By: kalelovil (kalelovil.delete@this.gmail.com), April 25, 2012 7:37 am
Room: Moderated Discussions
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.
They compared an US$378 Intel APU with a much cheaper AMD APU with a lot less CPU grunt. 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).
---------------------------
>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.
They compared an US$378 Intel APU with a much cheaper AMD APU with a lot less CPU grunt. 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).
| Topic | Posted By | Date |
|---|---|---|
| Ivy Bridge GPU article | David Kanter | 04/23/12 08:27 AM |
| Ivy Bridge GPU article | Exophase | 04/23/12 09:08 AM |
| Ivy Bridge GPU article | ltcommander.data | 04/23/12 05:42 PM |
| Ivy Bridge GPU article | Arcadian | 04/24/12 09:03 PM |
| Ivy Bridge GPU article | kalelovil | 04/25/12 07:37 AM |
| Ivy Bridge GPU article | David Kanter | 04/25/12 11:15 AM |
| Ivy Bridge GPU article | Arcadian | 04/25/12 02:34 PM |
| Ivy Bridge GPU article | mik | 04/25/12 03:38 PM |
| Ivy Bridge GPU article | kalelovil | 04/25/12 06:41 PM |
| Ivy Bridge GPU article | David Kanter | 04/25/12 07:42 PM |
| Ivy Bridge GPU article | kalelovil | 04/26/12 01:05 AM |
| Ivy Bridge GPU article | David Kanter | 04/26/12 02:19 AM |
| Ivy Bridge GPU article | kalelovil | 04/26/12 04:19 AM |
| Ivy Bridge GPU article | David Kanter | 04/26/12 07:51 AM |
| Offtopic | EduardoS | 04/26/12 03:37 PM |
| Offtopic | Konrad Schwarz | 04/27/12 03:23 AM |
| Offtopic | none | 04/27/12 04:05 AM |
| Cortex-M4 has some DSP, I think (NT) | Paul A. Clayton | 04/27/12 09:53 AM |
| Offtopic | Anon | 04/28/12 02:28 PM |
| Ivy Bridge GPU article | Foo_ | 04/26/12 04:02 AM |
| Ivy Bridge GPU article | kalelovil | 04/26/12 04:14 AM |
| Ivy Bridge GPU article | mik | 04/26/12 04:53 AM |
| Ivy Bridge GPU article | kalelovil | 04/26/12 06:22 AM |
| Ivy Bridge GPU article | Arcadian | 04/26/12 07:06 AM |
| Ivy Bridge GPU article | mik | 04/26/12 03:52 PM |
| Ivy Bridge GPU article | egan | 04/23/12 10:50 AM |
| Ivy Bridge GPU article | Anon | 04/24/12 02:03 AM |
| Ivy Bridge GPU article | egan | 04/24/12 04:19 AM |
| Didn't you hear about "wheel of reincarnation"? (NT) | Michael S | 04/24/12 08:04 AM |
| Ivy Bridge GPU article | anon | 04/24/12 06:31 PM |
| Ivy Bridge GPU article | ltcommander.data | 04/23/12 06:44 PM |
| Ivy Bridge GPU article | bakaneko | 04/24/12 04:24 AM |



