I have been trying to build a good gaming PC under $600 .
Are these specs good ?. And most importantly , for how long will this PC be able to run AAA games on high settings @30-40 FPS?.
Never!
The CPU and GPU of your choice will never beat current gen consoles. 1050Ti is basically 750Ti or steroids! I have one and i can only give me 40 to 45FPS on GTA V on max setting at resolution 1600x900.o_O
Ryzen 1400 or above will be a better choice. And 8GB or more RAM is needed to gaming or for common use today.