Hey Yoors, have you solved your problem ?
Indeed your problem is likely CPU bottlenecking. I assume you tried the aforementioned methods, so I will only add two things:
1st, use your Nvidia control panel to set a few things to ARMA exclusively:
- Maximum pre-rendered frames: 1
- Multi-Display management mode: Single display performance mode
- Power management mode: Prefer maximum performance
You can also disable some features here as well, like Vsync and so on..
2nd, try using a new memory allocator. It has shown improvements in some systems.
Here is the one I use (and I believe Murphy is now using as well):
https://github.com/fred41/tbbmalloc_armaAlso, the newest Nvidia driver (365.10) from May 2nd, has also improved my performance in some games (I still have to test it with ARMA). Try updating it.
My system is an 2600k OCed at 4.0ghz, 1x GTX580 and 12GB runnin at 1600mhz.
As you see, it is not the best out there but I can get stable frames during operations (25~30 minimum).
Hope it helps, bud!
-- EDIT --
Also, try using "Park Control". It's a program that allows your core to be set completely unparked which can cause significant improvements, but also increased power consumption, so use it with care. You can also set this to a particular Windows Power mode (only for High Performance or Gaming, for instance).