Comparison of MSI Radeon RX 6500 XT MECH 2X 4G OC video card vs ASRock Radeon RX 6500 XT Challenger ITX 4GB video card by specs and benchmarks. MSI Radeon RX 6500 XT MECH 2X 4G OC runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory, while video card ASRock Radeon RX 6500 XT Challenger ITX 4GB runs at 2.200 GHz base clock speed and has 4 GB of GDDR6 memory. The weight is different, 452 g vs 385 g. The TDP of the first video card is 107 W, and the second is 107 W . Compare the benchmark results to find out which video card is better.