SLI isn't activated in the beta version. Also, the i3 2100 has HT, which makes a huge difference for dual core CPUs. Performance increase is much higher with HT, on the order of 60 to 75% higher or even more for dual cores.
Without HT, the performance would be much less.. It might be able to play the game, but with the same problems that you get when you play The Division with a dual core CPU..
Namely severely long loading times, ridiculously slow streaming, stuttering, lag etcetera... Basically an unplayable experience.