Of course there are cards They just draw a bit of power, but if you're okay with using a 6 pin power connector, you can get a 660 TI for about 50 USD. That will run Overwatch just fine, and should run GTA V at okay settings.
Can't really expect alot when you are on a budget, but i would say a 660 is better value for the money than a RX550
The 550 is awful.
However, the 660 Ti still holds up.
Could you link to this supposed $50 660 Ti?
Sounds like a good deal, I doubt it's new though, and used for $50 can get you better.
It might be a moot point. Without a decent CPU, no card is going to run GTA V well. Overwatch is a bit more forgiving in that area. Not many people looking at $50 videocards have capable CPUs.
Yeah i would save for an RX460, but i think he should go for the 660 ti if he can get it really cheap. I bought a 660 off someone for 15 once 😛 Put it in my brothers computer for him to play Minecraft and Overwatch