The NVIDIA GeForce RTX 4090D wins in 11 out of 13 comparable specs. Its biggest advantage is FP32 Performance (1966% better).
RX 6400 wins in 2 specs (MSRP: 90% better).
Recommendation
Choose RTX 4090D if you want the best overall performance — especially fp32 performance.
Choose RX 6400 if msrp matters more to you.
AI Versus Verdict
The NVIDIA GeForce RTX 4090D is the objective winner of this comparison, securing victories in eleven out of thirteen measured categories. Its most significant advantage is its FP32 performance, which is 1966% higher than that of the alternative. While the AMD RX 6400 manages to win in two specific areas, the substantial lead in computational capability makes the NVIDIA card the superior option for users prioritizing raw processing power and technical specifications over other considerations.
The AMD RX 6400 is the logical choice for budget-conscious users, as it offers a 90% advantage in MSRP compared to its competitor. Conversely, the NVIDIA GeForce RTX 4090D is intended for users who require maximum performance and are not constrained by the cost differences between these two models. Selecting between them depends entirely on whether your priority is the significant savings provided by the AMD card or the massive performance gains offered by the NVIDIA hardware.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.
