Decoupling capacitors on GPUs

Article: Adaptive Clocking in AMD's Steamroller
By: Ben (benbowen.delete@this.zoho.com), August 27, 2014 10:56 pm
Room: Moderated Discussions
Gabriele Svelto (gabriele.svelto.delete@this.gmail.com) on May 8, 2014 9:24 am wrote:
> I found the article quite interesting and it got me thinking about the potential impact
> this might have on GPUs and made me remind about one datapoint we have on this topic.
>
> Back in the RV7xx days when AMD introduced the RV790 XT (aka Radeon HD 4890) they added a large ring of decoupling
> capacitors to the existing RV770 XT design to boost its maximum clock speed. The RV770 was originally released
> at 750MHz and the RV790 started at 850MHz but was widely available in overclocked configurations up to 1GHz.
> Interestingly the die-size increased significantly from 256 mm² to 282 mm², a >10% increase.
>
> While those chips are now relatively old and the techniques used in GPU design might
> have improved, they still give us an idea of how much benefit could be reaped by getting
> rid of decoupling capacitors. Current high-end GPUs sport both higher power consumption
> and larger dies than the RV7xx family so the benefits might be very tangible.

Interesting.
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TopicPosted ByDate
New article: Adaptive Clocking in AMD’s SteamrollerDavid Kanter2014/05/06 12:33 PM
  New article: Adaptive Clocking in AMD’s Steamrolleritsmydamnation2014/05/06 10:12 PM
  New article: Adaptive Clocking in AMD’s SteamrollerXi Yang2014/05/06 11:08 PM
  Decoupling capacitors on GPUsGabriele Svelto2014/05/08 08:24 AM
    Decoupling capacitors on GPUsBen2014/08/27 10:56 PM
  New article: Adaptive Clocking in AMD’s SteamrollerPoindexter2014/05/10 05:06 PM
  New article: Adaptive Clocking in AMD’s SteamrollerRob Thorpe2014/05/12 04:42 AM
    New article: Adaptive Clocking in AMD’s SteamrollerDavid Hess2014/05/12 09:02 AM
      New article: Adaptive Clocking in AMD’s SteamrollerRob Thorpe2014/05/12 09:46 AM
    New article: Adaptive Clocking in AMD’s SteamrollerRicardo B2014/05/13 02:15 AM
      New article: Adaptive Clocking in AMD’s SteamrollerRob Thorpe2014/05/13 05:30 AM
    Multiple PLLs wouldn't work, but DLL jitter is no problemRobyn Henry2014/05/13 11:58 PM
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