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AMD CPU slowing down clocks when starting emulation
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AMD CPU slowing down clocks when starting emulation
10-05-2014, 05:15 AM
#1
FIPOLINIO
Unregistered
 
So I have decent FPS when playing The Legend of Zelda: Wind Waker, in some areas stable and normal 30 FPS and some others decreasing to 26 or so...but just for curiosity I opened up AMD Overdrive to see my CPU clock speeds when using the emulator and I noted that they were going down a lot from the moment I start to emulate a game.

This are my normal CPU speeds.
https://imageshack.com/i/eyrbwbdYp

And this are when I start emulation.
https://imageshack.com/i/f0qwECbMp

Any help or tips about this problem?
Thank you.

My Specs.
Windows 7 X64
8GB RAM
AMD A8-5557M @2.1GHz - 2.8GHz Turbo
AMD 8550G GPU
I have all latest drivers and updates installed.
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10-05-2014, 05:21 AM
#2
Shonumi Offline
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I know for a fact that Intel's CPUs will scale back their clocks to reduce heat; I'm not familiar with AMD CPUs, but it might be doing the same thing.

What are your temperatures before emulation and then during emulation?
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10-05-2014, 05:52 AM
#3
DJBarry004 Offline
Don't even bother...
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I also have an APU and the clocks don´t get lowered even if getting some heat (or at least, not too much) during large gameplay periods.
Rig 1: Windows 10 Home | AMD A6-1450 @ 600/1000/1400 MHz | AMD Radeon HD Graphics 8250 | 4GB RAM | HP Pavilion TouchSmart 11.

Rig 2: Windows 10 Pro | Intel Core i7-2640M @ 780/2800/3500 MHz | Intel HD 3000 Mobile | 8GB RAM | Dell Latitude 6320.
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10-05-2014, 06:04 AM
#4
DatKid20 Offline
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This is a laptop. Ofc the heat would cause it to throttle.
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10-05-2014, 09:02 AM
#5
admin89 Offline
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Install Coretemp and GPU-Z then tell us the temp of your CPU and GPU when Dolphin is running (Youmust leave Dolphin running for 10 minutes or longer)
Laptop: (Show Spoiler)
Clevo W230SS : 3200x1800 IPS | i7 4700MQ @ 3.6GHz (Intel XTU + Triple fan mod) | GTX 860M GDDR5 | 128GB Toshiba CFD SSD | 16GB DDR3L 1600MHz
Aspire 715 43G : 1080p 144Hz |  R5 5625U @ 4.3GHz | Nvidia RTX 3050 4GB | 500GB WD SSD  | 16GB DDR4 3200MHz 
Mini PC :: (Show Spoiler)
G3258 @ 4.6GHz | ELSA GTX 750 | Asrock Z87E ITX | 600W SFX 80+ Gold Silverstone + SG06-LITE | Corsair Vengeance 8GB 2000MHz | Scythe Kozuti + Ao Kaze | 45TB 2.5" Ex HDD (in total) , Zelda Gold Wiimote , LE Wii Classic Controller , Gold LE PS3 DualShock , BlackWidow Chroma ,
Now Playing : Xenoblade Definitive Edition on Yuzu - Switch Emu 

 
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10-05-2014, 09:31 AM
#6
FIPOLINIO
Unregistered
 

(10-05-2014, 09:02 AM)admin89 Wrote: Install Coretemp and GPU-Z then tell us the temp of your CPU and GPU when Dolphin is running (Youmust leave Dolphin running for 10 minutes or longer)

The temperature of the GPU is 40 -43 Celsius

I just discovered reading some comments on another site, that if I disconnect my laptop from the charger it will run it better, and it does....

I don't know why it performs better with the charger not connected... any ideas?
Also it does not only increases the speed of dolphin...but also of all my other pc games...this is really strange....

For example, in Borderlands 2 I tested playing around an area that gave me 28-35 fps when looking around and being there, and with the charger disconnected it now gives me around 45-56 fps.

I don't know why this is happening.
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10-05-2014, 09:46 AM
#7
KHg8m3r Online
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You should be getting better speed when your charger is plugged in. Are you running in a high performance power plan in Windows Power Management?

What I can think of is when you have it plugged in you have it in balanced mode, and in unplugged its in high performance.
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10-05-2014, 10:57 AM
#8
FIPOLINIO
Unregistered
 
(10-05-2014, 09:46 AM)KHg8m3r Wrote: You should be getting better speed when your charger is plugged in. Are you running in a high performance power plan in Windows Power Management?

What I can think of is when you have it plugged in you have it in balanced mode, and in unplugged its in high performance.

I have it at high performance when plugged in, now this is the problem it seems...that the laptop runs better when not plugged in to the charger.
My laptop is an Acer Aspire V5 552 by the way

(10-05-2014, 10:57 AM)FIPOLINIO Wrote:
(10-05-2014, 09:46 AM)KHg8m3r Wrote: You should be getting better speed when your charger is plugged in. Are you running in a high performance power plan in Windows Power Management?

What I can think of is when you have it plugged in you have it in balanced mode, and in unplugged its in high performance.

I have it at high performance when plugged in, now this is the problem it seems...that the laptop runs better when not plugged in to the charger.
My laptop is an Acer Aspire V5 552 by the way

I found the solution! (I hope) so messing with all the settings of the power plan one by one, I found out that under ATI Graphics power settings and then ATI power play settings, changing plugged in: from maximize performance to maximize battery life solved the problem, now I can play constantly 30 FPS Zelda Wind Waker. I hope this helps anyone else!

Edit: Doing some more testing....it only solves the problem for dolphin...as it stabilizes the cores of the cpu, but using its default clock at 2.1 GHz. Still better performance when unplugged for all other games.
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10-05-2014, 12:19 PM
#9
Fiora Offline
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Could the problem have been that the integrated GPU was stealing power away from the CPU, since they share the same TDP envelope?
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