With an i5 at lower resolutions you may get close to 30fps with the 250x but honestly the 250x is a really weak gpu comparatively speaking. Not to mention, 30fps (at best, lower during dips in frame rate) is going to make it difficult to play, very laggy and not very enjoyable. I've played a few games at 30fps, it's miserable with all the stuttering and freezing and hesitation. Even if 60fps is considered the sweet spot, about the lowest I've seen playable is 45-50. Once it starts getting down to the 20's to low 30's, I doubt you'll be happy with it. More like watching a slideshow.