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Ryzen "2" ?

A bit of an update for those interested, I've been trying a bit of Vcore undervolting using the Taichi offset BIOS option. I've set -0.05 Vcore and so far everything is still working fine, with my max single core turbo frequency still reaching 4350Mhz.

The interesting part is that when it comes to all cores max frequency while on load I am now seeing 3975Mhz vs 3950Mhz before (for instance while running Cinebench).
In games using 8 cores I am now seeing 4025-4050Mhz on load compared to 3950-3975Mhz before. I believe it all has to do with the turbo logic and its operating parameters. As the Vcore reduction has allowed me to gain a couple of degrees on load the Core Performance Boost & XFR 2.0 functions are pushing the frequencies higher.

Will continue testing but it's clear that power and temperature play an important role in how AMD have implemented their new turbo on the Ryzen 2xxx series.
 
Last edited:
Chewie said:
A bit of an update for those interested, I've been trying a bit of Vcore undervolting using the Taichi offset BIOS option. I've set -0.05 Vcore, so far everything is still working far with my max single core turbo frequency still reaching 4350Mhz.

The interesting part is that when it comes to all cores max frequency while on load I am now seeing 3975Mhz vs 3950Mhz before, that is for instance while running Cinebench.
In games using 8 cores I am now seeing 4025-4050Mhz on load compared to to 3950-3975Mhz before. I believe it all has to do with the turbo logic and its operating parameters. As the Vcore reduction has allowed me to gain a couple of degrees on load the Core Performance Boos & XFR 2.0 functions are pushing the frequencies higher.

Will continue testing but it's clear that power and temperature play an important role in how AMD have implemented their new turbo on the Ryzen 2xxx series.
Click to expand...

Very interesting indeed. Puts overclocking in a new category. Less power - more speed.

I'm a great fan of under volting, wish I had a 2700x to try it on :).
 
TrixP10 said:
Very interesting indeed. Puts overclocking in a new category. Less power - more speed.

I'm a great fan of under volting, wish I had a 2700x to try it on :).
Click to expand...

It is because the manufacturer (AMD or Intel) always sets higher voltage than the needed one. It is absolutely normal and has been observed for ages.
 
TrixP10 said:
Very interesting indeed. Puts overclocking in a new category. Less power - more speed.

I'm a great fan of under volting, wish I had a 2700x to try it on :).
Click to expand...

This is what Vega was doing, you could get it going faster if you pulled in some of the voltage, it did work and there was substantial increases to be had.
 
Just tried bclk 101, to see what would happen, and it seems to work just fine. Slight performances increase overall and max boost frequency achieved is now 4392.9Mhz.

Note that this is still with the -0.05 Vcore offset applied.
 
Chewie said:
A bit of an update for those interested, I've been trying a bit of Vcore undervolting using the Taichi offset BIOS option. I've set -0.05 Vcore and so far everything is still working fine, with my max single core turbo frequency still reaching 4350Mhz.

The interesting part is that when it comes to all cores max frequency while on load I am now seeing 3975Mhz vs 3950Mhz before (for instance while running Cinebench).
In games using 8 cores I am now seeing 4025-4050Mhz on load compared to 3950-3975Mhz before. I believe it all has to do with the turbo logic and its operating parameters. As the Vcore reduction has allowed me to gain a couple of degrees on load the Core Performance Boost & XFR 2.0 functions are pushing the frequencies higher.

Will continue testing but it's clear that power and temperature play an important role in how AMD have implemented their new turbo on the Ryzen 2xxx series.
Click to expand...
That's pretty cool. Because the chips essentially overclock automatically and have barely any manual overclocking headroom, undervolting gives them more TDP breathing space for clocking themselves.
 
Chewie said:
Just tried bclk 101, to see what would happen, and it seems to work just fine. Slight performances increase overall and max boost frequency achieved is now 4392.9Mhz.

Note that this is still with the -0.05 Vcore offset applied.
Click to expand...
So what's the single core score now?:)
 
Chewie said:
Just tried bclk 101, to see what would happen, and it seems to work just fine. Slight performances increase overall and max boost frequency achieved is now 4392.9Mhz.

Note that this is still with the -0.05 Vcore offset applied.
Click to expand...

Have you tried any further under volting :)?

(Mine should arrive today, will also try it :p)
 
I think this is a good review of the boost performance of the 2700x.


On Sunday I was wrong & a bit quick to jump on AMD over the rated speeds, That said I wasn't completely wrong as reviews like the one above show, It's just matters a lot less than I thought it would.
AMD needs to stop thinking it's a numbers game as Ryzen does not need to be pushing higher clock speeds that are closer to Intel's to be competitive. I think that clock for Clock Ryzen's architecture is better so they should stop worrying about the difference on paper and be more conservative with the claimed figures, All they need to do is let Ryzen's performance speak for itself.

Disappointingly my memory has had to be dropped from 3200 to 3000 mhz with the 2700x, In comparison I never had a single problem running my 3200mhz memory at that speed with my 1600x, That was because I never bought into Ryzen until October last year and by then all the memory issues Ryzen had on release had been ironed out making it a simple plug and play experience for me. I'm presuming another motherboard bio's update will be needed, I just hope Asus get on with it and don't leave it for ages due to it being one of the low end boards (Prime B350-M). I found that at 3200mhz Fallout 4 (Which I've been playing over the last week) would crash within a minute every time I tried to run the game but fortunately I've not had a single crash since dropping the memory speed down to 3000mhz so I can wait. I haven't tried any other games at the moment but hopefully it'll be okay now it's at 3000mhz.
 
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