The AMD RX 9060 XT 16 GB is the objective winner of this comparison, securing victory in nine out of thirteen measured specifications. While the AMD RX 580 maintains a notable lead in memory bus width, which is 100% better than its counterpart, the newer card dominates in computational power. The most impactful advantage for the AMD RX 9060 XT 16 GB is its FP16 performance, which is 731% better than the older model.

Users who prioritize raw computational throughput for modern tasks should choose the AMD RX 9060 XT 16 GB due to its massive lead in FP16 performance. Conversely, the AMD RX 580 remains a viable option for specific workflows that rely heavily on a wider memory bus. Selecting between these two components depends entirely on whether your primary requirements favor the superior memory architecture of the older card or the significantly higher processing capabilities of the newer one.