what is best with GPU 4 G for mining
If you are wondering which video card is the best with 4 gb of memory, then this is rx 570 4gb, rx 580 4gb, rx 470 4gb, rx 480 4gb. 1050 4 GB loses in mining performance to those AMD video cards.
The R9 380 and R 290 4GB are very old graphics cards.
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