Radeon HD 6990
| Manufacturer: | AMD |
| Series: | HD 6xxx (Northern Islands) |
| Codename: | Antilles XT |
| Release date: | 2011. March 08. |
| Die count: | 2 |
| Die size: | 2x 389 mm2 |
| Fab: | 40 nm |
| Transistors: | 2x 2640 millions |
| Bus interface: | PCI-E 2.1 x16 |
Clock rates
| Core clock: | 830 MHz |
| Memory clock: | 1250 MHz |
| Effective memory clock (DDR): | 10000 MHz |
Memory
| Memory size: | 2x 2048 MB |
| Memory bus type: | GDDR5 |
| Memory bus width: | 2x 256 bit |
| Memory bandwidth (maximum): | 2x 160 GB/s |
Core units
| Unified shader units: | 2x 1536 |
| Texture mapping units (TMU): | 2x 96 |
| Render output units (ROP): | 2x 32 |
| Compute units: | 2x 24 |
Supported Technologies:
| DirectX: | 11 | ||
| OpenGL: | 4.4 | ||
| OpenCL: | 1.2 | ||
| AMD Eyefinity, AMD Crossfire | |||
Performance
| Pixel fillrate: | 2x 26.5 (GP/s) |
| Texture fillrate: | 2x 79.6 (GT/s) |
| Thermal Design Power (TDP,Max): | 375 W |
| Release price (USD): | 699 USD |
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