By: Arcadian (no.delete@this.thanks.com), April 26, 2012 7:06 am
Room: Moderated Discussions
kalelovil (kalelovil@gmail.com) on 4/26/12 wrote:
---------------------------
>You are referring to the max turbo speed of the IGP.
>Even assuming the same base and maximum clock speed, a 45W TDP will allow the APU
>to run its IGP closer to this max turbo more often than a 35W TDP.
In theory you're correct that more power allows better residency at the max turbo frequency, but in practice, the graphics core is already Vcc limited at the 35W TDP level, so you are hitting max turbo frequency pretty much whenever the graphics needs it.
(Speaking for myself)
---------------------------
>You are referring to the max turbo speed of the IGP.
>Even assuming the same base and maximum clock speed, a 45W TDP will allow the APU
>to run its IGP closer to this max turbo more often than a 35W TDP.
In theory you're correct that more power allows better residency at the max turbo frequency, but in practice, the graphics core is already Vcc limited at the 35W TDP level, so you are hitting max turbo frequency pretty much whenever the graphics needs it.
(Speaking for myself)
| 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 |



