The AMD RX 7900 GRE is the objective winner of this comparison, securing victories in eleven out of fourteen measured specifications. Its most significant technical advantage over the NVIDIA RTX 3080 12 GB is its FP16 performance, which is 200% better. This substantial lead in floating-point precision capabilities establishes the AMD RX 7900 GRE as the superior option based on the provided hardware metrics, despite the NVIDIA RTX 3080 12 GB maintaining a lead in three specific areas.

Users prioritizing high-precision computational tasks should select the AMD RX 7900 GRE to leverage its massive advantage in FP16 performance. Conversely, the NVIDIA RTX 3080 12 GB remains the preferred choice for those who specifically require a higher count of shader units, where it holds a 75% advantage. Choosing between these two components depends entirely on whether your workload benefits more from the superior floating-point throughput of the AMD card or the increased shader density of the NVIDIA hardware.