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[Engadget] AMD Piledriver cores will clock over 4GHz, employ 'resonant clock mesh'  

post #1 of 41
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AMD's Trinity APU can do some remarkable things, but we still don't know exactly what magic ingredients make its Piledriver cores superior to the tepidly received Bulldozer. Now though, a firm called Cyclos claims it's supplying 'resonant clock mesh' power-saving technology for use in the new module. In speaking to the media, it's revealed that this will help to enable a "4+ GHz" factory clock speed, which sounds high if it definitely refers to an integrated chip with low-power credentials. As for the resonant clock mesh itself, it's a bit like KERS for processors: it recycles clock power instead of letting it dissipate and thereby enables higher clock speeds in "next generation SoCs that also require ultra-low power consumption." We also know that the technology is financially backed by ARM and Siemens and has seen precious little implementation prior to AMD -- which is fine, so long as all that resonance doesn't make our rig hum even louder.

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post #2 of 41

Nice, thanks for posting.thumb.gif

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post #3 of 41
Recycling residual power seems pretty smart. looks like theyre finally approaching the clocks they wanted all this time. wonder how this will effect overclocking
post #4 of 41
5.5ghz air/10+ liquid nitrogen anyone? devil.gif
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post #5 of 41
I've seen this posted from a couple different sources already.
Anyway, I hope this means a nice step forward for AMD with piledriver. I'm looking forward to having another AMD system worth being proud of like in the earlier days of Deneb C3's.
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post #6 of 41

This is good news still Amd is once again looking at this in the wrong way, they should be looking at clock per clock efficiency not brute force, 5ghz per core is useless if its not efficiently utilized, we all saw that brute force didn't made Bulldozer any good.

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post #7 of 41
Quote:
Originally Posted by Deacon View Post

This is good news still Amd is once again looking at this in the wrong way, they should be looking at clock per clock efficiency not brute force, 5ghz per core is useless if its not efficiently utilized, we all saw that brute force didn't made Bulldozer any good.

This is what they are doing now. They already are hitting high clock speeds, but the IPC/IPS is low and the power consumption was high. They now want to stay with those clock speeds or push them a little bit further, but they want to do this while lowering power consumption (arch tweaks and this RCM) and raise IPC/IPS as slides suggest AMD is targerting now as well.

I see this as AMD hopefully getting back on the right track. WBut, even as someone who dislikes Intel and cheers for the underdog, BD is still fresh in our minds, so lets all chill and wait for some real info. It's fine and dandy to speculate and guess, but please state such things as just that, opinions. Also, no AMD trashing. Lets keep an AMD thread clean for once.
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post #8 of 41
Quote:
Originally Posted by Deacon View Post

This is good news still Amd is once again looking at this in the wrong way, they should be looking at clock per clock efficiency not brute force, 5ghz per core is useless if its not efficiently utilized, we all saw that brute force didn't made Bulldozer any good.


As previous news articles have told us, AMD is slowly bringing IPC back up starting with Piledriver.
Assuming this is true, 10-15% IPC increase + an equal or higher percentage of clock speed increase would give Piledriver a healthy performance boost over Bulldozer.

Also, as many other OCN users have pointed out, a big clock speed jump is far from useless if you consider instructions per second as well as instructions per clock.

Power consumption is also a BIG issue that AMD needed to address with Bulldozer's successor. While we all know that this architecture won't be cured with one next release, it's actually you and probably many others that are looking at this in the wrong way by only considering IPC or per-core performance. By definition, lower power consumption actually displays more efficiency.
Edited by metal_gunjee - 2/22/12 at 6:55am
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post #9 of 41
Release date on Piledriver?
    
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post #10 of 41
Release date? null
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