Unistall Magic Bullet completely from your system. What happens?
As a point of comparison, Im running a GTX 570 on an HP Z820 Win 7 machine with no issues.
I have done a fresh install of the OS altogether. This was in order to reformat drives, reassign scratch disks, reinstall software and fresh unlocking of the video card.
Premiere Pro acts the same more or less. Noise removal is cpu intensive and when I'm removing 18db of video grain, I guess, yea, it'll be pretty slow.
I believe that the problem is the PSU. NewEgg's PSU calculator says my system needs 525watts minimum. I'm operating on a 500w. At the start of the post I was overlcocking and was also experiencing occasional reboots. I think lack of power caused the artifacts in the GTX 560. This is probably also bottlenecking the CPU and GPU (reason for low loads).
My solution is to purchase 700-850watt psu. I'm hoping this will allow the CPU & GPU the ability to process much higher loads.
Please, if anyone sees any further correction to this I'm open ears!
Guess what? The (Thermaltake) Purepower series PSUs weren't all that great to begin with. In fact, the "500W" model wasn't a true 500W PSU at all - but only a 405W unit! No wonder why you have issues, and some of your PC's components might have suffered damage caused by low DC output quality. A good analogy to this would be running a high-performance sports car that's designed to go 200 km/h on a set of tyres that really can't handle speeds of more than 100 km/h. Replace that PSU immediately before you continue using that PC.