The GPU is a new Saphire 5700XT. All the drivers are up to date and the old drivers are removed with DDU
In games, turning on V-sync causes the framerate to be limited to 30 or less. This happens in all games i've tried. Turning off v-sync gives higher framerate but causes horrific stuttering and screen tearing. I consider most games to be almost unplayable in either state.
Watching Youtube videos, the video hangs and stutters constantly with massive amounts of dropped frames. It is particularly bad on 60FPS videos, but it drops frames on lower framerates too. This happens with hardware acceleration turned on or off in chrome, and happens in Edge as well. It happens on other video services like twitch as well.
None of these problems happened with the old GTX970, and the GPU was the only hardware change I made
All Radeon settings are factory standard.
I've tried connecting to the monitor using both HDMI and DP and the problems are the same with either.
CPU: Intel 6700K
PSU: 650W Corsair
Monitor: BenQ GW2765 @ 60hz 1440P 16:9
Motherboard: Gigabyte Gaming Z3
Ram: 16GB HyperX
HD: Intel SSD
Does anyone have any recommendations? Its still in the store return timewindow, so I think I will return it if I cant find a fix soon.