Comparison of MSI Radeon RX 6700 XT 12G video card vs MSI Radeon RX 6700 XT MECH 2X 12G video card by specs and benchmarks. MSI Radeon RX 6700 XT 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card MSI Radeon RX 6700 XT MECH 2X 12G runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory. The weight is different, 908 g vs 921 g. The TDP of the first video card is 230 W, and the second is 230 W . Compare the benchmark results to find out which video card is better.