Comparison of XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy video card vs INNO3D GeForce RTX 2060 12GB Twin X2 OC video card by specifications and benchmarks. XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card INNO3D GeForce RTX 2060 12GB Twin X2 OC runs at 1.470 GHz base clock speed and has 12 GB of GDDR6 memory. The TDP of the first video card is 185 W, and the second is 185 W. Compare the table of benchmark results to find out which graphic card is better.