Comparison of GIGABYTE Radeon RX 6800 XT Gaming OC 16G video card vs GIGABYTE Radeon VII HBM2 16G video card by specs and benchmarks. GIGABYTE Radeon RX 6800 XT Gaming OC 16G runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card GIGABYTE Radeon VII HBM2 16G runs at 1.825 GHz base clock speed and has 16 GB of HBM2 memory. The weight is different, -- vs --. The TDP of the first video card is 300 W, and the second is 300 W . Compare the benchmark results to find out which video card is better.