Comparison of PowerColor Hellhound Radeon RX 6600 video card vs ZOTAC GAMING GeForce RTX 3070 Ti Trinity video card by specifications and benchmarks. PowerColor Hellhound Radeon RX 6600 runs at 1.626 GHz base clock speed and has 8 GB of GDDR6 memory, while video card ZOTAC GAMING GeForce RTX 3070 Ti Trinity runs at 1.580 GHz base clock speed and has 8 GB of GDDR6X memory. The TDP of the first video card is 132 W, and the second is 290 W. Compare the table of benchmark results to find out which graphic card is better.