Radeon HD 6870
| Manufacturer: | AMD |
| Series: | HD 6xxx (Northern Islands) |
| Codename: | Barts XT |
| Release date: | 2010. October 22. |
| Die count: | 1 |
| Die size: | 255 mm2 |
| Fab: | 40 nm |
| Transistors: | 1700 millions |
| Bus interface: | PCI-E 2.1 x16 |
Clock rates
| Core clock: | 900 MHz |
| Memory clock: | 1050 MHz |
| Effective memory clock (DDR): | 8400 MHz |
Memory
| Memory size: | 1024 MB |
| Memory bus type: | GDDR5 |
| Memory bus width: | 256 bit |
| Memory bandwidth (maximum): | 134.4 GB/s |
Core units
| Unified shader units: | 1120 |
| Texture mapping units (TMU): | 56 |
| Render output units (ROP): | 32 |
| Compute units: | 14 |
Supported Technologies:
| DirectX: | 11 | ||
| OpenGL: | 4.4 | ||
| OpenCL: | 1.2 | ||
| AMD Eyefinity, AMD Crossfire | |||
Performance
| Pixel fillrate: | 28.8 (GP/s) |
| Texture fillrate: | 50.4 (GT/s) |
| Thermal Design Power (TDP,Max): | 151 W |
| Release price (USD): | 239 USD |
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