The AMD RX 590 and the NVIDIA GTX 1660 Ti represent a balanced choice for users, as both components secure an equal number of spec victories. While the two cards are objectively tied in overall performance metrics, they offer distinct technical strengths. The AMD RX 590 holds a significant lead in shader units, providing a 50% advantage in that category, whereas the NVIDIA GTX 1660 Ti excels in computational efficiency with a 53% lead in FP16 performance.

Choose the AMD RX 590 if your specific workload prioritizes the higher shader unit count for your processing needs. Conversely, select the NVIDIA GTX 1660 Ti if your applications benefit more from the superior FP16 performance provided by the architecture. Because both cards offer a comparable number of winning specifications, your final decision should rely entirely on whether your software environment favors the shader-heavy design of the former or the FP16-optimized design of the latter.