Aggregate performance score
We've compared Radeon R9 390 and Radeon RX 6400, covering specs and all relevant benchmarks.
Radeon R9 390 outperforms Radeon RX 6400 by a moderate 9% based on our aggregate benchmark results.
Summary
We compared two graphics cards: the Radeon R9 390 with 8GB VRAM, against the Radeon RX 6400 with 4GB VRAM (RDNA 2 architecture). The Radeon RX 6400 offers significantly better value for money with a 77% higher value score. The Radeon RX 6400 is more power-efficient, consuming 53W compared to 275W. 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 R9 390
Reasons to consider the Radeon RX 6400
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 R9 390 | Radeon RX 6400 |
|---|---|---|
| Architecture | N/A | RDNA 2 |
| VRAM Size | 8 GB | 4 GB |
| TDP | 275W | 53W |
| Current Price | $387 New • Amazon | $200 New • Amazon |
Conclusion
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 R9 390 with 8GB 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.