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GPU stuttering, usage drops in game

prjwebb

prjwebb

prjwebb

Associate
Joined
29 Jun 2016
Posts
825
I've been having issues with my system when gaming, bad frame times and stuttering. I've been using Afterburner to monitor things and my GPU usage is spiking up and down from 100% to anything as low as 0% as the stutters occur.
First thought was thermal throttling, but temps are all fine, and second was a CPU bottle neck...

I've recently rebuilt my rig, switching from a i5 6600K, Z170 S Sabertooth and 16GB 2400mhz Crucial Ballistix Sport DDR4 to a R5 1600, Aorus Gaming 5 board and 16GB 3200mhz G Skills Trident Z DDR4. With the newer system I'm convinced that it's not a CPU bottle neck.

I've reformatted the system and done a fresh install with minimal software and latest drivers over the last couple of days. The problem persists.

The only things that have remained constant in the system are the Superflower Leadex 650W Gold PSU and my Sapphire Nitro Fury, as well as the SSD drives.
Any ideas what my problem could be?
 
nashathedog said:
You shouldn't need to bother with Clock Blocker, When AMD first introduced the power efficiency button there was a problem which required clock blocker but that was fixed over a year ago, I have it turned off and my Fury runs fine.
I'd be more inclined to look at the cpu if turning power efficiency off does not help. it's more likely to be a compatibility issue of some sort. Try things like a lower ram speed too. Latest motherboard bio's?
Click to expand...

Yeah latest bios, power efficiency off, same issue with my old 2400mhz RAM. Same issue with my old 6600k.
 
Phixsator said:
What driver version are you using for your fury? how long has the problem persist? has it happened over multiple driver versions? if so which ones?
Click to expand...
I'm on the latest but I've tried a bunch of different ones.

The worst offender is the Division, but I tested Overwatch and had the issue there too. Even in Heaven and Valley to a lesser degree.
 
Yeah I've got the issue in DX11 also. Sometimes it gets so bad that it's pretty much unplayable. Really frustrating as I figured it was my 6600K not having enough cores to keep up in resource heavy areas in Division, but same issues on the 1600.
 
Not entirely sure what I did, but things are running really nicely in Overwatch now, really responsive, smooth and stable maybe the best I've had it feeling. No big dips in GPU usage and stable 200fps.
I had a quick test in Div before and that seemed like the GPU usage was solid, but I was running higher settings than normal trying to keep the load there so my overall FPS was a bit lower than I'd like it.
 
Toss3 said:
A fluctuating BCLK would cause stuttering and massive latency-spikes. Check with latencymon and make sure you have the BCLK set to 100 and spread spectrum to auto/disabled (if you are still seeing latency-spikes you can try a low % setting). Had issues with stuttering before and never knew it could be the result of an uneven BCLK (at least on my board).
Click to expand...

Oh interesting. I can't actually adjust BCLK on my AM4 board atm, but it does fluctuate ever so slightly.
 
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