Sign in with
Sign up | Sign in

AMD's Jaguar to Support AVX

By - Source: Planet3DNow | B 10 comments

A note posted by an AMD developer suggests that the Kabini processor, a 28 nm mobile chip that will integrate the Jaguar processing core, will support Intel's AVX instruction set, as well bit-manipulation instructions (BMI).

The quote:

"We are expecting some changes to tunings and costs. We will update them in near future. There are ISA changes as well like btver2 supports AVX, BMI."

It was recently reported that AMD scrapped SSE5 in favor of AVX, which is likely to also introduce SSE4 in Jaguar. Jaguar's predecessor Bobcat only supports SSE3.

Kabini is expected to be released in 2013 as a low-price and low-power mobile processor with up to four cores and a power envelope spanning 9 to 25 watts. The program of the upcoming Hot Chips 24 conference in Cupertino indicates that AMD will be revealing more information about Jaguar at the end of August.


Contact Us for News Tips, Corrections and Feedback

Discuss
Ask a Category Expert

Create a new thread in the News comments forum about this subject

Example: Notebook, Android, SSD hard drive

This thread is closed for comments
  • 4 Hide
    silverblue , July 24, 2012 5:09 PM
    AVX is interesting in its own right, but BMI? As Bobcat had the same instruction set support as K10, I'd have thought it already supported POPCNT and LZCNT as well as SSE4a.

    Supporting SSE4.1 and 4.2 is a good move, but will it make for a far more complex core?
  • 2 Hide
    BulkZerker , July 24, 2012 5:38 PM
    In b4 "Not as fast as my core i7 with 16 gigs of ram and a $700 Nvidia that self destructs with the odd numbered beta drivers" comments.

    And yet another reason to hold off on purchasing another laptop... again.
  • 3 Hide
    opmopadop , July 24, 2012 9:04 PM
    silverblue POPCNT and LZCNT

    Oh man, I havn't thought of Assembler in decades. Thanks for reminding an old programmer about the good times. Now to read up on the SSE4.1 ops for an asm fix.
  • Display all 10 comments.
  • 3 Hide
    danwat1234 , July 24, 2012 9:21 PM
    chromonoidi hope this chip turns out to be good and not like bulldozer

    Jaguar is a low powered x86 CPU or APU for tablets.
  • 2 Hide
    Shin-san , July 24, 2012 10:42 PM
    I wonder how many programs use it
  • 1 Hide
    blazorthon , July 25, 2012 12:43 AM
    silverblueAVX is interesting in its own right, but BMI? As Bobcat had the same instruction set support as K10, I'd have thought it already supported POPCNT and LZCNT as well as SSE4a.Supporting SSE4.1 and 4.2 is a good move, but will it make for a far more complex core?


    Trinity already supports SSE 4.1, SSE 4.2, SSSE3, and probably AVX, but I don't know if it supports BMI. Excluding BMI, I also know that Bulldozer supports all of these and that it might support BMI. I'd have to look up BMI support to know that one for sure.
  • 1 Hide
    blazorthon , July 25, 2012 1:42 AM
    otacon72low-price and low-power and low performance mobile processor


    It's not like there is such thing as a high performance, very low power and low price CPU, especially in mobile markets.
  • 2 Hide
    silverblue , July 25, 2012 7:03 AM
    blazorthonTrinity already supports SSE 4.1, SSE 4.2, SSSE3, and probably AVX, but I don't know if it supports BMI. Excluding BMI, I also know that Bulldozer supports all of these and that it might support BMI. I'd have to look up BMI support to know that one for sure.

    Bulldozer supports SSE4a so I'm very much interested in what these BMI instructions are; I can't find any reference to an instruction set. If AMD indeed have worked on one, it'd make a lot of sense to implement it into the Bulldozer design especially if they're sticking with starving their cores for work.
  • 1 Hide
    Wisecracker , July 25, 2012 1:04 PM

    *Temesh* looks very interesting, too ...

  • 1 Hide
    ashinms , July 25, 2012 4:18 PM
    I've heard speculation of a modular architecture, too. Xbit labs listed their reasons for believing this on their article. Reason being is that AVX requires two 128 bit or one 256 bit FPU. Bulldozer accomplishes AVX through one 256 bit "flex" FPU that is really more like two glued together. It's hard to imagine a mobile processor with a massive 256 bit FPU, but if two cores with one 128 bit each worked together at a modular level, the thinking goes, this could be accomplished much easier and with fewer transistors. Also, modifications have been made to allow addressing of upwards of 2MB of L2 cache, much higher than bobcat. This could point to a shared L2 cache, like in bulldozer.