Comparison of PowerColor Radeon RX 5700 XT (Radial Fan) video card vs ZOTAC GeForce GTX 1070 Ti OEM video card by specifications and benchmarks. PowerColor Radeon RX 5700 XT (Radial Fan) runs at 1.605 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ZOTAC GeForce GTX 1070 Ti OEM runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 225 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.