Comparison of NVIDIA TITAN X Pascal video card vs AMD Radeon RX 7800 XT video card by specs and benchmarks. NVIDIA TITAN X Pascal runs at 1.417 GHz base clock speed and has 12 GB of GDDR5X memory, while video card AMD Radeon RX 7800 XT runs at 1.417 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.