Comparison of ASRock Phantom Gaming X Radeon RX Vega 56 video card vs PNY GeForce GTX 1660 6GB XLR8 Gaming OC Dual Fan video card by specifications and benchmarks. ASRock Phantom Gaming X Radeon RX Vega 56 runs at 1.156 GHz base clock speed and has 8 GB of HBM2 memory, while video card PNY GeForce GTX 1660 6GB XLR8 Gaming OC Dual Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 210 W, and the second is 130 W+ 8 %. Compare the table of benchmark results to find out which graphic card is better.