Product Compare
AMD Radeon RX 6400 vs AMD Radeon R9 M390 Mac Edition
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2022 | May 2015 |
| Generation | Navi II | Crystal System |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 4.0 x4 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 1923 MHz | |
| Boost Clock | 2321 MHz | |
| Memory Clock | 2000 MHz | 1365 MHz |
| Memory | ||
| Memory Size | 4GB | 2GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 64bit | 256bit |
| Bandwidth | 128.0GB/s | 174.7GB/s |
| Render Config | ||
| Compute Units | 12 | 16 |
| Shading Units | 768 | 1024 |
| TMUs | 48 | 64 |
| ROPs | 32 | 32 |
| RT Cores | 12 | |
| L1 Cache | 128 KB per Array | 16 KB (per CU) |
| L2 Cache | 1024 KB | 512 KB |
| L3 Cache | 16 MB | |
| Theoretical Performance | ||
| Pixel Rate | 74.27 GPixel/s | 30.66 GPixel/s |
| Texture Rate | 111.4 GTexel/s | 61.31 GTexel/s |
| FP16 (half) | 7.130 TFLOPS | |
| FP32 (float) | 3.565 TFLOPS | 1.962 TFLOPS |
| FP64 (double) | 222.8 GFLOPS | 122.6 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 24 | Pitcairn |
| GPU Variant | Navi 24 XL(215-135000046) | Pitcairn PRO(215-0828062) |
| Architecture | RDNA 2.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 6 nm | 28 nm |
| Transistors | 5.4 billion | 2.8 billion |
| Die Size | 107 mm² | 212 mm² |
| Board Design | ||
| TDP | 53W | 80W |
| Suggested PSU | 250 W | |
| Outputs | 1x HDMI 2.11x DisplayPort 1.4a | No outputs |
| Power Connectors | None | None |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.2 | 1.2 |
| Vulkan | 1.3 | 1.2 |
| Shader Model | 6.7 | 5.1 |