Radeon HD 6870M
| Manufacturer: | AMD |
| Series: | HD 6xxxM |
| Codename: | Granville XT |
| Release date: | 2011. January 04. |
| Die count: | 1 |
| Die size: | 166 mm2 |
| Fab: | 40 nm |
| Transistors: | 1040 millions |
| Bus interface: | MXM-B (3.0) |
Clock rates
| Core clock: | 675 MHz |
| Memory clock: | 1000 MHz |
| Effective memory clock (DDR): | 8000 MHz |
Memory
| Memory size: | 1024 MB |
| Memory bus type: | GDDR5 |
| Memory bus width: | 128 bit |
| Memory bandwidth (maximum): | 64 GB/s |
Core units
| Unified shader units: | 800 |
| Texture mapping units (TMU): | 40 |
| Render output units (ROP): | 16 |
| Compute units: | 10 |
Supported Technologies:
| DirectX: | 11 |
| OpenGL: | 4.3 |
| OpenCL: | 1.2 |
Performance
| Pixel fillrate: | 10.8 (GP/s) |
| Texture fillrate: | 27 (GT/s) |
| Thermal Design Power (TDP,Max): | 50 W |
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