Comparison of Sapphire Nitro+ Radeon RX 6900 XT video card vs PNY RTX A5500 video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card PNY RTX A5500 runs at 1.170 GHz base clock speed and has 24 GB of GDDR6 memory. The TDP of the first video card is 340 W+ 13 %, and the second is 230 W. Compare the table of benchmark results to find out which graphic card is better.