Cheap and good Graphics card for gaming?

I would like to know if there are any cheap graphics cards I could buy that could atleast run ROBLOX (Siblings play it) and/or Minecraft smoothly.

High-end: GeForce GTX 970 4GB ($320) or R9 390x
Mid-range: GeForce GTX 960 2GB ($170) or R9 380
Low-end: GeForce GTX 750 Ti 2GB ($100) or R9 270
Near minimum: GT 730 2GB ($55) or R7 250 The Titan X is a good cheap card for gaming if you pc isn't able to run those titles then likely getting a graphics card won't help considering Minecraft is java based and barely uses the gpu both would need a better cpu before gpu

The Titan X is a good cheap card for gaming

If you pc isn't able to run those titles then likely getting a graphics card won't help considering Minecraft is java based and barely uses the gpu both would need a better cpu before gpu