Comparison of Sapphire Pulse Radeon RX 580 8G G5 video card vs ZOTAC GeForce GTX 1070 Ti AMP Edition video card by specifications and benchmarks. Sapphire Pulse Radeon RX 580 8G G5 runs at 1.257 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ZOTAC GeForce GTX 1070 Ti AMP Edition runs at 1.607 GHz base clock speed and has 8 GB of GDDR5 memory. The TDP of the first video card is 185 W, and the second is 180 W. Compare the table of benchmark results to find out which graphic card is better.