00 AM
Samsung, Intel Back U.S. Regulator's Suit Against Qualcomm "Dow Jones News" - 5/12/2017 9:44:00 PM
chipguy   Wednesday, 05/18/11 01:34:24 AM
Re: DavidA2 post# 101614
Post # of 148937 
The core power cost of x86 over RISC depends on issue width,
pipeline depth, and in-order vs OOOE. The front end decoder
complexity goes up with the square of issue width for x86 vs
roughly linear for RISC. OOOE is also more complex for x86
than RISC. For something like C2D/Nehalem/SB x86 probably
adds 25-30% in power over an equivalent RISC. For something
like Atom it probably adds 15-20% in power over an equivalent
RISC.

Now keep in mind for a 1W phone SoC the CPU core accounts
for 300-400 mW. So x86 adds 45 - 80 mW in full active power
when EVERYTHING ELSE IS EQUAL. Please note the qualifier.
It is generally not true. In fact it is so not true that despite all
its baggage x86 accounts for over 90 cents out of every dollar
spent in the world on microprocessors of all size, description,
and use.


SureTrader
Public Reply | Private Reply | Keep | Last ReadPost New MsgReplies (1) | Next 10 | Previous | Next
Follow Board Follow Board Keyboard Shortcuts Report TOS Violation
X
Current Price
Change
Volume
Detailed Quote - Discussion Board
Intraday Chart
+/- to Watchlist