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GPU Usage jumps / Microstutter

Question asked by renold on Dec 27, 2015

I just recently bought a Sapphire R9 380 Nitro 4GB, and swapped out my old Radeon 6950 for it. However, now when I run games I can see in Afterburner that my GPU usage is jumping rapidly between 100% and 0%. I've done multiple clean wipes and re-installs of drivers, and I've adjusted some settings in games which has improved this by a little, but it still happens. In addition, in games when this happens, it's very noticeable as microstutter even though my framerate is pretty constant. Any solutions? I really want to keep this card but I'm considering returning it. Specs:

 

CPU : i5 2500k @ 3.3GHz

GPU : Sapphire R9 380 Nitro 4GB

Motherboard : GIGABYTE Z77MX-D3H

RAM : 8GB DDR3 1866

PSU : Fatal1ty 750W 80Plus Bronze

Running Windows 7, and Catalyst 15.11.1, because it ran better than Crimson

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