The NVIDIA RTX 4090 is the objective winner of this comparison, securing victory in twelve out of fifteen measured specifications. Its most significant advantage is its FP32 performance, which is 641% better than that of the alternative. While the NVIDIA RTX 2080 SUPER remains competitive in specific areas, the substantial lead in raw computational power establishes the newer card as the superior technical performer across the vast majority of the evaluated categories.

Users prioritizing maximum computational throughput should choose the NVIDIA RTX 4090 to leverage its massive advantage in FP32 performance. Conversely, the NVIDIA RTX 2080 SUPER is the appropriate selection for buyers who prioritize a lower MSRP, as it holds a 56% advantage in that specific metric. Your final decision should depend on whether your primary requirement is the highest possible processing capability or a more accessible initial cost.