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*** AMD "Zen" thread (inc AM4/APU discussion) ***

Freddie1980 said:
Far be it for me to throw a damp rag on everyone's hopes for this chip but has there been any more confirmation or updates/leaks on the Ryzen's rather high memory latency? From what I've seen so far that's Ryzen's only apparent weakness although I'm not sure how much of an impact that will have in real world applications.
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As of January vendors were qualifying memory performance with locked sub timings. Truth of the matter is, only real confirmation will be testing stability with the right methods once things are available.
 
Yea thats pretty incredible,way better than i expected for ST performance honestly.


edit: Damm image problems :/
 
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I saw the following mentioned on AT forums:

https://forums.anandtech.com/threads/summit-ridge-zen-benchmarks.2482739/page-228#post-38743663

Has anyone posted this link before?
http://www.overclock.net/t/1623292/lets-talk-about-a-ryzen-es

The guy seems to have Ryzen (check pics of his setup in the topic).
In his own words:
"
- IPC is at the least Ivy Bridge-E and higher
- SMT for Ryzen is more efficient then Intel's HyperThreading
- Ryzen has no cold Bug
- Cinebench R15 hits 145 single thread @ 3.4GHz on ES, earlier models hit 130-140, retails should hit 140-150
- Most Ryzen ES samples hit 4.3-4.5GHz MAX on Air with all core enabled
- Intel is testing out Skylake-X, and beats out current 6950X with 8C/16T because it can hit higher clocks."

So lower end of the IPC scale is IVB-E, upper end is SKL.
No cold bug, OCing on par with BDW-E if not better.
Cinebench R15 score at 3.4Ghz seems a bit high at 145pts. SKL gets 37% boost from SMT, if Zen gets the same(similar) boost then 3.6Ghz base clock model(top SKU) should score 1682pts provided clocks do not go above 3.6Ghz. That is 9% higher than stock 6900K that runs @ 3.5Ghz in this benchmark.

Hype train has been shifted in the next gear. Nobody can get aboard since it is going too damn fast.


edit:
Same user posted this also: "The 179.99 Dollar R3 1300 is going to be 5-8% slower than a 7700K and be 150 dollars cheaper". <- I assume he is talking about OCing on air this sucker to 4.3Ghz? Has to be since base and Turbo of this poor chip are very low.

Hype level over 9000!!!
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I expect the lower end of the scale must be in situations where AVX2 is used(since Intel has more resources dedicated to that it appears),but the CB R15 scales are decent.

The CB R15 scores are decent:

http://www.eurogamer.net/articles/digitalfoundry-2017-intel-kaby-lake-core-i7-7700k-review

The Digital Foundry has the Core i7 7700K at 4.5GHZ scoring 194 points,ie,its clocked around 32% higher whilst scoring 34% higher.
 
http://www.guru3d.com/news-story/amd-ryzen-die-shot-and-caches-shown-at-icc.html

If the specs are the true next gen CPU upgrade they appear to be on paper Intel are going to have to knock off 30-40% £££ overnight to just compete with AMD. This is looking like 12 years ago before Core 2 Duo made Intel dominant again scenario where AMD will take the lead for a few years & Intel will be forced to knock prices down massively so consumer wins either way but right now I would be going with the Ryzen platform as Intel will take a few years to ramp up a faster better product. That takes time AMD appear to have snuck one under the carpet right in front of Intel's greedy little paws ;)
 
Freddie1980 said:
Far be it for me to throw a damp rag on everyone's hopes for this chip but has there been any more confirmation or updates/leaks on the Ryzen's rather high memory latency? From what I've seen so far that's Ryzen's only apparent weakness although I'm not sure how much of an impact that will have in real world applications.
Click to expand...

The whole memory latency/weakness is not really a leak and is poor speculation at best that is going round. Afaik only one set of leaked results indicated high main mem latency but we know nothing of the setup. You could replicate it with Intel using ram at low clocks and high timings. The other leaked results (synthetic tests) putting it within spitting distance of Intel indicate it is more than able to feed its cores.
 
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Sargatanas2511 said:
I love it, the leaks are coming thick and fast now and they all point to one thing! :D
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Fake results pandering to our desires in order to make it go viral and thus provide more chance to earn ad revenue? :D

(Yeah, I hope it's real, but if I wanted to milk some money out of ads, that's the sort of story I would be spreading right now.)
 
The memory thing has been talked about quite a lot, that Passmark score was on an A320 Mobo with 2400mhz ram with CAS17 or something timings, ie it was garbage, i think general consensus is Ryzen on 3000+ Ram with CAS15 or better is going to be the go to, obviously if you can get higher Ram its good but i believe the timings are key.
 
Most people running Kaby Lake and Ryzen systems will probably be running memory under 3000MHZ anyway,its only overclockers who really end up mucking around with these sorts of things.

Edit!!

Also,faster memory costs more,so plenty of systems will be shipping with cheaper memory I suspect.
 
eddiew said:
Fake results pandering to our desires in order to make it go viral and thus provide more chance to earn ad revenue? :D

(Yeah, I hope it's real, but if I wanted to milk some money out of ads, that's the sort of story I would be spreading right now.)
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I know what you mean but people posting things on facebook and forums isn't really ad revenue! Everything seems to be pointing in one direction right now whether its from an unreliable site, a trustworthy site or on forums so I am beginning to think there must be some foundation.
 
AWPC said:
If the specs are the true next gen CPU upgrade they appear to be on paper Intel are going to have to knock off 30-40% £££ overnight to just compete with AMD.
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Even when the Athlon XP had it's genitals firmly lodged in the Pentium IV's throat market share was still in Intel's favour, because a lot of consumers will simply always buy Intel, as a result Dell/HP/etc know this and are more likely to spec Intel even if it raises their prices and lowers their performance.
 
CAT-THE-FIFTH said:
Most people running Kaby Lake and Ryzen systems will probably be running memory under 3000MHZ anyway,its only overclockers who really end up mucking around with these sorts of things.

Edit!!

Also,faster memory costs more,so plenty of systems will be shipping with cheaper memory I suspect.
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There's barely any premium on fast DDR4 at the moment. The cheapest 16GB 2133MHz kit I can find is around £87, whereas you can get a 3000MHz kit for a fiver more. I paid £75 for a 16GB 3200MHz kit last May though, so prices seem to be really high right now.
 
Aretak said:
There's barely any premium on fast DDR4 at the moment. The cheapest 16GB 2133MHz kit I can find is around £87, whereas you can get a 3000MHz kit for a fiver more. I paid £75 for a 16GB 3200MHz kit last May though, so prices seem to be really high right now.
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Yup, nand prices just keeping going up with no end in sight yet. It's so ridulous prices are now higher than when skylake came out. Got my 8gb 2666MHz for £50, they're £65+ now.
 
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