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4K Youtube video GPU usage

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Jan 31, 2012
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System Name PLAHI
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Greetings all,

I can't post a screenshot now, but I can put in words. So yesterday I left open the windows task manager at the resource tab, just to check out some game usage.

After that I played a 4K video on Youtube and the GPU usage for my RX6800XT was about 68%. Am I reading this right? Is it possible?

I will say it slowly: 4K video on standard bitrate (I don't have Youtube premium) on the systems specs in my signature on a 4K@60mhz monitor needs ~70% of a RX6800XT?!?

Most of the games in my library maxed out don't use that much. Am I missing something? Is that "normal" ? Is it a codec that I am missing?
 
After that I played a 4K video on Youtube and the GPU usage for my RX6800XT was about 68%. Am I reading this right? Is it possible?
it was an issue on rdna2 when it launched, but I thought it has been fixed.
Screenshot 2025-07-07 091708.png

Are you using the latest drivers ?
 
Greetings all,

I can't post a screenshot now, but I can put in words. So yesterday I left open the windows task manager at the resource tab, just to check out some game usage.

After that I played a 4K video on Youtube and the GPU usage for my RX6800XT was about 68%. Am I reading this right? Is it possible?

I will say it slowly: 4K video on standard bitrate (I don't have Youtube premium) on the systems specs in my signature on a 4K@60mhz monitor needs ~70% of a RX6800XT?!?

Most of the games in my library maxed out don't use that much. Am I missing something? Is that "normal" ? Is it a codec that I am missing?
What was the power usage?
 
My 6950XT does not do this. It clocks up to like 50 Mhz and a 2-6% load, according to GPU-Z.

But yeah double check power, clocks and temps.
 
wait wait, what browser that you use?
have you tried another browser, just to check?
 
wait wait, what browser that you use?
have you tried another browser, just to check?

Yeah was gonna add this too. I use Firefox, Windows 10 btw.
 
The card must not be downclocking. Look at core/memory clocks im desktop mode. Are you using a single monitor or more ?
Two monitors with display port - > models listed in my signature
wait wait, what browser that you use?
have you tried another browser, just to check?
I tried Edge and Opera, both are basically Chromium and it was the same. I guess I could try with Firefox and Brave or LibreWolf?
 
It's 70% of the video decoder. Click on the gpu tab and you will see. The main field on the left shows the largest percentage of any component of the gpu, not the overall usage. Also if the video is 4k AV1 it does stress rdna 2 gpus a bit more than the nvidia counterparts. As an example (intel arc):
 

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It's 70% of the video decoder. Click on the gpu tab and you will see. The main field on the left shows the largest percentage of any component of the gpu, not the overall usage. Also if the video is 4k AV1 it does stress rdna 2 gpus a bit more than the nvidia counterparts. As an example (intel arc).

Today I learned you can change what is shown in those graphs! Pretty cool. I assume how it works depends on the GPU? Video Codec 0 is the only one that shows any significant load, and it still shows 0%.

1751893627342.png
 
After that I played a 4K video on Youtube
You made me lowkey jealous. Our gov't dealt a healthy share of damage to YT accessibility and best I can hope for is usually 1080p. 1440p lags, 4K is almost always a <5 FPS mess.

But yes, double figures on the decoder is fine. If it's 70% total load then something is off.
 
It's 70% of the video decoder. Click on the gpu tab and you will see.
+1 as @Frick . @Youseethis , you just blew my mind :D OK, I will check all this when I get home, but I assume you are 100% right and my literacy wasn't enough :)

@Macro Device , most of the time you don't need it. I mean I think, it's quite wasteful to have 4K cooking videos for example :D. All will be back to normal hopefully soon.
 
@Youseethis, you are absolutely right, it was the video codec. I just learned something new. Thank you.

Attaching screenshots. I got the wattage right though:) With the video playing is 50W, with just idling on the desktop is ~15W.

Video Codec usage.png Power draw.jpg
 
You are welcome :) . By the way a 7900 xtx goes to 105w with 8k@60 av1 and a 4090 to around 70w. Rdna 2 can't do 8k@60 av1 (I think any 8k av1). 4k@60 av1 much lighter.
 
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