I haven't been playing consistently lately. I cannot say this is directly related to a recent update. I have already reinstalled both Steam and Arma. I have updated my graphics drivers. I have checked to assure I'm running the latest DirectX. Reinstalling DirectX is not trivial and I don't want to do it unless that's the only option.
I've removed all subscribed content.
I have normally run Arma with most settings on "ultra" at 47 fps. I recently tried reducing the settings to "very high" with no change.
My system stats are:
3rd Generation Intel® Ivy Bridge Core™ i7-3630QM
Ram 32GB - DDR3 1600MHz Dual Channel Memory (4 SODIMMS
AMD Radeon HD 7970M (2048MB) GDDR5 DX11
Primary Hard Drive 750gb 7200rpm
64GB mSATA SSD