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Strange R9 290 Usage Activity

Silentghost14
By Silentghost14
in Graphics Cards
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Close Warframe, minimize Afterburner and monitor GPU-Z with just its Render Test running.

You can start Render Test on the first tab of GPU-Z, by clicking on the blue ? beside the Bus Interface reading. You do not have to render in fullscreen unless you have multiple cards.

With the test running monitor the GPU Clock, Memory Clock, GPU Load and VDDC.

GPU Clock and Memory Clock should peak out at your OC settings and remain constant. GPU Load should be always 98-100%, and VDDC should not fluctuate by any large amount (0.05V is large)

 

If you have any sort of vsync and framecap enabled, they can cause GPU usage to go everywhere. Because it will have to keep adjusting to the scene to produce the right # of frames.

Could not sleep but ill try again. Alright here is whats happening and why i thought things were strange. So i miss understood precisely how v-sync worked. I knew it locked the gpu to 60fps but it skipped my mind that if the card was locked at a frame rate of 60fps then the usage would not be 100% thus the card is using only the required resources to render only 60fps and would repeat this. Gpuz has a preset in seconds whenever it refreshes to take readings. When i had my HD 6950 the card was taking equal or greater the time of the gpuz preset refresh rate to render 60fps. So it appeared to fluctuate usage which i thought was normal but not jump around like the R9 290. Now that i am running the R9 290 because it is so much more powerful in comparison it renders 60fps in less time then the refresh rate of gpuz making the usage bounce around accurately depicting whats actually happening because its not doing anything more often. 

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So i decided it was time for me to upgrade for my aging HD 6950 GPU to a new R9 290. I just go it today and noticed something i cant make much sense about. The cards usage seem to be flying all over the place for no reason i can find. Its does not appear to be bottlenecking or overheating. Is the card just meant to run this way? I have recorded a 30 second video to show what happening using warframe running in the background with a fps counter. Any help would be appreciated.

 

P.S It late were i am so i wont respond to any reply's till morning. Im not ignoring you.  

 

 

https://www.youtube.com/watch?v=iRDMP96vUV8&feature=youtu.be

 

My specs - http://www.overclock.net/lists/display/view/id/5297396

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Close Warframe, minimize Afterburner and monitor GPU-Z with just its Render Test running.

You can start Render Test on the first tab of GPU-Z, by clicking on the blue ? beside the Bus Interface reading. You do not have to render in fullscreen unless you have multiple cards.

With the test running monitor the GPU Clock, Memory Clock, GPU Load and VDDC.

GPU Clock and Memory Clock should peak out at your OC settings and remain constant. GPU Load should be always 98-100%, and VDDC should not fluctuate by any large amount (0.05V is large)

 

If you have any sort of vsync and framecap enabled, they can cause GPU usage to go everywhere. Because it will have to keep adjusting to the scene to produce the right # of frames.

Could not sleep but ill try again. Alright here is whats happening and why i thought things were strange. So i miss understood precisely how v-sync worked. I knew it locked the gpu to 60fps but it skipped my mind that if the card was locked at a frame rate of 60fps then the usage would not be 100% thus the card is using only the required resources to render only 60fps and would repeat this. Gpuz has a preset in seconds whenever it refreshes to take readings. When i had my HD 6950 the card was taking equal or greater the time of the gpuz preset refresh rate to render 60fps. So it appeared to fluctuate usage which i thought was normal but not jump around like the R9 290. Now that i am running the R9 290 because it is so much more powerful in comparison it renders 60fps in less time then the refresh rate of gpuz making the usage bounce around accurately depicting whats actually happening because its not doing anything more often. 

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