Arma 3 20-30 FPS Fairly sure I meet required hardware

scoobysnack1

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Nov 27, 2014
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I can run the game on ultra/very high on campaign, but multilayer goes down to 19 fps. (Specifically king of the hill) On low preset I get 30. No matter how low the settings are, I often get crippling fps drops, but my friends get them too so I think those are server based. (I once had an fps drop while in a 1v1 and I wasn't dead after my game recovered, I think that he had the drop too)

If these parts are somehow not up to the requirements of the game, recommendations for upgrades are welcome.

AMD Radeon HD 7800 Series card (PCI data base has no result for 0x6818)
4GBs of ram
Windows 8.1 64-bit
Intel(R) Core(TM) i3-4130T CPU @ 2.90GHz (4 CPUs), ~2.9GHz
10+ GBs of free hard drive space

System was already made (System Model M11AD), I shoved a card and power supply in there. Speed fan says there isn't a problem heat-wise, so that shouldn't be the problem.
EDIT: Just found this http://www.tomshardware.com/answers/id-1802483/bad-fps-arma.html , Do I need a new CPU? If so, what should I get?