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

SiDeards73 said:
If you look at Anand Forums, a guy dome some testing on those Passmark tests that the Ryzen was weak in and concluded that Mem was the issue, he done various tests with different mem speeds and basically better timings is a boost for Ram in those tests, higher frequency also helps but the timings are important, basically what i took from it is if you can get say 3200mhz ram thats say running CAS15 and maybe drop it to 3000mhz and possibly tighten the timings up you may see a better boost.

Those Ryzen tests were done on 2400mhz mem with rubbish timings by all accounts.

Thread added for reference https://forums.anandtech.com/threads/summit-ridge-zen-benchmarks.2482739/page-219
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Which member should i read? all i see i a whole bunch arguing...
 
SiDeards73 said:
Look through the thread for ItsMyDamnation's posts, he's the guy doing the majority of the ram testings
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Thx... just seen it, he's getting big swings in performance from different RAM settings, Prime numbers is what Prime95 does, depending on how stressful that is for the IMC it could be throttling, in my mind it doesn't compute that FP and Integer is right up there but prime crunching is 50% slower, that doesn't make any sense unless the thing is throttling.

TBH i'm going to ignore that because i very much doubt thats a real world thing, in the same way Prime95 isn't.
 
I wonder when we will see actual game benchmarks and real world performance head to head... this is going to be the big one. Benchmarks are good and all, and so far they are very promising, but I eagerly await proper reviews to materialise. Not long now hopefully.
 
Right, think of it like Furmark for GPU's, it puts a completely unrealistic load on the GPU, modern GPU's are very complex and sensitive, both nVidia and AMD just throttle the crap out of Furmark now because if they didn't they could go BANG!

Even in the world of overclocking increasingly pepole seeing the classic 'Prime95 stable' as unrealistic for modern CPU's which with AVX ecte... are far more complex and fragile.

As far as i know there is no real use for prime number crunching, if there is its just not something Zen is designed to do so when it detects such a workload running its probably arbitrarily reducing the multi on the IMC by 50%.
 
Makes sense, watching that David Kanter guy talk about the direction of Zen and reading a view interviews with Zen engineers etc, it seems AMD has targetted this CPU primarily at desktop users for everyday use / gaming etc, it seems they stripped back lots of stuff you wouldnt normally use in a cpu aimed at these tasks, which is kinda a good idea i guess. Will be interesting to see how the Naples version differs from Ryzen as that will be aimed at server and enterprise markets, something Ryzen is probably pretty weak in.
 
melmac said:
Will Ryzen CPUs and motherboards bring any new features? Sorry, haven't been following the thread at all.
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Compared to the current lot of AMD stuff, yes, loads and loads of things, but no, they look to be pretty much on par with Z270 in terms of motherboard features. The one really interesting CPU feature is XFR, which if it works seems to be similar to NVidias boost technology, and the CPU will supposedly overclock its self based on power and cooling available.
 
SiDeards73 said:
Makes sense, watching that David Kanter guy talk about the direction of Zen and reading a view interviews with Zen engineers etc, it seems AMD has targetted this CPU primarily at desktop users for everyday use / gaming etc, it seems they stripped back lots of stuff you wouldnt normally use in a cpu aimed at these tasks, which is kinda a good idea i guess. Will be interesting to see how the Naples version differs from Ryzen as that will be aimed at server and enterprise markets, something Ryzen is probably pretty weak in.
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Exactly, One of the mistakes with Bulldozer is that its a bit of a Jack of all trades and master of none, its pretty good cruncher, its pretty good at rendering, encoding... its got everything in it, which makes it quite large, not at all efficient nor in anyway focused, Bulldozer is a metaphor for AMD at the time, bloated and aimless.....

Since Lisa has taken over and with Keller back at the helm of CPU's AMD are once again focused, the products that are now coming to fruition from that are targeted.
 
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Prices on a reputable UK company website, I purchase from them often via a business account and from my experience, this company sells at the preorder price so the prices on these are looking good. (I removed company name for obvious reasons)

Anyone know what is MPK IN and TRAY IN? Seems to adjust the price slightly.

Edit: an 8C16T 3.8Ghz CPU with XFR for £380 sounds insane when you look at the Intel pricing we are used to. With the rumoured AM4 Mobo pricing, you should be able to get a beast setup for sub £500!
 
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