Comparison of PowerColor Radeon RX 6800 video card vs ZOTAC GAMING GeForce RTX 2070 AMP Extreme 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 ZOTAC GAMING GeForce RTX 2070 AMP Extreme runs at 1.410 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 250 W, and the second is 225 W+ 29 %. Compare the table of benchmark results to find out which graphic card is better.