- Dec 29, 2016
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- 1,510
I recently purchased a Strix RX 480 8GB to go with my 8320 to replace my 270x that ran great
I'm experiencing weird spikes in GPU usage (shown in GPU Tweak Tool II and Wattman Global), from 100 to 0 during gameplay as well as lower frames than expected across multiple titles.
https://www.youtube.com/watch?v=9nimZe-VtXM
This guy gets >70 at higher settings than me (I'm at 1080p with AA turned down and a few settings on medium) and I get between 30 and 60.
We get similar CPU usage but I look to be getting a CPU bottleneck.
In Overwatch Epic I was getting between 45 and 70 in fights but I overclocked and now I'm getting around 60 with dips to 55 with vsync on.
Also in Shadow Of Mordor I get the same spikes (on Ultra) and my FPS (vsync on) fluctuates from 55 to 60 (55 during these spikes)
I took a pic of Wattman during gameplay
(https://a.fluntcaps.me/ylnza.png)
during this my CPU in task manager was sitting around 40%
I've checked and my PSU should be enough, PCIE 2.0 x16 slot should be fine and my temps don't get above 60C anywhere.
I've also used AMD's uninstall tool and DDU to wipe and reinstall drivers, currently on 16.6
Full Specs:
Worth noting I am running (have plugged in) 3 monitors and an Oculus Rift DK2 (sits switched off), could that have any bearing?
Any ideas? I'm at a loss really...
I'm experiencing weird spikes in GPU usage (shown in GPU Tweak Tool II and Wattman Global), from 100 to 0 during gameplay as well as lower frames than expected across multiple titles.
https://www.youtube.com/watch?v=9nimZe-VtXM
This guy gets >70 at higher settings than me (I'm at 1080p with AA turned down and a few settings on medium) and I get between 30 and 60.
We get similar CPU usage but I look to be getting a CPU bottleneck.
In Overwatch Epic I was getting between 45 and 70 in fights but I overclocked and now I'm getting around 60 with dips to 55 with vsync on.
Also in Shadow Of Mordor I get the same spikes (on Ultra) and my FPS (vsync on) fluctuates from 55 to 60 (55 during these spikes)
I took a pic of Wattman during gameplay
during this my CPU in task manager was sitting around 40%
I've checked and my PSU should be enough, PCIE 2.0 x16 slot should be fine and my temps don't get above 60C anywhere.
I've also used AMD's uninstall tool and DDU to wipe and reinstall drivers, currently on 16.6
Full Specs:
PSU:
Corsair CX 500 (getting 11.9, 5.017, 3.118 according to HWMonitor [should 3.118 be a concern? It's out of spec?])
M5A97 R2
AMD FX-8320, stock cooler. (Problem present at stock clocks, now clocked at 4.44 though with slight overvolt)
2*2GB 1333 Kingston in Dual Channel (installed in attempt to fix problem, made no difference)
1*8GB Ripjaws 1600
Windows reports RAM running at 1066Mhz
RX 480 8GB Strix
120GB Sandisk SSD for windows and swap
500GB Seagate 2.5" 5200RPM for the games
Worth noting I am running (have plugged in) 3 monitors and an Oculus Rift DK2 (sits switched off), could that have any bearing?
Any ideas? I'm at a loss really...
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