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[Various] Preview of AMD "Naples" server CPU - Page 4

post #31 of 147
Quote:
Originally Posted by Tex1954 View Post

I want to know the real clock speeds and such. 128 threads at 1GHz is not as good as 64 @ 3GHz.... etc...

Having said that, VERY INTERESTING and I wonder if the pricing will be somewhere in a range normal folks can afford...

biggrin.gif

The sweet spot for 14nm and this CPU design seems to be in the mid/upper 2ghz range with little improvement power wise from going any lower. I could imagine you can get ~2.6ghz and still be inside 140w.

Ryzen doesn't start blowing out the power envelope until you get into the low/mid 3ghz range. I am pretty sure there was a review with underclocking results showing ~35w @ 2.4-2.6ghz for the consumer SKUs. (looks like 2.8ghz @ 45w from a tweet made by a reviewer, have not found the article again yet)

Actually, in the unrelated market of laptops, Ryzen could be a show stopper. 8c/16t laptop with ~2.2ghz base clock and ~3.3ghz 4 core turbo. Render junkies on the road would absolutely love that. A true HEDT class mobile chip.
Edited by KarathKasun - 3/7/17 at 10:12am
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post #32 of 147
With a package as big as shown they can get away with a 200W TSP. It might be as big as LGA 3647 which supports a 220W Xeon Phi x200.

It makes sense AMD would use PCIe lanes for infinity fabric since they already use that for chipset communication. Each module has 8 lanes for the chipset so combine 4 of those and another 4 from the other socket and you have 64 PCIe lanes used for fabric with another 128 for IO.

EDIT: So this explains it better, and it is 128 lanes per socket: https://www.servethehome.com/amd-naples-competition-re-ignites-zen-hits-server-market/

I wonder if they will support something like Intel's OmniPath for external interconnects to go beyond the dual-socket platform.
Edited by IvantheDugtrio - 3/7/17 at 10:41am
post #33 of 147
i want a $2k 64core/128thread chip, 4 sockets

would be great for people with jobs demanding the power XD
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post #34 of 147
Here is a clearer image...



Like I was saying, in total, there are 128 lanes for I/O. Maybe I didn't clarify that I was always talking about the dual socket version.
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post #35 of 147
There are some Ryzen 7 1700 Linux benchmarks out there and they just savage Intel on a level many probably haven't seen. Naples should be glorious.

Quote:
Originally Posted by LuckyX2 View Post

https://www.youtube.com/watch?v=ZtYTPcshyA0

2x performance over Intel, core for core (they matched to 44 cores)
Goodbye Intel.

Just watched the video, Intel is going to be hurting.
Edited by PostalTwinkie - 3/7/17 at 2:17pm
    
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post #36 of 147
Quote:
Originally Posted by LuckyX2 View Post

https://www.youtube.com/watch?v=ZtYTPcshyA0

2x performance over Intel, core for core (they matched to 44 cores)
Goodbye Intel.

Unless you're saying goodbye to your Xeon's, Intel isn't going anywhere and I cannot imagine despite AMD's amazing come back that things are going to change anytime soon. They have been the budget brand for a decade while Intel has been the high-performance brand.

Maybe if AMD can sustain this lead for the next couple of years they'll be stronger than ever and hopefully become the performance brand again, but if Intel is cooking something funny, we might never see it.
post #37 of 147
Quote:
Originally Posted by KarathKasun View Post

The sweet spot for 14nm and this CPU design seems to be in the mid/upper 2ghz range with little improvement power wise from going any lower. I could imagine you can get ~2.6ghz and still be inside 140w.

Ryzen doesn't start blowing out the power envelope until you get into the low/mid 3ghz range. I am pretty sure there was a review with underclocking results showing ~35w @ 2.4-2.6ghz for the consumer SKUs. (looks like 2.8ghz @ 45w from a tweet made by a reviewer, have not found the article again yet)

Actually, in the unrelated market of laptops, Ryzen could be a show stopper. 8c/16t laptop with ~2.2ghz base clock and ~3.3ghz 4 core turbo. Render junkies on the road would absolutely love that. A true HEDT class mobile chip.
The Stilts review showed clock and power scaling and i think it hit a wall at 3.3-3.5 or so but if you know another I'd love to read it. Also on the mobile side just imagine a 4c/8t 480 class apu with hbm2... https://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/

"As indicated by the Vmin-Fmax curve, Zeppelin's voltage scaling is perfectly linear until 3.3GHz (25mV per 100MHz). The first deviation ("Critical 1") from this linear behavior can be seen at 3.3GHz. The second and the final deviation ("Critical 2") can be seen at 3.5GHz. Beyond this point the voltage scaling is neither linear or recovers even temporarily, and the CPU is requiring higher voltage in increasingly larger steps to scale further.

The ideal frequency range for the process or the design (as a whole) appears to be 2.1 - 3.3GHz (25mV per 100MHz). Above this region (>= 3.3GHz) the voltage scaling gradually deteriorates to 40 - 100mV+ per 100MHz."
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post #38 of 147
Quote:
Originally Posted by CULLEN View Post

Unless you're saying goodbye to your Xeon's, Intel isn't going anywhere and I cannot imagine despite AMD's amazing come back that things are going to change anytime soon. They have been the budget brand for a decade while Intel has been the high-performance brand.

Maybe if AMD can sustain this lead for the next couple of years they'll be stronger than ever and hopefully become the performance brand again, but if Intel is cooking something funny, we might never see it.
Enterprise customers look at performance/$ metrics very seriously. When AMD introduced the original Hammer-based Opteron in 2003, they went from 0 to 25% of the entire enterprise market share by 2005. In that same period they were capturing nearly 50% desktop PC sales with their Athlon 64.
post #39 of 147
Quote:
Originally Posted by CULLEN View Post

Unless you're saying goodbye to your Xeon's, Intel isn't going anywhere and I cannot imagine despite AMD's amazing come back that things are going to change anytime soon. They have been the budget brand for a decade while Intel has been the high-performance brand.

Maybe if AMD can sustain this lead for the next couple of years they'll be stronger than ever and hopefully become the performance brand again, but if Intel is cooking something funny, we might never see it.

You completely underestimate three things...

  • How fast large Data Centers will overhaul their current hardware.
  • How many older Data Centers are being revamped.
  • How many brand new data centers are being built.

When you are looking at the performance increases shown by the R7 1700 in Linux paired with the Naples previews, Zen is a monster of an architecture. Data Centers will flock to the types of performance increase it is offering. Not only that but the one video even demonstrated a data set that Intel couldn't even handle but Naples could - that isn't something to ignore.

EDIT:

AMD just launched a very incredible architecture that is only going to get better. An architecture that offers very real and tangible benefits over the competition even. All at a time when 'Big Data' is exploding at an exponential rate. The concern right now isn't how much data is being generated, but how to process that data in what has become a real-time World.

The shift in market is going to be staggering if Intel can't make serious changes to what they offer.
Edited by PostalTwinkie - 3/7/17 at 2:59pm
    
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post #40 of 147
It all comes down to how efficient Naples is. Less power consumption is only part of the equation here. Even if Intel is only 5% more efficient, datacenters will still use their CPUs due to savings from operation costs.
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