Comparison of XFX AMD Radeon RX 570 RS 8GB Black Edition video card vs PNY GeForce GTX 1660 6GB Blower video card by specifications and benchmarks. XFX AMD Radeon RX 570 RS 8GB Black Edition runs at 1.168 GHz base clock speed and has 4 GB of GDDR5 memory, while video card PNY GeForce GTX 1660 6GB Blower runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 150 W, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.