AMD Radeon R7 260X vs AMD Radeon R9 M390 Mac Edition
What is the difference between AMD Radeon R7 260X and AMD Radeon R9 M390 Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Bonaire | GPU Name | Pitcairn |
| Bonaire XTX (215-0839097) | Model number | Pitcairn PRO (215-0828062) |
| GCN 2.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 2,080 million | Transistors | 2,800 million |
| 160 mm² | Die Size | 212 mm² |
Graphics Card
| Oct 8th, 2013 | Release Date | May 5th, 2015 |
| Volcanic Islands (R7 200) | Family | Crystal System (R9 M300) |
| End-of-life | Production | End-of-life |
| Sea Islands | Predecessor | Solar System |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 256 bit |
| 104.0 GB/s | Bandwidth | 174.7 GB/s |
Performance
| 17.60 GPixel/s | Pixel fillrate | 30.66 GPixel/s |
| 61.60 GTexel/s | Texture fillrate | 61.31 GTexel/s |
| 1.971 TFLOPS | FP32 (float) performance | 1.962 TFLOPS |
| 123.2 GFLOPS (1:16) | FP64 (double) performance | 122.6 GFLOPS (1:16) |
Clock Speeds
| 1625 MHz 6.5 Gbps effective | Memory Clock | 1365 MHz 5.5 Gbps effective |
| 1100 MHz | GPU Clock | 958 MHz |
Render Config
| 896 | Shading Units | 1024 |
| 56 | TMUs | 64 |
| 16 | ROPs | 32 |
| 14 | Compute Units | 16 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | MXM Module |
| 115 W | Thermal design power (TDP) | 80 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | No outputs |
| 1x 6-pin | Power Connectors | None |
| C582 | Board Number | C608 |
API support
| 12 (12_0) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 2.0 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 6.3 | Shader Model | 5.1 |