AMD Radeon HD 7970 GHz Edition vs AMD Radeon R9 390 X2
What is the difference between AMD Radeon HD 7970 GHz Edition and AMD Radeon R9 390 X2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | Grenada |
| Tahiti XT2 (215-0821065) | Model number | Grenada PRO (215-0880030) |
| GCN 1.0 | Architecture | GCN 2.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 6,200 million |
| 352 mm² | Die Size | 438 mm² |
Graphics Card
| Jun 22nd, 2012 | Release Date | Sep 3rd, 2015 |
| Southern Islands (HD 7900) | Family | Pirate Islands (R9 300) |
| End-of-life | Production | Active |
| 499 USD | Launch Price | 1,399 USD |
| Northern Islands | Predecessor | Volcanic Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 3 GB | Memory Size | 8 GB x2 |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 512 bit x2 |
Clock Speeds
| 1500 MHz 6 Gbps effective | Memory Clock | 1350 MHz 5.4 Gbps effective |
Render Config
| 128 | TMUs | 160 x2 |
| 32 | ROPs | 64 x2 |
Board Design
| 300 W | Thermal design power (TDP) | 580 W |
| 700 W | Suggested PSU | 950 W |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| 1x 6-pin + 1x 8-pin | Power Connectors | 4x 8-pin |
| C386-37 | Board Number | C671 |
API support
| 12 (11_1) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 2.0 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 6.3 |