AMD launches Zen+ 12nm Ryzen and X470 motherboards

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IRobot23

Senior member
Jul 3, 2017
601
183
76
I was quite surprise by stock cooling on my R7 1700, definitely AMDs solder and stock cooler are great for everyone.
 

eek2121

Diamond Member
Aug 2, 2005
3,051
4,276
136
Pinnacle Ridge AGESA (which is rolling out to all AM4 motherboards these days in preparation for Ryzen 2000 series launch) has finally fixed pstates, you can set them to whatever you want in BIOS without breaking any functionality. Then you can enable cstates (should be enabled by default, but it doesn't hurt to force them on) to let the hardware properly idle, and use an appropriate power plan in Windows.

Here's the result:



  • P0 is set to 3.8GHz and 1.375v (no LLC, droops down to ~1.31v under P95 AVX small FFTs load)
  • vSOC is set to 1.1v to support 3466MHz memory speed, vDIMM 1.425v
  • Ryzen Balanced power plan with CPU idle speed set to 0% instead of 90% because I'd like to let Windows use the entire clock speed range

See, proper idle (hwinfo managed to "detect" P3 at 0.4v) with overclocked speeds. You could more or less get the same result since launch day on the C6H with voltage offsets and other workarounds, but thankfully now it's much simpler and can be done on every board as far as I'm aware.



Anyway, having cstates enabled lets Ryzen take control of power management all by itself and that's what you want to do in this platform. Entering OC mode doesn't disable power savings.

https://www.reddit.com/r/Amd/comments/6w793f/how_to_reduce_idle_clock_speed_on_a_manually/



I'm old fashioned and that's why I take that 90% idle down to 0%, but it's not needed.


Obviously, power management this advanced is miles ahead of any faildozer part ever made, and Pinnacle Ridge is probably going to make even more improvements in this area.

Saw this post and tried it on my 1950x. Sure enough, 0% took it down to 2 GHz when idle. NICE!
 

cellarnoise

Senior member
Mar 22, 2017
729
399
136
Love my cheap 1700x, my msi b350 gaming pro carbon voltage droops bad when trying to overclocking the cpu. currently running 3200 cl14 ram at 3333 cl14 stiltz for many months. Afraid to upgrade bios after latest-est new processors. Read not good.

Very stable at stock CPU and O.C. ram. Does all our audio and video editing in enjoyable times. And pushing intel to better and better after many years of blah.......
 

Gideon

Golden Member
Nov 27, 2007
1,714
3,937
136
Some info about the CanardPC article from this thread.
JustFinishedBSG said:
Please buy CPC if you are French (online if possible because of their distributor problems... ) but:

According the CPC, the X470/B450 and X370/B350 chipsets are ENTIRELY IDENTICAL, they are literally renames. XFR2 Enhanced and Precision Boost only depend on the board but because not all old gen boards were up to spec AMD wanted to avoid a situation were some boards had XFR2/PrecBoost and some board didn't and decided to rebrand the chipset and impose more stringent standards.

Latencies should be really good, especially if these chips support 3466+ Mhz more widely. Precision Boost 2.0 also seems very nice (especially when considering that the benches were run on a A320 chipset:
 

moinmoin

Diamond Member
Jun 1, 2017
4,994
7,765
136
Are 'Precision Boost 2' freqency targets pre-programmed and static?
They are supposedly dynamic based on the headroom available. Though still restricted seeing how the leaked slides points to "XFR 2 Enhanced" and "Precision Boost Overdrive" unlocking even more headroom...



Going by that slide CanardPC's numbers should be using XFR 2 Enhanced.
 

ao_ika_red

Golden Member
Aug 11, 2016
1,679
715
136
Some info about the CanardPC article from this thread.


Latencies should be really good, especially if these chips support 3466+ Mhz more widely. Precision Boost 2.0 also seems very nice (especially when considering that the benches were run on a A320 chipset:
That's quite a hard work for A320 board.
 

DisEnchantment

Golden Member
Mar 3, 2017
1,687
6,243
136
Some info about the CanardPC article from this thread.


Latencies should be really good, especially if these chips support 3466+ Mhz more widely. Precision Boost 2.0 also seems very nice (especially when considering that the benches were run on a A320 chipset:

So with Precision Boost Overdrive and XFR 2.0 Enhanced we could see 4.5 GHz SC boost, when not thermal constrained?
Looks like low 60s ns Latencies possible at > 3200 MHz , tight timings?
With a faster RAM kit and 400 series board the review might have looked a bit different.

When I got my 1700X I had 97ns latency for two or three months XD, until I got it to work at 3200@CL14.
 
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Reactions: lightmanek

CatMerc

Golden Member
Jul 16, 2016
1,114
1,153
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So with Precision Boost Overdrive and XFR 2.0 Enhanced we could see 4.5 GHz SC boost, when not thermal constrained?
Looks like low 60s ns Latencies possible at > 3200 MHz , tight timings?
With a faster RAM kit and 400 series board the review might have looked a bit different.
No, all three modes have the same max clockspeed. XFR 2.O and Overdrive just increase the limits so that when you load more cores you don't lose as much frequency.
 

exquisitechar

Senior member
Apr 18, 2017
666
904
136
Very nice multi core performance improvement, the improved turbo is great. Power consumption doesn't seem that bad to me, it's a nice improvement over gen 1 Ryzens, especially when you take into account how the turbo boost is much higher for multiple cores. Gaming performance is a let down, not even a 4% improvement over the 1800X, but obviously we'll need to see a lot more in-depth testing.
 
Reactions: Gideon

Bouowmx

Golden Member
Nov 13, 2016
1,142
550
146
Which limits are in effect for Precision Boost 2 at low core counts? They don't include power because 2 cores at 4175 MHz using 105 W (the TDP) doesn't sound right?
 

CatMerc

Golden Member
Jul 16, 2016
1,114
1,153
136
Which limits are in effect for Precision Boost 2 at low core counts? They don't include power because 2 cores at 4175 MHz using 105 W (the TDP) doesn't sound right?
Temperature, Power, and "Reliability" whatever it means in practice.



Ryzen can currently push 40W through two cores, maybe 4.3 on two cores is like 60W-80W.
 
Reactions: Drazick

Kenmitch

Diamond Member
Oct 10, 1999
8,505
2,249
136
Now, you have to remember that CanardPC uses an A320 motherboard for testing.

You would think that a magazine about PC hardware would at least buy a proper X370 motherboard for testing.

Just consider it as a sneak peak if nothing else. It will be interesting to view and compare results from different chipsets once the NDA lifts and proper reviews drop.
 

Kenmitch

Diamond Member
Oct 10, 1999
8,505
2,249
136
Now, you have to remember that CanardPC uses an A320 motherboard for testing.

You would think that a magazine about PC hardware would at least buy a proper X370 motherboard for testing.

Just consider it as a sneak peak if nothing else. It will be interesting to view and compare results from different chipsets once the NDA lifts and proper reviews drop.

Why is SMT off in the chart with turbo clocks?
 

DisEnchantment

Golden Member
Mar 3, 2017
1,687
6,243
136
How are these guys even publishing stuffs like this? They got their sample from someone else so no NDA?
I understand the need to get the review out, but it such a weird thing, publishing data but withholding something because of not wanting to show everything but already disclosing anyhow. Then using a Low end board for a high end part? That too in print when you want to get first coverage ?
Also that choice of games...
I cannot fully understand this Canard PC.
 
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