Comparison of Sapphire Pulse Radeon RX 590 8G G5 video card vs ZOTAC GeForce GT 1030 Zone Edition video card by specifications and benchmarks. Sapphire Pulse Radeon RX 590 8G G5 runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory, while video card ZOTAC GeForce GT 1030 Zone Edition runs at 1.227 GHz base clock speed and has 2 GB of GDDR5 memory. The TDP of the first video card is 225 W, and the second is 30 W. Compare the table of benchmark results to find out which graphic card is better.