Ivy Bridge GPU article

Article: Intel's Ivy Bridge Graphics Architecture
By: David Kanter (dkanter.delete@this.realworldtech.com), April 25, 2012 11:15 am
Room: Moderated Discussions
kalelovil (kalelovil@gmail.com) on 4/25/12 wrote:
---------------------------
>Arcadian (no@thanks.com) on 4/24/12 wrote:
>---------------------------
>>Exophase (exophase@gmail.com) on 4/23/12 wrote:
>>---------------------------
>>>One comment: you say that Intel's goal was a 2X performance increase over Gen 6.
>>>But every preview so far has shown HD 4000 performance to be substantially beneath
>>>this, closer to 20-60% typically.
>>
>>In compute-bound workloads like 3DMark Vantage, performance improvement is very
>>close to 2x. That said, many workloads are not fully compute bound. Memory bandwidth
>>in Ivy Bridge only increased 20% over Sandy Bridge.
>>
>>Likewise, the performance has been shown to still
>>>consistently lag high end Llano. I assumed that your comment about it being the
>>>highest performance IGP at launch meant that it outperforms Llano. Your estimate
>>>of Llano beating HD3000 by 30 to 100% seems conservative, reviews seem to show
>>it routinely pushing past the 100% point.
>>
>>Relative performance is going to change depending on whether you are comparing mobile or desktop systems.
>>
>>Mobile: HD 4000 @ 1.25GHz vs. Llano @ 443MHz
>>Desktop: HD 4000 @ 1.15GHz vs. Llano @ 600MHz
>>
>>It should be unsurprising that Llano will fare better on desktop configs, but if
>>you look at the mobile reviews, HD 4000 ranged from on par with Llano (in the Anandtech
>>review) to 15% ahead of Llano (in the Notebookcheck review).
>>
>>(Speaking for myself)
>
>The Anandtech review wasn't entirely balanced however.

Shocking!

>They compared an US$378 Intel APU with a much cheaper AMD >APU with a lot less CPU
>grunt.

The term APU is a meaningless marketing term from AMD. I think it's more useful to characterize these as SoCs.

Also, I'm not sure whether pricing is relevant. I doubt AMD has any client processors that are that expensive, simply because the performance is so poor.

I'd say that perhaps comparing at similar TDPs is more important, but you need to compare top-end models to top-end models.

>The AMD notebook they used also has a lower memory frequency (1333mhz vs.
>1600mhz) and an odd memory configuration (2GB + 4GB, >although modern memory controllers
>shouldn't have any issues with that).

Those are all good points. Also, coming from Anandtech, there is really no excuse for such things.

Many sites have difficulty obtaining sample products from AMD. However, Anandtech is not one of them. AMD has refused to sample server parts to nearly every reviewer, except for Anandtech. So getting a modern Llano system with 1.6GT/s memory cannot be that hard (unless they want a system using DDR3-L, which is limited to 1.33GT/s). Moreover, they could easily go out and purchase a notebook for comparison...the site makes plenty of money.

David
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
Ivy Bridge GPU articleDavid Kanter04/23/12 08:27 AM
  Ivy Bridge GPU articleExophase04/23/12 09:08 AM
    Ivy Bridge GPU articleltcommander.data04/23/12 05:42 PM
    Ivy Bridge GPU articleArcadian04/24/12 09:03 PM
      Ivy Bridge GPU articlekalelovil04/25/12 07:37 AM
        Ivy Bridge GPU articleDavid Kanter04/25/12 11:15 AM
          Ivy Bridge GPU articleArcadian04/25/12 02:34 PM
          Ivy Bridge GPU articlemik04/25/12 03:38 PM
            Ivy Bridge GPU articlekalelovil04/25/12 06:41 PM
              Ivy Bridge GPU articleDavid Kanter04/25/12 07:42 PM
                Ivy Bridge GPU articlekalelovil04/26/12 01:05 AM
                  Ivy Bridge GPU articleDavid Kanter04/26/12 02:19 AM
                    Ivy Bridge GPU articlekalelovil04/26/12 04:19 AM
                      Ivy Bridge GPU articleDavid Kanter04/26/12 07:51 AM
                        OfftopicEduardoS04/26/12 03:37 PM
                          OfftopicKonrad Schwarz04/27/12 03:23 AM
                            Offtopicnone04/27/12 04:05 AM
                              Cortex-M4 has some DSP, I think (NT)Paul A. Clayton04/27/12 09:53 AM
                          OfftopicAnon04/28/12 02:28 PM
                  Ivy Bridge GPU articleFoo_04/26/12 04:02 AM
                    Ivy Bridge GPU articlekalelovil04/26/12 04:14 AM
                  Ivy Bridge GPU articlemik04/26/12 04:53 AM
                    Ivy Bridge GPU articlekalelovil04/26/12 06:22 AM
                      Ivy Bridge GPU articleArcadian04/26/12 07:06 AM
                      Ivy Bridge GPU articlemik04/26/12 03:52 PM
  Ivy Bridge GPU articleegan04/23/12 10:50 AM
    Ivy Bridge GPU articleAnon04/24/12 02:03 AM
      Ivy Bridge GPU articleegan04/24/12 04:19 AM
        Didn't you hear about "wheel of reincarnation"? (NT)Michael S04/24/12 08:04 AM
        Ivy Bridge GPU articleanon04/24/12 06:31 PM
  Ivy Bridge GPU articleltcommander.data04/23/12 06:44 PM
  Ivy Bridge GPU articlebakaneko04/24/12 04:24 AM
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