Topic Title: Low GPU Usage when gaming with Low FPS 7870
Topic Summary: GPU usage never hits 95-99 without maxing out the game completely
Created On: 04/11/2014 07:35 PM
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 04/11/2014 07:35 PM
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Danoded
Peon

Posts: 8
Joined: 03/27/2014

When playing most games my GPU usage idles around 50-70 and rarely goes into 80 and never into 90. I have a Sapphire 7870 GHz Edition and it's driving me crazy that the GPU usage is not staying at 99 constantly. Here is an image of the GPU Usage and my CPU utilisation while I was playing AC:IV at high without AA 

 

http://imageshack.com/a/img811/4633/tu1n.jpg

 

Heat is definitely not an issue here, I have the latest 14.3 drivers installed, my PSU is more than enough so I am really stuck on what could be causing the GPU never to hit 99 or even 80 in most cases. I've tried rolling back drivers, but that didn't help. It is definitely not a CPU bgottleneck and I've tried overclocking it to 4.00 GHz to no avail. I've tried setting the power limit to +/- 20%, but that hasn't made a difference. I've tried overclocking my GPU, but that didn't make a difference either. 

 

ONLY WHEN THE GAME IS MAXED OUT DOES IT STAY AT 99 but it is useless since it is barely playable by then

 

My other system specs are:

 

CPU-FX 4130 3.8GHz (Zambezi)

MOBO-Biostar A960D+

PSU- Corsair CX600M 

RAM-8gb DDR3 1333Mhz

 04/11/2014 08:16 PM
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Danoded
Peon

Posts: 8
Joined: 03/27/2014

Can someone PLEASE help me with this

 04/11/2014 10:28 PM
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Thanny
Alpha Geek

Posts: 1460
Joined: 07/13/2009

It's a CPU bottleneck.  AC3 and AC4 are both CPU limited (more so the former than the latter).  There are no processors that would not be CPU bound in those games.

 

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