AMD Radeon R9 M390 Mac Edition vs AMD Radeon R9 M470X
What is the difference between AMD Radeon R9 M390 Mac Edition and AMD Radeon R9 M470X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Pitcairn | GPU Name | Emerald |
| Pitcairn PRO (215-0828062) | Model number | Emerald XT |
| GCN 1.0 | Architecture | GCN 2.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 2,800 million | Transistors | 2,080 million |
| 212 mm² | Die Size | 160 mm² |
Graphics Card
| May 5th, 2015 | Release Date | May 15th, 2016 |
| Crystal System (R9 M300) | Family | Crystal System (R9 M400) |
| End-of-life | Production | Active |
| Solar System | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 128 bit |
| 174.7 GB/s | Bandwidth | 96.00 GB/s |
Performance
| 30.66 GPixel/s | Pixel fillrate | 17.60 GPixel/s |
| 61.31 GTexel/s | Texture fillrate | 61.60 GTexel/s |
| 1.962 TFLOPS | FP32 (float) performance | 1.971 TFLOPS |
| 122.6 GFLOPS (1:16) | FP64 (double) performance | 123.2 GFLOPS (1:16) |
Clock Speeds
| 1365 MHz 5.5 Gbps effective | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 1024 | Shading Units | 896 |
| 64 | TMUs | 56 |
| 32 | ROPs | 16 |
| 16 | Compute Units | 14 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 256 KB |
Board Design
| 80 W | Thermal design power (TDP) | unknown |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 2.0 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 6.3 |