FPSVersusRadeon R9 390 vs Radeon RX 6400
Performance score
By our estimate, Radeon RX 6400 beats Radeon R9 390 by 8%.
The score is our own estimate from the specs (core count, clock, architecture), not FPS from benchmarks. 100 = the fastest card in our database.
Real tests
What the test measures
Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.
GPU rendering (Blender)
Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.
Overview
| Radeon R9 390 | Radeon RX 6400 | |
|---|---|---|
| Score (0–100) | 8.77 | 9.45 |
| Ranking position | 168 | 162 |
| Power efficiency (0–100) | no data | 85.48 |
| Manufacturer | AMD | AMD |
| Type | Desktop | Desktop |
| Architecture | GCN | RDNA 2 |
| Release date | no data | 2022-01-19 |
Specifications
| Radeon R9 390 | Radeon RX 6400 | |
|---|---|---|
| Shader cores | 2560 | 768 |
| Game clock | no data | 2039 MHz |
| Boost clock | 1000 MHz | 2321 MHz |
| FP32 TFLOPS (calculated) | 5.12 | 3.57 |
| Hardware ray tracing | no | yes |
Video memory
| Radeon R9 390 | Radeon RX 6400 | |
|---|---|---|
| VRAM | 8 GB | 4 GB |
| Memory type | GDDR5 | GDDR6 |
| Memory bus | 512 bit | 64 bit |
| Memory bandwidth | 384 GB/s | 128 GB/s |
Power and connection
| Radeon R9 390 | Radeon RX 6400 | |
|---|---|---|
| Board power | no data | 53 W |
Pros and cons
Radeon R9 390
- more VRAM: 8 GB vs 4 GB
- higher memory bandwidth: 384 vs 128 GB/s
Radeon RX 6400
- 8% higher overall score
- has hardware ray tracing
Other comparisons
Visitor rating
Questions and comments
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