Comparison of GIGABYTE Radeon RX 590 Gaming 8G video card vs PNY RTX A4000 video card by specifications and benchmarks. GIGABYTE Radeon RX 590 Gaming 8G runs at 1.469 GHz base clock speed and has 8 GB of GDDR5 memory, while video card PNY RTX A4000 runs at 0.735 GHz base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 225 W, and the second is 140 W. Compare the table of benchmark results to find out which graphic card is better.