By: David Kanter (dkanter.delete@this.realworldtech.com), April 26, 2012 7:51 am
Room: Moderated Discussions
kalelovil (kalelovil@gmail.com) on 4/26/12 wrote:
---------------------------
>David Kanter (dkanter@realworldtech.com) on 4/26/12 wrote:
>---------------------------
>>kalelovil (kalelovil@gmail.com) on 4/26/12 wrote:
>>---------------------------
>>>David Kanter (dkanter@realworldtech.com) on 4/25/12 wrote:
>>>---------------------------
>>>>It depends on the market and TDP constraints. For desktop, I'd totally agree with
>>>>you, but for notebook it's probably ambiguous
>>>>
>>>>David
>>>
>>>The Anandtech Ivy Bridge Laptop Preview shows 45W Ivy >Bridge only equalling 35W
>>>Llano despite all the higher TDP and non-IGP (but affecting
>>>the IGP's performance) advantages of the Intel platform.
>>
>>Which advantages are you thinking of?
>
>Faster memory and faster CPU.
>
>>
>>>Think of it this way; if a theoretical 45W Ivy Bridge laptop APU was designed with
>>>the graphics core (including its L3 access) removed and the Llano graphics core
>>>grafted in I would expect it to be at least 25% faster in >games than the current 45W Ivy Bridge APUs.
>>
>>That's not possible though. If you look at the system architecture, the two are
>>quite different and that has a major impact on the GPU.
>>
>
>I was talking theoretically.
Right, well you'd have to work through some damn big differences. There's a reason why Llano has 2X the ROPs of IVB. It's the system architecture.
>>>David Kanter (dkanter@realworldtech.com) on 4/25/12 wrote:
>>>---------------------------
>>>>and for 17W, I'd expect IVB to be better.
>>>>
>>>>David
>>>
>>>We will have to wait and see, and it will depend on a >number of factors including
>>>whether it is being used on battery power or mains and the >ability of the laptop
>>>chassis and cooling system to let it turbo.
>>
>>Battery power of course. I do agree that it's very system dependent.
>>
>>>When it couldn't effectively turbo the igp results of 17W Sandy Bridge were very disappointing:
>>>http://techreport.com/articles.x/21551/7
>>>http://techreport.com/articles.x/21902/7
>>>
>>
>>Sandy Bridge was never really meant for 17W. Ivy Bridge actually makes sense there,
>>and Haswell will be an excellent fit.
>>
>>Also, what would you consider the 17W Llano results?
>>
>>David
>
>As far as I know there are none.
So wouldn't you say that IVB is the better 17W solution?
Just like I'd say that a Cortex M0 (or whatever is used) is a far better solution for a hard drive controller than an Intel Atom?
>AMD have had enough issues with Global Foundries' 32nm SOI >process without trying
>to make specialty ultra-low-voltage chips on it.
>Hopefully the process has settled down now and AMD's and >GF's engineers have the hang of it.
It's possible.
DK
---------------------------
>David Kanter (dkanter@realworldtech.com) on 4/26/12 wrote:
>---------------------------
>>kalelovil (kalelovil@gmail.com) on 4/26/12 wrote:
>>---------------------------
>>>David Kanter (dkanter@realworldtech.com) on 4/25/12 wrote:
>>>---------------------------
>>>>It depends on the market and TDP constraints. For desktop, I'd totally agree with
>>>>you, but for notebook it's probably ambiguous
>>>>
>>>>David
>>>
>>>The Anandtech Ivy Bridge Laptop Preview shows 45W Ivy >Bridge only equalling 35W
>>>Llano despite all the higher TDP and non-IGP (but affecting
>>>the IGP's performance) advantages of the Intel platform.
>>
>>Which advantages are you thinking of?
>
>Faster memory and faster CPU.
>
>>
>>>Think of it this way; if a theoretical 45W Ivy Bridge laptop APU was designed with
>>>the graphics core (including its L3 access) removed and the Llano graphics core
>>>grafted in I would expect it to be at least 25% faster in >games than the current 45W Ivy Bridge APUs.
>>
>>That's not possible though. If you look at the system architecture, the two are
>>quite different and that has a major impact on the GPU.
>>
>
>I was talking theoretically.
Right, well you'd have to work through some damn big differences. There's a reason why Llano has 2X the ROPs of IVB. It's the system architecture.
>>>David Kanter (dkanter@realworldtech.com) on 4/25/12 wrote:
>>>---------------------------
>>>>and for 17W, I'd expect IVB to be better.
>>>>
>>>>David
>>>
>>>We will have to wait and see, and it will depend on a >number of factors including
>>>whether it is being used on battery power or mains and the >ability of the laptop
>>>chassis and cooling system to let it turbo.
>>
>>Battery power of course. I do agree that it's very system dependent.
>>
>>>When it couldn't effectively turbo the igp results of 17W Sandy Bridge were very disappointing:
>>>http://techreport.com/articles.x/21551/7
>>>http://techreport.com/articles.x/21902/7
>>>
>>
>>Sandy Bridge was never really meant for 17W. Ivy Bridge actually makes sense there,
>>and Haswell will be an excellent fit.
>>
>>Also, what would you consider the 17W Llano results?
>>
>>David
>
>As far as I know there are none.
So wouldn't you say that IVB is the better 17W solution?
Just like I'd say that a Cortex M0 (or whatever is used) is a far better solution for a hard drive controller than an Intel Atom?
>AMD have had enough issues with Global Foundries' 32nm SOI >process without trying
>to make specialty ultra-low-voltage chips on it.
>Hopefully the process has settled down now and AMD's and >GF's engineers have the hang of it.
It's possible.
DK
| 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 |
