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[AMD] Breakthrough Performance of “Zen” (Head to Head with Broadwell-E!) - Page 48

post #471 of 580

I'm going to be rich with these stock prices going up I love AMD :thumb:

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post #472 of 580
Quote:
Originally Posted by umeng2002 View Post

This thing better also have PCIe 4

AMD has been lagging too far behind in I/O too.
Well it's not going to. The PCI-E 4.0 spec isn't even complete yet, and Zen's design has been locked for a while.

Plus, PCI-E 4.0 is useless at this time. Modern video cards aren't even bottlenecked by a PCI-3.0 x8 connection, and an x4 connection is about a 5% penalty.

By the time GPUs need the bandwidth PCI-E 4.0 requires, Zen 1 won't even be relevant.
post #473 of 580
Quote:
Originally Posted by AmericanLoco View Post

Well it's not going to. The PCI-E 4.0 spec isn't even complete yet, and Zen's design has been locked for a while.

Plus, PCI-E 4.0 is useless at this time. Modern video cards aren't even bottlenecked by a PCI-3.0 x8 connection, and an x4 connection is about a 5% penalty.

By the time GPUs need the bandwidth PCI-E 4.0 requires, Zen 1 won't even be relevant.

Then Intel's new chips next year somehow have it and AMD is at another I/O disadvantage.

PCIe 4 was announced in 2011, and I sure AMD, Intel, etc. all know where PCI-SIG is going with the spec.

They can easily "guess" where it's going to be finalized and design to that and hope it passes validation.... Like what they do with "draft" wi-fi specs.

Also:
Quote:
On the Intel Developer Forum, Synopsys presented a test machine running PCIe 4.0. Their IP has been licensed to several firms planning to present their chips and products at the end of 2016.

http://www.heise.de/newsticker/meldung/IDF-PCIe-4-0-laeuft-PCIe-5-0-in-Arbeit-3297114.html

So, yeah, I think there will be CPUs and mobos, and cards out pretty much when PCIe 4 gets finalized.
Edited by umeng2002 - 8/26/16 at 7:29am
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post #474 of 580
Companies can choose whether or not to implement a spec that's not completely finalized. AMD chose not to.

Anyways, like I said, it's literally not a disadvantage. A Fury X on a PCI-E 3.0 x4 slot only experiences a ~5% performance drop in some titles. An x8 slot has about 0 performance difference. Other titles show almost no drop at all with x4. If a near TOTL video card can get almost all the bandwidth it needs from an x4 slot, why does it matter if it has PCI-E 4.0 or not?

By the time the bandwidth PCI-E 4.0 provides is needed, AMD will have PCI-E 4.0 systems out.
post #475 of 580
The only aspect from PCI-E 4.0 that would be of any benefit is the 300w per slot standard. That is also only a benefit for cleaner cabling in ones case IMO.
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post #476 of 580
Thread Starter 
Quote:
Originally Posted by iamwardicus View Post

The only aspect from PCI-E 4.0 that would be of any benefit is the 300w per slot standard. That is also only a benefit for cleaner cabling in ones case IMO.

Also more bandwidth for x4 M.2 slots and U.2 ports. Which is good considering how fast these drives are getting.
post #477 of 580
Quote:
Originally Posted by iamwardicus View Post

The only aspect from PCI-E 4.0 that would be of any benefit is the 300w per slot standard. That is also only a benefit for cleaner cabling in ones case IMO.
http://www.guru3d.com/news-story/pci-express-4-will-deliver-75-watt-over-pcie-not-300w.html
post #478 of 580
Biggest initial advantage of each new PCI-E revision is being able to do the same things with half the lanes.
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post #479 of 580
Quote:
Originally Posted by Blameless View Post

HWBot is geared around benching for the sake of benching, while most people outside the benching scene care about benchmark scores only so far as they are representative of how well something can do actual work. A lot of the stuff on HWBot is pretty divorced from actual application performance.

Definitely have to agree. Just look at Firestrike or Catzilla runs as there is an insane amount of tweaks and tricks to getting a better score... And a reasonable amount of people assuming someone else is cheating because they're better at driver tweaks, memory optimizations, or even work on a bios... And of course when asked, most benchers will reply back who the question "what tweaks did you use" the standard answer seems to be "the usual ones".
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post #480 of 580
teaks tricks and the word cheat are different.

Lets say you use W8 with the RTC issues that OS has. Your going to beat my score.

If you can alter Benchmark coding to produce a better score that's cheating.

If you slim your OS with Nlite or something similar, it's not cheating, that's benching smart.

We compare our daily rigs together in a thread, well now that's the real deal right there!!! <----

Hey just because I can run DDR3 2800mhz Cas 12 on my Intel Rig doesn't mean my FX rig can. THIS is where tweaks come in.

_________

The difference from cheating and tweaking is the tweaking gains a usually pretty minimal. Diminishing returns in some cases. Cheating is usually pretty noticeable. HWBot governs this difference and pretty accurately. Most of the top guys out there have both run the cheats and tweaks for the understanding of and determination of the difference of the two.

@ "Usual Tweaking" -

A usual tweaker probably doesn't go out of the way to Nlite a windows XP OS for a pimod benchmark.

Usual benchmarking is a typical gamer that may submit his daily rig here and there to HWBot or not at all.

A Benchmarking individual will go out of the way to get a better score or faster time. I can tell you from experience that shaving 4 seconds Pi off your typical daily rig OS with tweaks and tricks is no easy task for PiMod, but can be done.

Had been addicted to Benchmarking. I have a special stack of special WXP and W7 installation disks. But none of these Operating systems have altered any benchmark in any way. They are stripped of a LOT of garbage you don't use for benchmarking.

So if I where really heavy into benchmarking with Blender or Blenchmark if you will, I would treat it no different than I would CatZilla, WPrime PiMod ect ect. I would try any tweak to get the best score. Even to beat an identical CPU at the exact same configuration.

I think competition would come to mind.

Let's compare our Blenchmark scores.
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