Radeon HD 7990
| Manufacturer: | AMD |
| Series: | HD 7xxx (Southern Islands) |
| Codename: | Malta |
| Release date: | 2013. April 23. |
| Die count: | 2 |
| Die size: | 2x 352 mm2 |
| Fab: | 28 nm |
| Transistors: | 2x 4313 millions |
| Bus interface: | PCI-E 3.0 x16 |
Clock rates
| Core clock: | 950 MHz |
| Core clock (Boost): | 1000 MHz |
| Memory clock: | 1500 MHz |
| Effective memory clock (DDR): | 12000 MHz |
Memory
| Memory size: | 2x 3072 MB |
| Memory bus type: | GDDR5 |
| Memory bus width: | 2x 384 bit |
| Memory bandwidth (maximum): | 2x 288 GB/s |
Core units
| Unified shader units: | 2x 2048 |
| Texture mapping units (TMU): | 2x 128 |
| Render output units (ROP): | 2x 32 |
| Compute units: | 2x 32 |
Supported Technologies:
| DirectX: | 12 | ||
| OpenGL: | 4.4 | ||
| OpenCL: | 1.2 | ||
| AMD Eyefinity, AMD CrossFire™ | |||
Performance
| Pixel fillrate: | 2x 32 (GP/s) |
| Texture fillrate: | 2x 128 (GT/s) |
| Thermal Design Power (TDP,Max): | 375 W |
| Release price (USD): | 1000 USD |
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