The NVIDIA RTX 5090 is the objective winner of this comparison, securing victories in eleven out of thirteen measured categories. Its most significant technical advantage is its FP16 performance, which is 74757% higher than that of the alternative. While the NVIDIA GTX 1080 remains competitive in specific areas, the sheer scale of the performance gap in floating-point operations establishes the newer card as the superior option for raw computational power.

Users prioritizing maximum performance should choose the NVIDIA RTX 5090 to leverage its massive advantage in FP16 capabilities. Conversely, the NVIDIA GTX 1080 is the better choice for those focused on initial cost, as it maintains a 70% better MSRP. Selecting between these two components depends entirely on whether your primary objective is to maximize high-end processing power or to minimize your upfront expenditure based on the provided pricing data.