By: Mark Roulo (nothanks.delete@this.xxx.com), December 12, 2012 3:53 pm
Room: Moderated Discussions
Mr. Camel (a.delete@this.b.c) on December 12, 2012 1:39 pm wrote:
> EduardoS (no.delete@this.spam.com) on November 28, 2012 7:27 pm wrote:
> > Mr. Camel (a.delete@this.b.c) on November 28, 2012 7:23 pm wrote:
> > > It is still 4 way superscalar so it is technically not wider. Only the dispatch width is larger.
> > >
> > > Even if the base frequency is not higher, I would suspect that the turbo frequency should be a lot
> > > higher especially in cases where the GPU is not used (in which case it will be powered off), right?
> >
> > Well... The OoO window growth, the issue width, the register file,
> > the scheduller... I am not sure there is thermal headroom left...
>
> You were right. The top bin Haswell is rumored to have the exact same clock frequency
> as the top bin Ivy Bridge. And the TDP has gone up to 84W from 77W.
>
> http://chinese.vr-zone.com/43824/intel-haswell-cpu-will-release-at-2013-q2-with-13-model-including-4770k-4670k-for-overclocking-12112012/
Maybe this is new only to me, but the iGPU clock speed seems to have almost doubled in Haswell compared to Ivy Bridge: 1250 vs. 650.
*IF* Intel has also increased the iGPU in other ways (widening it, whatever ...) *AND* can solve the bandwidth starvation issue (Crystalwell maybe??), then it looks like the iGPU could easily double or more the performance compared to Ivy Bridge.
More pressure on AMD and the low end discrete cards ...
> EduardoS (no.delete@this.spam.com) on November 28, 2012 7:27 pm wrote:
> > Mr. Camel (a.delete@this.b.c) on November 28, 2012 7:23 pm wrote:
> > > It is still 4 way superscalar so it is technically not wider. Only the dispatch width is larger.
> > >
> > > Even if the base frequency is not higher, I would suspect that the turbo frequency should be a lot
> > > higher especially in cases where the GPU is not used (in which case it will be powered off), right?
> >
> > Well... The OoO window growth, the issue width, the register file,
> > the scheduller... I am not sure there is thermal headroom left...
>
> You were right. The top bin Haswell is rumored to have the exact same clock frequency
> as the top bin Ivy Bridge. And the TDP has gone up to 84W from 77W.
>
> http://chinese.vr-zone.com/43824/intel-haswell-cpu-will-release-at-2013-q2-with-13-model-including-4770k-4670k-for-overclocking-12112012/
Maybe this is new only to me, but the iGPU clock speed seems to have almost doubled in Haswell compared to Ivy Bridge: 1250 vs. 650.
*IF* Intel has also increased the iGPU in other ways (widening it, whatever ...) *AND* can solve the bandwidth starvation issue (Crystalwell maybe??), then it looks like the iGPU could easily double or more the performance compared to Ivy Bridge.
More pressure on AMD and the low end discrete cards ...
