GPU Limited Gaming Performance
Given the GPU-limited performance of the three games below and the upper-end settings we used, we paired each processor with the Radeon R9 280X.
Keep in mind that the R9 280 is the previous-generation flagship and at $300 it's not exactly budget material, suggesting it is unlikely anyone is going to pair the Pentium G3258 with a faster GPU. That being the case, in most games where the GPU is the primary limiting factor, the Pentium G3258 will work just as well as a Core i3 or even Core i5 processor.
That said, an increasing amount of games require more than two cores and this is where the Pentium G3258 is going to struggle, even at 4.4GHz.