Hi, I've recently installed a new XFX RX 460 2GB to replace an HD 6870, and although my max framerates seem (subjectively) a fair bit higher, I'm also experiencing considerable stutter in a variety of games, including Skyrim and Mirror's Edge, and also on the desktop (especially noticeable when dragging windows). Running Wattman on my second monitor, I see the "activity" line on the histogram fluctuating from update to update between 100% and 0%. The GPU and RAM lines stay steady. I've tried increasing the power limit to +10.
My specs are as follows:
Windows 7 Professional 64-bit
AMD Phenom II X6 1090T
I have two Dell U2410s connected, one by Display Port (primary), one by DVI (secondary)
Attached is an image of Wattman and CPUID HWMonitor showing a few minutes of Mirror's Edge gameplay. The CPU temp peaked at 70C and the GPU at 62C.
Any help or information would be much appreciated!