Comparison of SAPPHIRE NITRO+ Radeon RX 6600 XT video card vs KFA2 GeForce GTX 1070 KATANA video card by specifications and benchmarks. SAPPHIRE NITRO+ Radeon RX 6600 XT runs at 1.968 GHz base clock speed and has 8 GB of GDDR6 memory, while video card KFA2 GeForce GTX 1070 KATANA runs at 1.518 GHz+ 1 % base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 160 W, and the second is 150 W. Compare the table of benchmark results to find out which graphic card is better.