AMD Radeon R9 280 vs AMD Radeon R9 M295X Mac Edition
What is the difference between AMD Radeon R9 280 and AMD Radeon R9 M295X Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | Amethyst |
| Tahiti PRO3 (215-0821330) | Model number | Amethyst XT |
| GCN 1.0 | Architecture | GCN 3.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 5,000 million |
| 352 mm² | Die Size | 366 mm² |
Graphics Card
| Mar 4th, 2014 | Release Date | Nov 23rd, 2014 |
| Volcanic Islands (R9 200) | Family | Crystal System (R9 M200) |
| End-of-life | Production | End-of-life |
| Sea Islands | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | MXM-B (3.0) |
Memory
| 3 GB | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 256 bit |
| 240.0 GB/s | Bandwidth | 174.3 GB/s |
Performance
| 29.86 GPixel/s | Pixel fillrate | 27.20 GPixel/s |
| 104.5 GTexel/s | Texture fillrate | 108.8 GTexel/s |
| 3.344 TFLOPS | FP32 (float) performance | 3.482 TFLOPS |
| 836.0 GFLOPS (1:4) | FP64 (double) performance | 217.6 GFLOPS (1:16) |
Clock Speeds
| 1250 MHz 5 Gbps effective | Memory Clock | 1362 MHz 5.4 Gbps effective |
Render Config
| 1792 | Shading Units | 2048 |
| 112 | TMUs | 128 |
| 32 | ROPs | 32 |
| 28 | Compute Units | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 768 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | MXM Module |
| 200 W | Thermal design power (TDP) | 250 W |
| 1x DVI 2x HDMI 1x DisplayPort | 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 |