Comparison of PowerColor Radeon RX 6800 video card vs Colorful iGame GeForce GTX 1080 Vulcan X-V video card by specifications and benchmarks. PowerColor Radeon RX 6800 runs at 1.700 GHz base clock speed and has 16 GB of GDDR6 memory, while video card Colorful iGame GeForce GTX 1080 Vulcan X-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory. The TDP of the first video card is 250 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.