BF4 stutter

[thebennyboy]

I am trying to play BF4 with Mantle and am getting really bad stuttering, even on the menus. Tried turning down settings which didn't help. DX11 seems to work fine, just terribad stuttering on Mantle. Is this an issue with the game? Couldn't find anything wrong with my PC, put stock clocks back on the cards which did nothing to help. The latest Omega drivers seem to have broken crossfire in BF4 for me.

EDIT: Here is GPU-Z usage stats. Showing that it isn't capping on VRAM. It does seem to be causing the cards to clock down for no reason.

 

[thebennyboy]

Try deleting the 2 mantle files in your C:\Users\****\Documents\Battlefield 4\cache

MantlePipelineCache
MantlePipelineCache2

Weirdly the stutter disappears when i actually go into a game. Mantle crossfire and DX11 crossfire seem to be broken though as my second card is not being utilised at all.

ULPS is disabled:

Oddly GVR on Raptr seems to do this - However when i am playing i see no such problem: