Aggregate performance score
We've compared Radeon RX 6400 and Radeon RX 7900 GRE, covering specs and all relevant benchmarks.
Radeon RX 7900 GRE outperforms Radeon RX 6400 by a significant 498% based on our aggregate benchmark results.
Summary
We compared two graphics cards: the Radeon RX 6400 with 4GB VRAM (RDNA 2 architecture), against the Radeon RX 7900 GRE with 16GB VRAM (RDNA 3 architecture). The Radeon RX 7900 GRE offers significantly better value for money with a 50% higher value score. The Radeon RX 6400 is more power-efficient, consuming 53W compared to 260W. On this page, you will find detailed benchmark comparisons, technical specifications, value score analysis, and key differences to help you choose the right graphics card for your needs and budget.
Key Differences
An overview of the main advantages of each graphics card
Reasons to consider the Radeon RX 6400
Reasons to consider the Radeon RX 7900 GRE
Value Score Comparison
Price-to-performance value analysis
Benchmarks
Performance comparison across 1 common benchmarks
3DMark synthetic
Technical Specifications
Side-by-side hardware comparison
| Specification | Radeon RX 6400 | Radeon RX 7900 GRE |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| VRAM Size | 4 GB | 16 GB |
| TDP | 53W | 260W |
| Current Price | $200 New • Amazon | $799 New • Amazon |
Conclusion
But if raw gaming performance and future-proofing are more important – go for the Radeon RX 7900 GRE. For energy efficiency and lower power consumption, the Radeon RX 6400 is the better choice. If you plan to game at higher resolutions or use VRAM-intensive applications, the Radeon RX 7900 GRE with 16GB VRAM provides more headroom. Budget-conscious buyers will appreciate the Radeon RX 6400's lower 200 price point. Both graphics cards have their strengths, so choose based on your specific gaming needs, budget constraints, and performance requirements.