GeForce RTX 4090vsRadeon RX 6400
The GeForce RTX 4090 is the ultimate card for 4K gaming and pro-level creative work, while the Radeon RX 6400 is a tiny, low-power option for basic PC builds or office machines.
GeForce RTX 4090
Ada Lovelace · TSMC 5 nm · 2022
As an Amazon Associate we may earn from qualifying purchases.
Radeon RX 6400
RDNA 2.0 · TSMC 6 nm · 2022
As an Amazon Associate we may earn from qualifying purchases.
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 4090 wins decisively, offering vastly superior speed and memory for demanding gaming and creative work.
For budget buyers, the Radeon RX 6400 is the smarter pick, costing far less for basic tasks and everyday use.
Choose the Radeon RX 6400 when building a cheap office PC or media center that needs zero gaming muscle.
Frequently asked questions
Is the RTX 4090 better than the RX 6400?
Overall the RTX 4090 is the stronger graphics card: it ranks higher in our aggregate performance score (92 vs 19 out of 100), so it leads the RX 6400 in most workloads.
How much faster is the RTX 4090 than the RX 6400?
Based on our aggregated benchmark scores the RTX 4090 is roughly 384% faster than the RX 6400 overall. The real-world gap varies by game, resolution and settings.
Which should you buy, the RTX 4090 or the RX 6400?
If you want the most performance, pick the RTX 4090. 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.