Originally Posted by
Kusanagi
If you average the price range for the GTX 1070, thats around $450 for the card not including shipping and tax. That leaves you with $150 for a CPU, case, PSU, motherboard, RAM, and hard drive. The cheapest "eco" friendly GPU's are the AMD ones at they cost around $90 and even then, I think there's going to be some bottlenecking with that. If you're gonna be playing CSGO and Minecraft you don't need a card that high end.
The RX 480 just came out and its the current best budget friendly GPU. You can definitely make a rig with that around the $600 range.