The GTX 950 can get a few more FPS and at that budget, a few FPS more is quite a lot. If you overclock the Pentium it should perform faster than the i3 but that all depends on whether you win the silicone lottery or not and whether your actually confident with overclocking. Also, if your going to use the stock cooler then you won't be able to push the Pentium to its true potential anyway so then I'd choose the i3. Either way, both configuartions aren't going to be maxing out games at 1080p and possibly not even 720p.