Close
  • Latest News
  • Artificial Intelligence
  • Video
  • Big Data and Analytics
  • Cloud
  • Networking
  • Cybersecurity
  • Applications
  • IT Management
  • Storage
  • Sponsored
  • Mobile
  • Small Business
  • Development
  • Database
  • Servers
  • Android
  • Apple
  • Innovation
  • Blogs
  • PC Hardware
  • Reviews
  • Search Engines
  • Virtualization
Read Down
Sign in
Close
Welcome!Log into your account
Forgot your password?
Read Down
Password recovery
Recover your password
Close
Search
Logo
Logo
  • Latest News
  • Artificial Intelligence
  • Video
  • Big Data and Analytics
  • Cloud
  • Networking
  • Cybersecurity
  • Applications
  • IT Management
  • Storage
  • Sponsored
  • Mobile
  • Small Business
  • Development
  • Database
  • Servers
  • Android
  • Apple
  • Innovation
  • Blogs
  • PC Hardware
  • Reviews
  • Search Engines
  • Virtualization
More
    Home Latest News
    • PC Hardware

    AMD Talks Energy Efficiency, Performance With Carrizo Chip

    Written by

    Jeff Burt
    Published February 24, 2015
    Share
    Facebook
    Twitter
    Linkedin

      eWEEK content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.

      Advanced Micro Devices officials several months ago announced the company’s forthcoming “Carrizo” processors for notebooks and low-power desktops in an effort to regain momentum in a PC chip market dominated by larger rival Intel.

      The officials have since boasted about the significant power savings of the processors, along with longer battery life and improvements in performance due to new compute cores and graphics technologies.

      On Feb. 23, during a presentation at the International Solid-State Circuits Conference (ISSCC) in San Francisco, AMD engineers offered up more details about the chips, saying Carrizo offers the greatest performance-per-watt gains in the company’s mainstream accelerated processing units (APUs).

      “We’ve come up with a very competitive product from a performance and battery life perspective … with a very efficient design,” AMD Corporate Fellow Sam Naffziger told eWEEK.

      The chips will be fully compliant with the Heterogeneous System Architecture (HSA) 1.0—which makes it easier to move workloads between the CPU and GPU. Enhanced energy management technologies are helping to drive down power consumption, said Naffziger, who gave the presentation on Carrizo.

      Carrizo is the last of the chips based on the Bulldozer architecture and introduces the “Excavator” x86 CPU cores and the latest generation of AMD’s Radeon Graphics Cores Next (GCN) architecture. Using a system-on-a-chip (SoC) design, Naffziger said he expects Carrizo’s x86 cores—through a 5 percent increase in instructions-per-clock on a size 23 percent smaller than on the current Kaveri APUs—to drive down power consumption by 40 percent over Kaveri. In addition, the eight Radeon cores consume 20 percent less power than those on Kaveri.

      At the conference, the AMD engineer disclosed that the 28-nanometer Carrizo will offer 29 percent more transistors—3.1 billion—on a die size almost the same as Kaveri’s. The new Radeon GPU cores come with dedicated power supplies and will offer double- digit percentage increases in both performance and battery life, he said. The new chip, which will begin appearing in systems later this year, also supports H.265 video decoding.

      Carrizo will be an important chip for AMD, according to Patrick Moorhead, principal analyst with Moor Insights and Strategy. “Carrizo is the chance to win back 3, 4, 5 percent of market share not only with an improved core, but also with significant improvements in graphics and significant improvements in performance-per-watt,” Moorhead told eWEEK. “It’s huge for AMD, which has been in a little bit of a market-share free fall.”

      He noted the full HSA capabilities hold the potential to enable AMD to differentiate itself in the market by enabling systems powered by Carrizo to run difficult workloads well. Software will be able to do a lot with the GPU that it couldn’t do before, Moorhead said. The challenge for AMD will be whether operating systems will be able to take advantage of a fully-compliance HSA processor.

      “There’s a lot of potential, but there’s also a lot of unknowns,” he said.

      On the architectural side, the greater transistor density on a die almost the equal of Kaveri means greater real estate for graphics and multimedia on a single chip. It also allows for the integration of the Southbridge on the chip as well.

      The power efficiency gains come from several new technologies, including some to optimize voltage. One brings what AMD calls voltage adaptive operation functions to both the CPU and GPU. The technology makes frequency adjustments a the nanosecond level, which preserves the compute performance but cuts power consumption by up to 10 percent in the GPU and 19 percent in the CPU.

      AMD also is leveraging adaptive voltage and frequency scaling (AVFS), which enables APUs to adapt in real time to their own silicon characteristics, platform behavior and operating environment, which can result in power savings of up to 30 percent. In addition, the tuning of the GPU for optimal power efficiency leads to the 20 percent power reduction over the Kaveri GPUs.

      Carrizo and the new technologies in the chips also represent another step forward in AMD’s ambitious effort to improve the energy efficiency of its APUs 25-fold by 2020. The company announced the initiative last year.

      “We don’t know how we’re going to get there for sure,” AMD’s Naffziger said. “With Carrizo, we pulled a lot of knobs, so we’re getting there.”

      Jeff Burt
      Jeff Burt
      Jeffrey Burt has been with eWEEK since 2000, covering an array of areas that includes servers, networking, PCs, processors, converged infrastructure, unified communications and the Internet of things.

      Get the Free Newsletter!

      Subscribe to Daily Tech Insider for top news, trends & analysis

      Get the Free Newsletter!

      Subscribe to Daily Tech Insider for top news, trends & analysis

      MOST POPULAR ARTICLES

      Artificial Intelligence

      9 Best AI 3D Generators You Need...

      Sam Rinko - June 25, 2024 0
      AI 3D Generators are powerful tools for many different industries. Discover the best AI 3D Generators, and learn which is best for your specific use case.
      Read more
      Cloud

      RingCentral Expands Its Collaboration Platform

      Zeus Kerravala - November 22, 2023 0
      RingCentral adds AI-enabled contact center and hybrid event products to its suite of collaboration services.
      Read more
      Artificial Intelligence

      8 Best AI Data Analytics Software &...

      Aminu Abdullahi - January 18, 2024 0
      Learn the top AI data analytics software to use. Compare AI data analytics solutions & features to make the best choice for your business.
      Read more
      Latest News

      Zeus Kerravala on Networking: Multicloud, 5G, and...

      James Maguire - December 16, 2022 0
      I spoke with Zeus Kerravala, industry analyst at ZK Research, about the rapid changes in enterprise networking, as tech advances and digital transformation prompt...
      Read more
      Video

      Datadog President Amit Agarwal on Trends in...

      James Maguire - November 11, 2022 0
      I spoke with Amit Agarwal, President of Datadog, about infrastructure observability, from current trends to key challenges to the future of this rapidly growing...
      Read more
      Logo

      eWeek has the latest technology news and analysis, buying guides, and product reviews for IT professionals and technology buyers. The site’s focus is on innovative solutions and covering in-depth technical content. eWeek stays on the cutting edge of technology news and IT trends through interviews and expert analysis. Gain insight from top innovators and thought leaders in the fields of IT, business, enterprise software, startups, and more.

      Facebook
      Linkedin
      RSS
      Twitter
      Youtube

      Advertisers

      Advertise with TechnologyAdvice on eWeek and our other IT-focused platforms.

      Advertise with Us

      Menu

      • About eWeek
      • Subscribe to our Newsletter
      • Latest News

      Our Brands

      • Privacy Policy
      • Terms
      • About
      • Contact
      • Advertise
      • Sitemap
      • California – Do Not Sell My Information

      Property of TechnologyAdvice.
      © 2024 TechnologyAdvice. All Rights Reserved

      Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.

      ×