I just received this GPU yesterday and it seems like it glitches all the time.
I have the latest drivers and I'm using this adapter to display the output on my screen (only has a VGA input).
See the video for what I'm experiencing.
It's really annoying and I can't do anything about it.
Would changing the adapter work ? I could try getting a DVI one instead of the HDMI.
Have a great day anyway !