SSE5 has a great chance to succeed.

By: Hannes (heGummibaer.delete@this.googlemail.com), June 24, 2008 8:49 am
Room: Moderated Discussions
In http://softwarecommunity.intel.com/i...e-31943302.pdf I found:

• Intel® Advanced Vector Extensions (AVX) introduces 256-bit vector processing
capability and includes two components to be introduced on Intel processor
generations built from 32nm process and beyond:
— The first generation Intel AVX provides 256-bit SIMD register support, 256-
bit vector floating-point instructions, enhancements to 128-bit SIMD instructions,
support for three and four operand syntax.
— FMA is a future extension of Intel AVX, FMA provides floating-point, fused
multiply-add instructions supporting 256-bit and 128-bit SIMD vectors.

So if FMA is not supported by the first generation AVX doesn't that mean it will not be included in Sandy Bridge? Should that be the case SSE5 could still have a chance even though it will first be available in 2010 with bulldozer, since AVX-FMA will come even later, sometime in late 2010 with the successor of Sandy Bridge.
By then both, AMD and Intel, will have GPUs integrated into their quad core CPUs(I am not sure if it were quad cores or just dual cores in late 2010).
With integrated GPUs the advantage AVX has over SSE5 might not be that important anymore since even low-end GPUs have advanced and powerful vector execution units.
For Desktop PCs the integrated GPU should offer enough power for things like WinRAR or video- and image-processing. Of course this is not true for HPC.

If I am right and AVX-FMA only comes in late 2010, SSE5 is not that much worse than AVX in 2010. And as already pointed out by someone else AMD will want to push their integrated CPU-GPU-products, so it makes no sense for them to have an equally powerful vector execution unit in their CPUs.*

This is only my opinion and maybe I missed something and FMA will be available in Sandy Bridge.

*I expect AMD's integrated GPUs to be better than Intel's, but that is only speculation.
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TopicPosted ByDate
Intel AVX kills AMD SSE5Agner2008/06/17 08:14 AM
  Intel AVX kills AMD SSE5a reader2008/06/17 09:03 AM
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    Bulldozer?EduardoS2008/06/19 06:11 PM
    Bulldozer?Max2008/06/19 06:16 PM
      Bulldozer?Goose2008/06/21 02:23 AM
        Bulldozer?David Kanter2008/06/21 07:37 AM
          Bulldozer?someone2008/06/21 07:55 AM
            Bulldozer?David Kanter2008/06/21 08:07 AM
              Bulldozer?S. Rao2008/06/21 11:08 AM
                RegfilesPeter2008/06/21 11:49 AM
                Bulldozer?Linus Torvalds2008/06/21 12:23 PM
                  Bulldozer?S. Rao2008/06/21 04:50 PM
                  unified physical register file nullifies x86 advantageMichael S2008/06/22 12:24 AM
                    unified physical register file nullifies x86 advantageDavid Kanter2008/06/22 09:35 AM
                      unified physical register file nullifies x86 advantagehobold2008/06/22 01:03 PM
                    Reg file vs. forwarding networkDavid Kanter2008/06/22 10:36 AM
                      Reg file vs. forwarding networkhobold2008/06/22 12:39 PM
                        Reg file vs. forwarding networkPeter2008/06/22 02:48 PM
                          Reg file vs. forwarding networkDavid Kanter2008/06/22 08:54 PM
                            Reg file vs. forwarding networkPeter2008/06/23 03:44 AM
                              Reg file vs. forwarding networksavantu2008/06/23 04:41 AM
                                Reg file vs. forwarding networkPeter2008/06/23 07:35 AM
                        Reg file vs. forwarding networkAnders Jensen2008/06/23 11:05 AM
                        Reg file vs. forwarding networkleft nutz2008/06/27 07:31 AM
  Intel AVX kills AMD SSE5nobat2008/06/21 11:23 AM
    Intel AVX kills AMD SSE5Agner2008/06/21 10:01 PM
      So...Dean Kent2008/06/22 07:35 AM
  SSE5 has a great chance to succeed.mpx2008/06/22 12:25 AM
    SSE5 has a great chance to succeed.Michael S2008/06/22 01:42 AM
      SSE5 has a great chance for fiascoAgner2008/06/22 03:32 AM
        SSE5 has a great chance for fiascoIan Ameline2008/06/22 08:37 AM
        SSE5 has a great chance for fiascoanonymous2008/06/22 09:02 AM
          SSE5 has a great chance for fiascohobold2008/06/22 12:59 PM
            SSE5 has a great chance for fiascoHoward Chu2008/06/22 04:38 PM
      SSE5 has a great chance to succeed.hobold2008/06/22 12:52 PM
        SSE5 has a great chance to succeed.Michael S2008/06/22 01:46 PM
          SSE5 has a great chance to succeed.Hannes2008/06/24 08:49 AM
            SSE5 has a great chance to succeed.anonymous2008/06/24 10:46 AM
          SSE5 has a great chance to succeed.Ian Ollmann2008/06/24 10:12 PM
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