Radeon RX 6400vsGeForce RTX 5090 D
The GeForce RTX 5090 D is a top-tier GPU for enthusiasts and professionals tackling 8K gaming or heavy 3D rendering, while the Radeon RX 6400 is a low-profile card for basic office work and light media playback.
Radeon RX 6400
RDNA 2.0 · TSMC 6 nm · 2022
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GeForce RTX 5090 D
Blackwell 2.0 · TSMC 5 nm · 2025
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Overall Performance Score
A unified score from combined synthetic and real-world benchmarks. 100 represents the fastest consumer GPU available.
Side-by-Side Specs
Every detail compared. Highlighted cells indicate the leading value for that metric.
Which should you buy?
The GeForce RTX 5090 D is the clear winner overall for anyone needing top-tier performance.
For budget buyers, the Radeon RX 6400 is the smarter pick due to its much lower cost and power draw.
The Radeon RX 6400 is the right choice for a basic office PC or media player where high graphics performance is unnecessary.
Frequently asked questions
Is the RX 6400 better than the RTX 5090 D?
Overall the RTX 5090 D is the stronger graphics card: it ranks higher in our aggregate performance score (100 vs 19 out of 100), so it leads the RX 6400 in most workloads.
How much faster is the RTX 5090 D than the RX 6400?
Based on our aggregated benchmark scores the RTX 5090 D is roughly 426% faster than the RX 6400 overall. The real-world gap varies by game, resolution and settings.
Which should you buy, the RX 6400 or the RTX 5090 D?
If you want the most performance, pick the RTX 5090 D. If the RX 6400 is meaningfully cheaper where you shop, it can be the better value for similar real-world results — check current prices and the full spec comparison above before deciding.