AMD Radeon HD 8990 OEM vs AMD Radeon HD 7990
What is the difference between AMD Radeon HD 8990 OEM and AMD Radeon HD 7990. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Malta | GPU Name | Malta |
| Malta XT (215-0849026) | Model number | Malta XT (215-0849026) |
| GCN 1.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 4,313 million |
| 365 mm² | Die Size | 365 mm² |
Graphics Card
| Apr 24th, 2013 | Release Date | Apr 24th, 2013 |
| Sea Islands (HD 8900) | Family | Southern Islands (HD 7900) |
| End-of-life | Production | End-of-life |
| Southern Islands | Predecessor | Northern Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 3 GB x2 | Memory Size | 3 GB x2 |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit x2 | Memory Bus | 384 bit x2 |
Clock Speeds
| 950 MHz | Base Clock | 950 MHz |
| 1000 MHz | Boost Clock | 1000 MHz |
| 1500 MHz 6 Gbps effective | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 128 x2 | TMUs | 128 x2 |
| 32 x2 | ROPs | 32 x2 |
Board Design
| 307 mm 12.1 inches | Length | 304 mm 12 inches |
| 375 W | Thermal design power (TDP) | 375 W |
| 750 W | Suggested PSU | 750 W |
| 1x DVI 4x mini-DisplayPort | Display Connectors | 1x DVI 4x mini-DisplayPort |
| 2x 8-pin | Power Connectors | 2x 8-pin |
API support
| 12 (11_1) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |