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[WCCFT]AMD Zen Engineering Sample Benchmarks Leak Out – Summit Ridge CPU Faster Than The Intel Core i5 4670K In AotS Benchmark - Page 30

post #291 of 306
Quote:
Originally Posted by Ultracarpet View Post

Why the multicore so low? It's like 1/3 of perfect scaling...

1. When only one Core is being used it proably turbo boost all the way to 3.0-3.5ghz but when all cores are used they only go up to 1.5 ish ghz.
2. It seems like SMT was disabled or not supported by this ES.
2A. The new Zen server CPU may not support SMT at all.... but I really doubt it.
3. The Xeons behave the same way in Geekbench, their MT scores are no where near perfect scaling.
Edited by DarkBlade6 - 10/5/16 at 1:55am
post #292 of 306
Quote:
Originally Posted by venom55520 View Post

I think everyone in this community should be rooting for AMD to do well. We need the competition before we go back to pentium Dual-core days.

I don't root anything anymore. I just wait and observe cynically.

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post #293 of 306
Quote:
Originally Posted by Darkwizzie View Post

I don't root anything anymore. I just wait and observe cynically.

That's the spirit!
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post #294 of 306
post #295 of 306
AMD claimed 2x performance of "Orochi" and everyone translated this to 2x performance of FX 8350 wich is Vishera. Orochi is FX 8100 series.

http://wccftech.com/amd-zen-cpu-performance-double-fx-8350/



There is even no number on the scale so this really means nothing, however bulldozer scored around 6pts. in Cinebench so its 12 for Summit. wth.gif
Quote:
Originally Posted by kd5151 View Post


5930k 11.75
6800k 12.28

Is Bristol 50% faster than Kaveri? Nope.
post #296 of 306
Quote:
Originally Posted by Pro3ootector View Post

AMD claimed 2x performance of "Orochi" and everyone translated this to 2x performance of FX 8350 wich is Vishera. Orochi is FX 8100 series.

Orochi is FX-8x000 - Bulldozer or Piledriver.

Orochi, in fact, is just the name of a CPU layout (floorplan) and has nothing to do with architecture.

If AMD would make a quad module Excavator CPU with L3 cache, it could very well be an Orochi CPU.

Orochi is an eight-headed and eight-tailed serpent...
post #297 of 306
Quote:
Originally Posted by Marios145 View Post

Cinebench is gaining AT LEAST x2 performance, since Zen has 1FPU per core, while BD had 1FPU per module...add HT on top of that and every FP test is going to show extreme gains on the 8cores.

Yes, a near doubling of Cinebench performance over Piledriver Orochi (per clock, anyway) should be expected... but not because of the higher FPU count. Cinebench showed proper scaling with the FPUs in Orochi because the FPUs were able to handle eight full-performance threads in non AVX code (such as Cinebench).

XV IPC: +15%
IPC: +40%
SMT: +20%

That's 93.2% faster right off the bat... DDR4, specific instruction improvements, and other factors are all undoubtedly positive offsets to this figure... and AMD's SMT might be better than it appears...

On that note, I've done some examinations of Zen's SMT and believe it will show some pretty significant single-threaded handicapping when activated... because AMD statically partitioned a few assets in the CPU. I think the penalty will be larger than Intel's penalty (which is pretty small at this point), but still only in the area of 5~10% when it is observable.
post #298 of 306
Quote:
Originally Posted by looncraz View Post


Orochi is FX-8x000 - Bulldozer or Piledriver.

Orochi, in fact, is just the name of a CPU layout (floorplan) and has nothing to do with architecture.

If AMD would make a quad module Excavator CPU with L3 cache, it could very well be an Orochi CPU.

Orochi is an eight-headed and eight-tailed serpent...

 

Preach it. This has been an annoying misconception spawned by these slides. Those of us with more experience working with AMD's more recent chips know that their generic naming schemes cover a lot of product. That said, the most specific wording given by AMD thus far referred to Excavator so if we simply must assume anything the most logical inference would be 'new' Orochi, rather than the old.

     
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post #299 of 306
The BD/PD module can execute 2x128bit FP instructions and also has 2x integer cores(2 cores sharing the FPU).

Zen core can execute 2x128bit FP instructions and also has an integer core(there's no sharing here).

That gives BD/PD a total of 8x128bit FPUs.

It gives Zen a total of 16x128bit FPUs.

Cinebench uses mostly SSE which is 128bit.(correct me if i'm wrong)

Now all other things equal, the 8C/8T Zen will theoretically have twice the FP performance of 4M/8C/8T BD and derivatives.
Edited by Marios145 - 10/5/16 at 3:32pm
post #300 of 306
Quote:
Originally Posted by looncraz View Post

Orochi is FX-8x000 - Bulldozer or Piledriver.

Orochi, in fact, is just the name of a CPU layout (floorplan) and has nothing to do with architecture.

If AMD would make a quad module Excavator CPU with L3 cache, it could very well be an Orochi CPU.

Orochi is an eight-headed and eight-tailed serpent...


Yeah, Orochi is just a reference to an old Shinto religion myth from Japan. (Orochi is a word associated with Snakes, and it's also a pun because the word "hachi" means the number "8" in japanese so Orochi means both eight and snake)


(https://en.wikipedia.org/wiki/Yamata_no_Orochi)

In the story the storm god Susano'o fought an eight headed serpent called Yamata no Orochi by leaving eight Sake barrels out to get all eight heads drunk, then cutting off each head one by one etc.. interesting piece of mythology for those who like that kinda thing
 
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