Comparison of PowerColor Fighter Radeon RX 6600 XT video card vs Zotac GAMING GeForce RTX 3080 AMP Extreme Holo LHR 12GB video card by specifications and benchmarks. PowerColor Fighter Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card Zotac GAMING GeForce RTX 3080 AMP Extreme Holo LHR 12GB runs at 1.260 GHz base clock speed and has 12 GB of GDDR6X memory. The TDP of the first video card is 160 W, and the second is 390 W+ 11 %. Compare the table of benchmark results to find out which graphic card is better.