Comparison of XFX AMD Radeon RX 570 RS 4GB Black Edition video card vs KFA2 GeForce GTX 1070 Founders Edition video card by specifications and benchmarks. XFX AMD Radeon RX 570 RS 4GB Black Edition runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card KFA2 GeForce GTX 1070 Founders Edition runs at 1.506 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 150 W, and the second is 150 W. Compare the table of benchmark results to find out which graphic card is better.