Comparison of ASRock Radeon RX 5700 XT Challenger Pro 8G OC video card vs MSI Radeon RX 6600 XT GAMING 8G video card by specifications and benchmarks. ASRock Radeon RX 5700 XT Challenger Pro 8G OC runs at 1.650 GHz+ 3 % base clock speed and has 8 GB of GDDR6 memory, while video card MSI Radeon RX 6600 XT GAMING 8G runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 160 W. Compare the table of benchmark results to find out which graphic card is better.