Really depends. I own a G3258 (haswell, 2cores). Clocked at @3.2ghz. Stuttering and freezing happens, rare.... but happens. After OC to 4.0ghz almost never. Also PhysX set to GPU (750Ti) and 8gb ram so that nothing would be cached to HDD. If its 1st-3rd gen Pentium CPU then it will stutter more. If you are talking about Core2Duo - it won't work. If its a laptop with pentium - also not a very good idea.
My verdict: It's enough to launch the game but not enough to have a good experience playing it, you will get freezes a lot. I advise to get atleast i3 or even better option - i5 cpu with 4 cores. Dual core gaming is at its edge.
Edit: To my understanding if fps is low stabile, its GPU bottlenecking. If you get good framerates but everything freezes sometimes - its CPU bottleneck.