The NVIDIA GeForce RTX 5090D is the objective winner of this comparison, securing victory across nine of the fourteen evaluated specifications. Its most significant technical advantage is the memory clock, which outperforms the NVIDIA RTX 4080 SUPER by 143 percent. While the latter component remains competitive in four specific areas, the superior memory architecture of the former establishes it as the more capable hardware option based on the provided technical data.

Users prioritizing raw memory performance should select the NVIDIA GeForce RTX 5090D to leverage its substantial clock speed advantage. Conversely, the NVIDIA RTX 4080 SUPER is the appropriate choice for buyers who prioritize the MSRP, as it offers a 57 percent advantage in that category. Choosing between these two components depends entirely on whether your primary requirement is the high-end memory capability of the newer model or the cost-efficiency provided by the 4080 series.