Comparison of ASUS Strix GeForce GTX 980 Ti video card vs AMD Radeon RX 7800 XT video card by specs and benchmarks. ASUS Strix GeForce GTX 980 Ti runs at 1.000 GHz base clock speed and has 6 GB of GDDR5 memory, while video card AMD Radeon RX 7800 XT runs at 1.000 GHz base clock speed and has 16 GB of GDDR6 memory. The weight is different, -- vs --. The TDP of the first video card is 250 W, and the second is 250 W . Compare the benchmark results to find out which video card is better.