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

Mrp1980 said:
From what we have seen you will gain nothing by going for the 1800x over the 1700 as they all seem to clock the same, the 1700 is the one to go for at this time, for higher clocks wait for later revisions.
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Thank you very much. Can't handle the itch any longer... need something new and shiny :D:cool:
Are you guys suggesting to stay with the Wraith cooler or go with a bigger fan or water cooling solution?
 
Frozennova said:
Not quite sure what you mean, but manual OC is across all cores on all of the chips
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Ok thanks, so from what I gather -

Manual OC disables Precision Boost and XFR and OC's across all cores

Precision Boost auto OC above Base clock across all cores guaranteed quoted clock speed regardless of cooler

XFR goes above quoted precision boost but only on one core

Is this correct?

What I want to understand is if I CBA to OC to get 4GHZ, you just buy an 1800 or 1600X and put it in a B350 and you have 4GHZ out of the box or you can get a none X and a more expensive board and OC
 
Relentless81 said:
Ok thanks, so from what I gather -

Manual OC disables Precision Boost and XFR and OC's across all cores

Precision Boost auto OC above Base clock across all cores guaranteed quoted clock speed regardless of cooler

XFR goes above quoted precision boost but only on one core

Is this correct?

What I want to understand is if I CBA to OC to get 4GHZ, you just buy an 1800 or 1600X and put it in a B350 and you have 4GHZ out of the box or you can get a none X and a more expensive board and OC
Click to expand...


I've seen some people 3.9/4ghz on 1700 with B350's, I don't know how important the higher end motherboards are.
 
Relentless81 said:
Ok thanks, so from what I gather -

Manual OC disables Precision Boost and XFR and OC's across all cores

Precision Boost auto OC above Base clock across all cores guaranteed quoted clock speed regardless of cooler

XFR goes above quoted precision boost but only on one core



Is this correct?

What I want to understand is if I CBA to OC to get 4GHZ, you just buy an 1800 or 1600X and put it in a B350 and you have 4GHZ out of the box or you can get a none X and a more expensive board and OC
Click to expand...

Manual OC is across all cores, disables boost and XFR

Boost and XFR are only for a single thread.

So in summary if you CBA to overclock 1800x in a B350 board will give you 3.7ghz all cores, 4ghz when a single core is loaded up
 
Relentless81 said:
Ok thanks, so from what I gather -

Manual OC disables Precision Boost and XFR and OC's across all cores

Precision Boost auto OC above Base clock across all cores guaranteed quoted clock speed regardless of cooler

XFR goes above quoted precision boost but only on one core


Is this correct?


What I want to understand is if I CBA to OC to get 4GHZ, you just buy an 1800 or 1600X and put it in a B350 and you have 4GHZ out of the box or you can get a none X and a more expensive board and OC
Click to expand...

For the 1800x out the box 3.6 base, boost 4ghz, The guaranteed advertised boost speed (4ghz is for one core) with Xfr a 100mhz offset is applied to the single core making it 4.1. All cores boost speed is 3.7ghz.
Can't confirm the 1700 or 1700x
You don't need an expensive board just one with a good vrm setup.
 
thanks guys, thought boost was all cores which is where I was getting confused.

so what will perform better, an 1800x out of the box or a 1700 with manual oc which means all cores are clocked higher than 1800x ?
 
Relentless81 said:
thanks guys, thought boost was all cores which is where I was getting confused.

so what will perform better, an 1800x out of the box or a 1700 with manual oc which means all cores are clocked higher than 1800x ?
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If you buy a 1700 then you would need a manual overlock of 4.1ghz to equal an 1800x in synthetic and apps, but with the all cores holding 4.1ghz you would see better multithreaded performance in apps and games that utilise more cores than a stock 1800x.
 
Davedree said:
If you buy a 1700 then you would need a manual overlock of 4.1ghz to equal an 1800x in synthetic and apps, but with the all cores holding 4.1ghz you would see better multithreaded performance in apps and games that utilise more cores than a stock 1800x.
Click to expand...

thats what I need to know, thanks.

can't decide if I need to wait on the 1600x or not, it might be the 1800x of the r5's meaning not as good for games as ocd 1700 if I buy now or 1600 if I wait
 
Davedree said:
For the 1800x out the box 3.6 base, boost 4ghz, The guaranteed advertised boost speed (4ghz is for one core) with Xfr a 100mhz offset is applied to the single core making it 4.1. All cores boost speed is 3.7ghz.
.
Click to expand...

Almost, Precision boost (up to 4.0Ghz) and XFR (the extra 100Mhz taking it to 4.1Ghz) are for dual core as well, not just single. There's also reports it actually kicks in for quad core with good cooling, not that I can find the damn article now!

Lemme search my history, only read it yesterday...
 
Spec-Chum said:
Almost, Precision boost (up to 4.0Ghz) and XFR (the extra 100Mhz taking it to 4.1Ghz) are for dual core as well, not just single. There's also reports it actually kicks in for quad core with good cooling, not that I can find the damn article now!

Lemme search my history, only read it yesterday...
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Sure no worries, although the Stilt will disagree with you. But I have seen the pic with plot scaling r7 1800x of all clocks speeds etc, xfr and then arrow points to (2 cores active) on the line above, but no-ones confirmed if it's two cores or one core and 1 smt core. So any new news is def welcome
 
Davedree said:
Sure no worries, although the Stilt will disagree with you. But I have seen the pic with plot scaling r7 1800x of all clocks speeds etc, xfr and then arrow points to (2 cores active) on the line above, but no-ones confirmed if it's two cores or one core and 1 smt core. So any new news is def welcome
Click to expand...
I'd certainly believe Stilt over my ramblings lol But yeah, I do notice he says "...and 4.1GHz maximum *single* core XFR ceiling (SCXFRC)". Perhaps some with an 1800x can run a dual core bench?

I've found the quote about quad core, but it's from a overclock.net forum (wasn't sure I could post link) so no idea of original source, it says: "...XFR has been observed to apply its frequency boost to up to four cores (eight threads) while gaming, though this is most likely due to buggy XFR support at the moment."
 
KompuKare said:
To be fair to Intel, that Computerbase article also shows that's it's only the mainstream CPUs which have this stuttering in Battlefield multiplayer. The Intel HEDT CPUs like i7-6850K performs only a little worse than the Ryzen 7 1800X

And the DX12 multiplayer results for Intel HEDT and the i7-7700K are actually a bit better than Ryzen's.
Unsure if it makes any real difference in gaming, but I guess that's why reason Intel were able to get big spender to buy HEDT for multi-GPU setups.
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I will say more cores imo are smoother in bf4 aswell, My old x58 rig is smoother with the 6 core xeon in it vs the 4core even despite my 4core clocking higher and given a few more max FPS.
Since i'm always doing more then just gaming i'd never buy another quad 6 cores is a Min for be and 8 would be better :)
 
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