Comparison of SAPPHIRE NITRO+ Radeon RX 6700 XT video card vs Gainward GeForce RTX 3070 Phantom+ LHR video card by specifications and benchmarks. SAPPHIRE NITRO+ Radeon RX 6700 XT runs at 2.321 GHz base clock speed and has 12 GB of GDDR6 memory, while video card Gainward GeForce RTX 3070 Phantom+ LHR runs at 1.500 GHz base clock speed and has 8 GB of GDDR6 memory. The TDP of the first video card is 260 W+ 13 %, and the second is 250 W+ 14 %. Compare the table of benchmark results to find out which graphic card is better.