The NVIDIA RTX 2080 is the objective winner of this comparison, securing six spec victories against the four held by the NVIDIA GTX 1660 SUPER. The most significant technical advantage belongs to the RTX 2080, which features a 109% increase in shader units compared to its counterpart. While the GTX 1660 SUPER maintains a 67% advantage in MSRP, the superior hardware density of the RTX 2080 establishes it as the more capable component across the majority of measured specifications.

Users prioritizing hardware performance and raw processing capacity should select the NVIDIA RTX 2080 to leverage its substantial lead in shader units. Conversely, the NVIDIA GTX 1660 SUPER is the appropriate choice for budget-conscious builders who prioritize the 67% advantage in MSRP. By weighing the importance of the higher shader count against the cost-efficiency of the lower MSRP, buyers can align their choice with either maximum technical capability or the most favorable pricing structure.