AMD Radeon HD 6850 X2 vs AMD Radeon HD 6870M
What is the difference between AMD Radeon HD 6850 X2 and AMD Radeon HD 6870M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Barts | GPU Name | Granville |
| Barts PRO (215-0798006) | Model number | Granville XT (216-0769024) |
| TeraScale 2 | Architecture | TeraScale 2 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 40 nm |
| 1,700 million | Transistors | 1,040 million |
| 255 mm² | Die Size | 166 mm² |
Graphics Card
| Sep 19th, 2011 | Release Date | Jan 4th, 2011 |
| Northern Islands (HD 6800) | Family | Vancouver (HD 6800M) |
| End-of-life | Production | End-of-life |
| Evergreen | Predecessor | Manhattan |
| PCIe 2.0 x16 | Bus Interface | MXM-B (3.0) |
Memory
| 2 GB x2 | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit x2 | Memory Bus | 128 bit |
Clock Speeds
| 1050 MHz 4.2 Gbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
| 800 MHz | GPU Clock | 675 MHz |
Render Config
| 48 x2 | TMUs | 40 |
| 32 x2 | ROPs | 16 |
Board Design
| 254 W | Thermal design power (TDP) | 50 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | No outputs |
API support
| 11.2 (11_0) | DirectX | 11.2 (11_0) |
| 4.4 | OpenGL | 4.4 |
| 1.2 | OpenCL | 1.2 |
| N/A | Vulkan | N/A |
| 5.0 | Shader Model | 5.0 |