By: Patrick Chase (patrickjchase.delete@this.gmail.com), May 20, 2013 10:16 pm
Room: Moderated Discussions
Exophase (exophase.delete@this.gmail.com) on May 20, 2013 9:56 pm wrote:
> Not sure about the 40nm non-LP processes - AFAIK everyone was using LP except for
> nVidia who only used it for the companion core on Tegra 3.
TSMC 40LP wasn't high-K, and had fairly significant leakage. Also, I should have said "28HPL/HPM" instead of "28LP/HPM" in my post. 28LP is also not high-K.
> Qualcomm has actually not yet released an SoC implemented with HKMG. S800 will be the
> first to do so (and is what will enable the clock boost from 1.9GHz to 2.3GHz). They're
> already doing pretty well with power efficiency so this can only help, plus they're
> supposed to be bringing more improvements to the CPU uarch, I think.
Ah, you're right. The current crop are on 28LP which is (as noted above) not high-K.
> Not sure about the 40nm non-LP processes - AFAIK everyone was using LP except for
> nVidia who only used it for the companion core on Tegra 3.
TSMC 40LP wasn't high-K, and had fairly significant leakage. Also, I should have said "28HPL/HPM" instead of "28LP/HPM" in my post. 28LP is also not high-K.
> Qualcomm has actually not yet released an SoC implemented with HKMG. S800 will be the
> first to do so (and is what will enable the clock boost from 1.9GHz to 2.3GHz). They're
> already doing pretty well with power efficiency so this can only help, plus they're
> supposed to be bringing more improvements to the CPU uarch, I think.
Ah, you're right. The current crop are on 28LP which is (as noted above) not high-K.