Comparison of PowerColor Fighter Radeon RX 6600 XT video card vs MSI GeForce RTX 3080 GAMING Z TRIO 12G LHR 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 MSI GeForce RTX 3080 GAMING Z TRIO 12G LHR 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.