AMD Radeon R9 280X2 vs AMD Radeon R9 290X2
What is the difference between AMD Radeon R9 280X2 and AMD Radeon R9 290X2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | Hawaii |
| Tahiti XTL (215-0821065) | Model number | Hawaii XT (215-0852000) |
| 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
| Unknown | Release Date | Jun 24th, 2014 |
| Volcanic Islands (R9 200) | Family | Volcanic Islands (R9 200) |
| End-of-life | Production | End-of-life |
| Sea Islands | Predecessor | Sea Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 3 GB x2 | Memory Size | 4 GB x2 |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit x2 | Memory Bus | 512 bit x2 |
Clock Speeds
| 1500 MHz 6 Gbps effective | Memory Clock | 1350 MHz 5.4 Gbps effective |
Render Config
| 128 x2 | TMUs | 176 x2 |
| 32 x2 | ROPs | 64 x2 |
Board Design
| 375 W | Thermal design power (TDP) | 580 W |
| 750 W | Suggested PSU | 950 W |
| 6x mini-DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| 3x 8-pin | Power Connectors | 4x 8-pin |
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 |