muziqaz try changing from the shadows setting from the AMD CHS option to softest option. I think I may have just fixed my stutter I wonder if it's the same for you.
Edit, from the benchmark - Look at the max frametimes
AMD CHS Shadows on
Time in milliseconds(ms). (Lower is better). Min, Max, Avg
Pass 0, 7.765840, 213.931671, 9.855888
Pass 1, 7.996892, 440.008575, 10.253700
Pass 2, 5.818220, 432.273468, 9.432903
Pass 3, 5.742696, 447.233276, 8.897166
Pass 4, 4.255259, 18.928015, 9.457737
Softest Shadow setting on
Time in milliseconds(ms). (Lower is better). Min, Max, Avg
Pass 0, 7.320697, 18.684803, 9.394480
Pass 1, 7.869525, 17.409536, 10.418278
Pass 2, 5.448921, 16.920231, 9.652024
Pass 3, 5.623329, 16.169792, 8.922264
Pass 4, 4.066450, 19.684853, 9.546260