Comparison of GIGABYTE Radeon RX 6900 XT Gaming OC 16G video card vs Sapphire Nitro+ Radeon RX 6900 XT video card by specs and benchmarks. GIGABYTE Radeon RX 6900 XT Gaming OC 16G runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory, while video card Sapphire Nitro+ Radeon RX 6900 XT runs at 1.875 GHz+ 3 % base clock speed and has 16 GB of GDDR6 memory. The weight is different, -- vs 1300 g. The TDP of the first video card is 340 W+ 13 %, and the second is 340 W+ 13 % . Compare the benchmark results to find out which video card is better.