The Intel Arc B570 is the objective winner of this comparison, securing victories in twelve out of fourteen measured specifications. Its most significant advantage over the AMD RX 6400 is its FP32 performance, which is 224% higher. While the AMD RX 6400 maintains a lead in power efficiency with a TDP that is 65% better than its competitor, the Intel Arc B570 dominates the majority of the technical categories evaluated.

Users prioritizing raw computational power should select the Intel Arc B570 to leverage its substantial lead in FP32 performance. Conversely, the AMD RX 6400 is the appropriate choice for those who require a more power-efficient component, as it offers a significantly lower TDP. Choosing between these two depends entirely on whether your specific needs prioritize the superior processing capabilities of the Intel option or the energy-conscious design of the AMD alternative.