Comparison of GIGABYTE RX 5500 XT D6 8G video card vs AMD Radeon RX 6800M video card by specs and benchmarks. GIGABYTE RX 5500 XT D6 8G runs at 1.647 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card AMD Radeon RX 6800M runs at 1.647 GHz+ 2 % base clock speed and has 12 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 130 W, and the second is 145 W . Compare the benchmark results to find out which video card is better.