Comparison of ASRock Radeon RX 6600 XT Challenger D 8GB OC video card vs MSI GeForce RTX 3090 Suprim X 24G video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Challenger D 8GB OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI GeForce RTX 3090 Suprim X 24G runs at 1.395 GHz base clock speed and has 24 GB of GDDR6X memory. The TDP of the first video card is 160 W, and the second is 420 W+ 20 %. Compare the table of benchmark results to find out which graphic card is better.