ATI Mobility Radeon HD 4870 X2 vs AMD Radeon R7 M445
What is the difference between ATI Mobility Radeon HD 4870 X2 and AMD Radeon R7 M445. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M98 | GPU Name | Meso |
| M98 XT (216-0732023) | Model number | Meso PRO (216-0864032) |
| TeraScale | Architecture | GCN 3.0 |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 28 nm |
| 956 million | Transistors | 1,550 million |
| 256 mm² | Die Size | 125 mm² |
Graphics Card
| Jan 9th, 2009 | Release Date | May 15th, 2016 |
| M9x (Mobility HD 4800) | Family | Crystal System (R7 M400) |
| End-of-life | Production | Active |
| M8x | Predecessor | Solar System |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x8 |
Memory
| 1024 MB x2 | Memory Size | 4 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit x2 | Memory Bus | 64 bit |
Clock Speeds
| 700 MHz 2.8 Gbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
Render Config
| 40 x2 | TMUs | 20 |
| 16 x2 | ROPs | 8 |
Board Design
| No outputs | Display Connectors | No outputs |
API support
| 10.1 (10_1) | DirectX | 12 (12_0) |
| 3.3 | OpenGL | 4.6 |
| 1.1 | OpenCL | 2.0 |
| N/A | Vulkan | 1.2 |
| 4.1 | Shader Model | 6.0 |