The AMD RX 5500 XT and the AMD RX 580 reach a stalemate, as both components secure an equal number of victories across the evaluated specifications. While neither card emerges as the objective winner, the AMD RX 5500 XT holds a significant lead in computational efficiency, offering 68% better FP16 performance. Conversely, the AMD RX 580 provides a substantial capacity advantage, featuring 100% more VRAM than its counterpart, which remains its most impactful technical edge.

Users prioritizing high-speed computational tasks should select the AMD RX 5500 XT to leverage its superior FP16 performance. Alternatively, those who require larger memory buffers for their specific workloads should choose the AMD RX 580 to utilize its doubled VRAM capacity. Because the overall comparison results in a tie, the decision rests entirely on whether your primary requirement is the enhanced processing speed of the former or the increased memory volume of the latter.