I recently remade my system. I kept only my Sapphire Tri X Fury OC edition. Running an Intel 6700K and an Asus Z170I for my motherboard. Reinstalled drivers completely using DDU to remove them. Previously I was running an FX8320 and a Gigabyte motherboard the name of which began with the numbers 970 or something like that.
The problem is that the GPU clock remains at Idle levels of around 300 when playing common games like Doom and Overwatch with visibly poor performance. However when I ran furmark it somehow knew to put the Core clock up to 1400 or whatever it was, which is way more reasonable and the furmark was running really well and there was no thermal throttling after running the furmark for a while.
What's going on?