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Help with GPU clock of Radeon 7870 (high performance mode issue)

post #1 of 7
Thread Starter 
Hey everyone.

Just bought my first good graphics card tonight.

Background: I'm into film scoring. I dont do gaming. Just needed something more than capable of playing my films smoothly to score.


I installed it with no problems. Updated to the latest Catalyst drivers and control center. I'm noticing that this hasnt been an immediate improvement over my Radeon 5450... and i'm pretty sure I see why. The GPU clock speed refuses to increase when i'm running the video. My DAW uses a built-in quicktime wrapper to run the video. And this 7870's GPU clock is stuck on 300mhz.

I've gone into the software and bumped it to a max overclock of 1100mhz. I also did the same in MSI Afterburner. Nothing... it refuses to increase the GPU, and it says that it needs to be in High Performance Mode to activate the overclock.

The problem is.. i dont do gaming. and apparently my audio DAW's video playback does not activate High Performance Mode. So i feel stuck here. I did notice that it will bump the GPU clock up to 450mhz when I run a YouTube video and keep "Hardware acceleration" clicked on. And I noticed it even jumped to 1000mhz for a split second when I was starting my DAW and it checked for quicktime. So the card clearly works, and probably works amazing for gaming, once the High Performance Mode is kicked in. But how exactly can i get it turned on here?

I researched and heard that turning off hardware acceleration in Win 7 could do the trick.... but that option is completely greyed out for me for some reason, so i cant even try it. And come to think of it.... i think this may in fact be the issue with my previous video card. Because I tried to overclock that also but I specifically remember the GPU clock not budging.


I'm inclined to return this and leave AMD Radeon cards all together, b/c they dont seem to fit my purposes. If i jump ship and go to a NVidia GTX 660.... will I have similar problems getting it to produce a good clock speed for my video playback? I'm going to reach out to ASUS to see if i can get some advice from them, but i doubt it.


System:
i7 3820 (will be a 3930K in 2 days! woot!)
ASUS P9X79 Pro
32 GB RAM
Samsung Pro 128GB ssd (OS)
Sandisk Ultra Plus 256GB (data, read only)
ASUS Radeon HD 7870
RME Fireface UCX audio interface


Would one of those "Professional Graphics Cards" perform how i expect it to?

I feel like i'm screwed w/ video b/c i'm not a gamer at the moment. Maybe i just purchased the wrong product. I'm okay with that if that's he case, that's why i buy from local stores.. so i can return and try again. I really want this to work out.. so I'd be very appreciate of any help. Please don't just respond with "What are your codecs".. "Maybe something is wrong w/ your setup" etc... i've been through that. The video file is an 13GB .MOV file, 1920 x 1080 res, 29 frame/sec, 8mbps film. I don't see why I should still have video stuttering on playback in my DAW now that i have a 7870 installed and operating. Even if a codec was inefficient.. i'm sure this 7870 would still bully through the playback if the GPU clock speed was able to be set to a respectable level. 300mhz sounds like nothing. I think my 5450 was set to 200mhz, and interestingly enough.. i noticed a very small improvement in playback with just that 100mhz difference in GPU clock.


So yeah.... should i jump ship and try Nvidia? Or will i experience the same thing? Or is there i way i can get this working so i dont have to make another trip to the store and do a swap?

Thanks
Edited by CPhoenix - 7/10/13 at 10:41pm
post #2 of 7
Thread Starter 
Also.. please go easy on me if you can.

I completely don't know what I'm doing here and am admitting it upfront. I know a 7870 may sound like overkill... i'm okay with overkill.. i actually like overkill. Means I can make one purchase and be done with it.. especially since i dont game.

I'm confident my video playback issues will be solved with a properly clocked graphics card... but this just seems impossible with the Radeon cards the more i look into it. Is NVidia the same?


Again... i can easily return this thing and swap.. so please let me know of something in that $200 price range that will perform at a good clock speed without any weird workarounds.
post #3 of 7
You can force constant voltage in the afterburner settings, it will keep the card from down clocking too 2D clocks/voltage
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RedCraze
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post #4 of 7
i would have got the 760 instead of the 7870 - the difference in price is negligible thumb.gif


source
post #5 of 7
Thread Starter 
Quote:
Originally Posted by ladcrooks View Post

i would have got the 760 instead of the 7870 - the difference in price is negligible thumb.gif


source

Haha, thanks. But at $100 I'm not willing to go up that high. Was hoping the $200 range cards would be enough for me needs. We'll see after I can get the GPU clock respectable though.

Quote:
Originally Posted by huhh View Post

You can force constant voltage in the afterburner settings, it will keep the card from down clocking too 2D clocks/voltage

This makes sense. I guess the right about of juice to it will trigger this "High performance Mode" it's refering to. I will have to Google how to do this in afterburner.

Any recommendations on what's a safe voltage range? I'm totally unfamiliar here.
post #6 of 7
It should just raise it to your cards stock 3D clocks and voltage. If you plan on overclocking on air I wouldn't go past 1.26v for 24/7 usage.
RedCraze
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RedCraze
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post #7 of 7
Quote:
Originally Posted by CPhoenix View Post

Haha, thanks. But at $100 I'm not willing to go up that high. Was hoping the $200 range cards would be enough for me needs. We'll see after I can get the GPU clock respectable though.
This makes sense. I guess the right about of juice to it will trigger this "High performance Mode" it's refering to. I will have to Google how to do this in afterburner.

UK prices different - sorry biggrin.gif
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