Comparison of PowerColor Radeon RX Vega 64 Limited Edition video card vs Gainward GeForce GTX 1080 Founders Edition video card by specifications and benchmarks. PowerColor Radeon RX Vega 64 Limited Edition runs at 1.247 GHz base clock speed and has 8 GB of HBM2 memory, while video card Gainward GeForce GTX 1080 Founders Edition runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 295 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.