And i thought NV was immune to microstutter
with multi-gpu. nothing is immune to stutter.
just less and bearable with nvidia.
in this particular case - it is BF4. BF4 is still broken.
having the same issue (i7-3770k w/ 680 4gb trisli). did not notice it earlier due to solely playing recon. camping/sniping 90% of the time. now that sniper is all unlock. started playing assault/engineer/support where it requires lots of moving/panning/shooting. BF4 is a stutter fest. oddly BF3 is smooth.
depending on what lavaheache results are with 290x cross fire. may switch to the red team for tri fire. if not. may consider going backward to single screen.
ultimately. will get rid of battlefield broke permanently.
update:
finally found the culprit to my mouse stutter.
it is NOT mouse nor sli nor bf4.