Comparison of ASUS Radeon RX 7900 XT video card vs ASUS TUF GAMING Radeon RX 6900 XT TOP Edition video card by specifications and benchmarks. ASUS Radeon RX 7900 XT runs at 1.500 GHz base clock speed and has 20 GB of GDDR6 memory, while video card ASUS TUF GAMING Radeon RX 6900 XT TOP Edition runs at 2.135 GHz+ 17 % base clock speed and has 16 GB of GDDR6 memory. The TDP of the first video card is 300 W, and the second is 300 W. Compare the table of benchmark results to find out which graphic card is better.