The NVIDIA GeForce RTX 5090D is the objective winner of this comparison, securing victories in eleven out of thirteen measured specifications. Its most significant technical advantage is its FP32 performance, which is 548% better than that of the alternative. While the AMD RX 6800 holds its own in specific areas, the sheer scale of the performance lead held by the NVIDIA GeForce RTX 5090D establishes it as the superior component based on the provided data.

Users prioritizing maximum computational power should select the NVIDIA GeForce RTX 5090D to leverage its massive FP32 performance advantage. Conversely, the AMD RX 6800 is the logical choice for budget-conscious buyers, as it offers a 75% better MSRP compared to the other option. Choosing between these two components depends entirely on whether your primary requirement is raw processing capability or a more favorable initial purchase cost.