The Future of Larrabee: The Many Core Era

I keep going back to this slide because it really tells us where Intel sees its architectures going:

Today we're in the era of the multi-core array. Next year, Nehalem will bring us 8-cores on a single chip and it's conceivable that we'll see 10 and 12 core versions in the two years following it. Larrabee isn't actually on this chart, it remains separate until we hit the heterogeneous multi-threaded cores (the last two items on the evolutionary path).

It looks like future Intel desktop chips will be a mixture of these large Nehalem-like cores surrounded by tons of little Larrabee-like cores. Your future CPUs will be capable of handling whatever is thrown at them, whether that is traditional single-threaded desktop applications, 3D games, physics or other highly parallelizable workloads. It also paints an interesting picture of the future - with proper OS support, all you'd need for a gaming system would be a single Larrabee, you wouldn't need a traditional x86 CPU.

This future is a long time from now, but just as Pentium M eventually evolved into the future of desktop microprocessors from Intel today, keep an eye on Larrabee, because in 5 years it could be behind what you're running everything on.

Changing the Way GPUs Are Launched?

Here's an interesting thought. By the time Larrabee rolls out in 2009/2010, Intel's 45nm process will have been able to reach maturity. It's very possible that Intel could launch Larrabee much like it does its CPUs, with many SKUs covering a broad range of market segments. Intel could decide to launch $199 all the way up to $999 Larrabee parts, instead of the more traditional single GPU launch (perhaps with two SKUs) and waiting months before the technology trickles down to the mainstream.

Intel could take the GPU industry by storm and get Larrabee out into the wild quicker if it launched top to bottom, akin to how its CPU introductions work.

Shading Tiles with Larrabee (With Extra Goodies) Things That Could Go Wrong
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  • erikespo - Monday, August 04, 2008 - link

    another way to look as it is how man 143mm^2 squares does it take to make up 286mm^2?

    only 2 would only be 143mm x 286mm

    since 10 cores fit into 143 x 143, 20 will fit into 143 x 286mm
    286 x 286 (which is double that of 143 x 286mm) the 286mm^2 would fit 40
    Reply
  • erikespo - Monday, August 04, 2008 - link

    http://en.wikipedia.org/wiki/Square_%28geometry%29">http://en.wikipedia.org/wiki/Square_%28geometry%29

    helpful page to take you back to first grade

    and excuse my decimal point.. it is 204.49mm total per core or 14.3mm^2
    Reply
  • erikespo - Monday, August 04, 2008 - link

    Explain.

    lets use smaller numbers for you 2mm^2 is 2mm by 2 mm or 4 total mm

    double that and it is 4mm^2 or 4 mm by 4 mm or 16mm total..

    we are talking about area or 2 dimensions not 1 dimension.

    Same math applies to the article
    Reply
  • MamiyaOtaru - Monday, August 04, 2008 - link

    No, you're way off. 2mm² is TWO square millimeters. (a rectangle 1x2 for example). Double that would be 4mm², which could either be 1x4 or 2x2.

    NUMBERmm² doesn't mean NUMBERxNUMBER mm, it means exactly what it says: NUMBER mm².

    Using your smaller numbers: 2mm² is not "4 total mm"; it is TWO mm². Saying it is 4 total mm doesn't even make sense. You _can't_ measure area in millimeters. You measure it in square millimeters, and there are two of them (_2_mm²).

    Here's an mspaint visual (if links work: http://img105.imageshack.us/my.php?image=squaremma...">http://img105.imageshack.us/my.php?image=squaremma...

    You're so sure you're right on this, it's really depressing :(
    Reply
  • darkequitus - Monday, August 04, 2008 - link

    I did not appriciate the writer creaming over every digital page they wrote. especially when Larrabee's performance is mainl at the moment based on INtel hype and nothing real. Reply
  • ZootyGray - Monday, August 04, 2008 - link

    THANK YOU.

    Somebody finally said it.

    The others prefer Eutopian illusion - aka the curse aka ntel antitrust. ntel has no grafx and the fools in the public buy "inside' and nvid and ati aren't exactly friends of the curse.

    welcome to the matrix. wakey wakey
    Reply
  • ZootyGray - Monday, August 04, 2008 - link

    and a 16 pager on maybe might could be should be = wannabe "employ-boy"
    - payday ? hooyeh. This is so disappointing for me. Credibility sags to a new low.
    Reply
  • strikeback03 - Tuesday, August 05, 2008 - link

    Someone whose two posts contain about 10 complete words and no complete thoughts says Anandtech's credibility has sagged to a new low? Reply
  • ZootyGray - Tuesday, August 05, 2008 - link

    haha yeh - lots of room for thinking.
    or - if no thinkeez - ya gots der 16 pg inundation (that's a big word like marmalade) all based on nothing-is-real - you like that kind of brainwash? we don't know anything; but here's the tekspex?
    btw - did u get it? the matrix idea? watch the movie. cos here it is. pardon my loaded cryptic literacy.
    thx
    if you don't get it - well, that's what they want - a world of sleeping mob. never mind, that's just my concern.

    Reply
  • The Preacher - Monday, August 04, 2008 - link

    I don't really care about how good it will be executing some software renderer but I feel it is going to kick ass in scientific calculations. Matrix operations, FFT/convolution, tremendous bandwidth, double precission... I may write C++/x86 assembly code directly for it and I may put this into a rack of servers and use it through MPI. Give me a compiler with vector intrinsic functions for it and my dreams just came true! :) Reply

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