amitrano :
What would be the cheapest upgrade on a 970A D3P MB with a HD6670 GPU, 4GB 1333 single stick RAM using a Phenom iix2 550 ? I want to keep the CPU and MB.
I would also suggest adding another 4GB of RAM and moving to an RX-560 or GTX-1050. I probably wouldn't go any higher than that for a GPU. Also, I know you said you want to keep your Phenom II 550 X2, but you may want to look for a Phenom II 955BE X4 if you can find one and your MoBo will support a 125W TDP, just for the extra two cores. Your more modern games will appreciate it, and as most will have to be NOS, or used, they should be pretty cheap.