bf3 yes, sleeping dogs yes, fc4 does not start at all;
GTX 750 Ti is better than R7 250X; and it's a 2gb ddr5 card.
pentium G3258 max supported ram is DDR3-1333, if you upgrade later to i3/i5/i7 you can go with 1600MHz ram but they will run at 1333 with pentium;
main purpose of pentium G3258 is...