AMD Radeon R9 M290X Mac Edition vs AMD Radeon R9 M385X
What is the difference between AMD Radeon R9 M290X Mac Edition and AMD Radeon R9 M385X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Pitcairn | GPU Name | Strato |
| Pitcairn PRO (215-0828062) | Model number | Strato 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
| Nov 23rd, 2014 | Release Date | May 5th, 2015 |
| Crystal System (R9 M200) | Family | Crystal System (R9 M300) |
| 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 | 76.80 GB/s |
Performance
| 31.20 GPixel/s | Pixel fillrate | 17.60 GPixel/s |
| 62.40 GTexel/s | Texture fillrate | 61.60 GTexel/s |
| 1.997 TFLOPS | FP32 (float) performance | 1.971 TFLOPS |
| 124.8 GFLOPS (1:16) | FP64 (double) performance | 123.2 GFLOPS (1:16) |
Clock Speeds
| 850 MHz | Base Clock | 1000 MHz |
| 975 MHz | Boost Clock | 1100 MHz |
| 1365 MHz 5.5 Gbps effective | Memory Clock | 1200 MHz 4.8 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 |