GPU Usage Fluctuating

[FTW_Perverse]

So here are my rig specs...

 

CPU = AMD FX-8350 OC @ 4.6GHz

CPU Cooler = Corsair H80i Push/Pull

MOBO = Gigabyte GA990FXA-UD3

GPU = 2 - EVGA 2GB 660Ti FTW in SLI

RAM = 16GB Corsair Vengeance @ 1600MHz 

PSU = Kingwin KX-1000W

SSD 1 = 120GB Kingston HyperX (OS)

SSD 2 = 120GB Crucial M500 (Games)

HDD = 1TB WD Green 7200RPM 64MB Cache (Storage)

OS = Win 8.1 64Bit

Case = CM Storm Scout 2 Advanced

MS = Gigabyte 1600dpi Optical

 Monitor = 24" Asus VG248QE @ 144Hz

2nd Monitor = 27" Asus VS278Q-P @ 60Hz 

 

See below screenshot showing fluctuating GPU usage while playing BF3.  This fluctuation is NOT exclusive to BF3.  Happen on all games, just some worse than others.  The result is choppy gameplay and stutter.  

 

 

What do you think is the issue here?  Maybe the Nvidia cards aren't playing nice with the AMD CPU/MOBO?  Or maybe my CPU/MOBO prefer an AMD card?  

 

Do you think a different AMD MOBO would solve this issue?  I've heard there are numerous issues with this version of Gigabytes MOBO.

 

Please let me know your thoughts on this guys.  

[M-ursu]

"You do not have permission to view this image"

I think thhat it is normal, because you have SLI confiquration

[Alterlai]

As long as it isn't causing you any lag or anything it's fine. I think this happens to pretty much all GPU's.

[FTW_Perverse]

"You do not have permission to view this image"

I think thhat it is normal, because you have SLI confiquration

 

Sorry about that.  Should be viewable now. 

 

Even when I disable SLI and had just one card in, the GPU usage was still fluctuating.

[dtronicsuk]

hey

 

what your experiencing is a few things (or maybe one of them)

 

either

 

1. you have a bottleneck in your system - doubt it be this to be honest

2. badly made game engine - quite possibly its EA after all

3. bad or wrong/outdated video drivers - try updating/reinstalling your video drivers

4. gpu overheat

5. bad overclock

 

also dont forget not all games support sli/crossfire

[othertomperson]

What FPS are you getting with these usage drops? Is V-sync on? Your overall CPU usage is fine, but what about each core specifically? One core sitting at 100% usage is a bottleneck no matter how idle the other cores are.

[Norwegiantweaker]

So here are my rig specs...

 

CPU = AMD FX-8350 OC @ 4.6GHz

CPU Cooler = Corsair H80i Push/Pull

MOBO = Gigabyte GA990FXA-UD3

GPU = 2 - EVGA 2GB 660Ti FTW in SLI

RAM = 16GB Corsair Vengeance @ 1600MHz 

PSU = Kingwin KX-1000W

SSD 1 = 120GB Kingston HyperX (OS)

SSD 2 = 120GB Crucial M500 (Games)

HDD = 1TB WD Green 7200RPM 64MB Cache (Storage)

OS = Win 8.1 64Bit

Case = CM Storm Scout 2 Advanced

MS = Gigabyte 1600dpi Optical

 Monitor = 24" Asus VG248QE @ 144Hz

2nd Monitor = 27" Asus VS278Q-P @ 60Hz 

 

See below screenshot showing fluctuating GPU usage while playing BF3.  This fluctuation is NOT exclusive to BF3.  Happen on all games, just some worse than others.  The result is choppy gameplay and stutter.  

 

 

 

What do you think is the issue here?  Maybe the Nvidia cards aren't playing nice with the AMD CPU/MOBO?  Or maybe my CPU/MOBO prefer an AMD card?  

 

Do you think a different AMD MOBO would solve this issue?  I've heard there are numerous issues with this version of Gigabytes MOBO.

 

Please let me know your thoughts on this guys.  

happends to me in crossfire. pretty sure its just normal

[FTW_Perverse]

What FPS are you getting with these usage drops? Is V-sync on? Your overall CPU usage is fine, but what about each core specifically? One core sitting at 100% usage is a bottleneck no matter how idle the other cores are.

 

None of the cores are bottlenecked.  All of them are maybe just of 50% usage under load.  V-sync is NOT on.  FPS is all over the place, directly related to GPU usage.  Sometimes dips below 50FPS, but I know these cards have the horsepower...