The AMD RX 7900 XTX is the objective winner of this comparison, securing victory in ten out of fifteen measured categories. Its most significant technical advantage over the alternative is its memory bandwidth, which is 67% higher. While the AMD RX 7900 GRE performs well in specific areas, the superior throughput provided by the XTX model establishes it as the more robust hardware solution based on the provided specifications.

Users prioritizing maximum hardware capability and memory bandwidth should select the AMD RX 7900 XTX for their build. Conversely, those who prioritize cost efficiency should choose the AMD RX 7900 GRE, as it offers a 45% advantage in MSRP. Your final decision should depend on whether you value the raw technical superiority of the XTX or the significant pricing benefit provided by the GRE.