The AMD RX 7900 XTX is the objective winner of this comparison, securing victories in ten out of fourteen measured specifications. Its most significant technical advantage is its FP16 performance, which is 245% better than that of the NVIDIA RTX 3090. This substantial lead in floating-point processing capability establishes the AMD RX 7900 XTX as the superior option across the majority of the evaluated hardware metrics.

Users prioritizing raw processing efficiency should choose the AMD RX 7900 XTX for its dominant FP16 performance advantage. Conversely, the NVIDIA RTX 3090 remains a viable alternative for specific workloads that benefit from its architecture, as it holds a 71% advantage in shader units. Selecting between these two components depends on whether your primary requirements favor the superior floating-point throughput of the AMD card or the higher shader count offered by the NVIDIA hardware.