Arma 3 - High end PC lagging a little ?

[R3DY246]

Here are my current specs, I have overclocked my CPU to 4.0Ghz
Currently getting a little lag when running High/Standard settings :/

 

[Mac070]

Need more ram :/

 

[JackNaylorPE]

6 GB ? was expected 2 x 2, 2 x 4, 2 x 8 for a dual channel build

The CPU Turbo speed is already 3.9 Ghz.....the 0.1 Ghz OC won't really affect much. Try running with all BIOS settings at default and see if a setting in the BIOS is tripping something up.

What are CPU temps / voltages under RoG Real Bench ?
What are GPU temps / voltages under Furmark ?

HWiNFO will read them for you
http://www.hwinfo.com/