A gt 730 can actually run some newer AA titles at 720p 30 fps low settings. You could run most games at lowest settings (except games that require 4 cpu cores or run like crap with 2 cpu cores) you could even run shadow of morador lowest sertings but games like the witcher 3 or gta v (saints row 3 is a good gta v alternitave for your rig) that really like quad cores won't run well on your pc(gta v is kind of playable on a pentium if you don't mind a bit of stuter, but a gt 730 is fine for gta v) If you could upgrade to a decent quad core cpu and maybe a better gpu, that would give you a lot more options.