Radeon RX 6400vsGeForce RTX 5090
The GeForce RTX 5090 is a top-tier graphics card for enthusiasts and professionals who need maximum performance for 4K gaming and heavy creative work, while the Radeon RX 6400 is an entry-level card for basic PC use and very light gaming.
Radeon RX 6400
RDNA 2.0 · TSMC 6 nm · 2022
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GeForce RTX 5090
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 wins decisively for anyone needing top-tier graphics performance, leaving the Radeon RX 6400 far behind.
For budget buyers, the Radeon RX 6400 is the smarter pick as a low-cost, low-power card for basic tasks.
Choose the Radeon RX 6400 for a simple office PC or media center where you need a basic display output with minimal power draw.
Frequently asked questions
Is the RX 6400 better than the RTX 5090?
Overall the RTX 5090 is the stronger graphics card: it ranks higher in our aggregate performance score (94 vs 19 out of 100), so it leads the RX 6400 in most workloads.
How much faster is the RTX 5090 than the RX 6400?
Based on our aggregated benchmark scores the RTX 5090 is roughly 395% 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?
If you want the most performance, pick the RTX 5090. 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.