Comparison of INNO3D GeForce GTX 1080 Ti iCHILL X4 Ultra video card vs AMD Radeon RX 6400 - Reference Data video card by specifications and benchmarks. INNO3D GeForce GTX 1080 Ti iCHILL X4 Ultra runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory, while video card AMD Radeon RX 6400 - Reference Data runs at base clock speed and has 4 GB of GDDR6 memory. The TDP of the first video card is 280 W+ 12 %, and the second is 53 W. Compare the table of benchmark results to find out which graphic card is better.