AMD Radeon R9 380X vs AMD Radeon R9 280X
What is the difference between AMD Radeon R9 380X and AMD Radeon R9 280X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Antigua | GPU Name | Tahiti |
| Antigua XT (215-0877016) | Model number | Tahiti XTL (215-0821065) |
| GCN 3.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 5,000 million | Transistors | 4,313 million |
| 366 mm² | Die Size | 352 mm² |
Graphics Card
| Nov 19th, 2015 | Release Date | Oct 8th, 2013 |
| Pirate Islands (R9 300) | Family | Volcanic Islands (R9 200) |
| Active | Production | End-of-life |
| 229 USD | Launch Price | 299 USD |
| Volcanic Islands | Predecessor | Sea Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 4 GB | Memory Size | 3 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 384 bit |
| 182.4 GB/s | Bandwidth | 288.0 GB/s |
Performance
| 31.04 GPixel/s | Pixel fillrate | 32.00 GPixel/s |
| 124.2 GTexel/s | Texture fillrate | 128.0 GTexel/s |
| 3.973 TFLOPS | FP32 (float) performance | 4.096 TFLOPS |
| 248.3 GFLOPS (1:16) | FP64 (double) performance | 1,024 GFLOPS (1:4) |
Clock Speeds
| 1425 MHz 5.7 Gbps effective | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 2048 | Shading Units | 2048 |
| 128 | TMUs | 128 |
| 32 | ROPs | 32 |
| 32 | Compute Units | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 768 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 221 mm 8.7 inches | Length | 275 mm 10.8 inches |
| 111 mm 4.4 inches | Width | 109 mm 4.3 inches |
| 190 W | Thermal design power (TDP) | 250 W |
| 450 W | Suggested PSU | 600 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| 2x 6-pin | Power Connectors | 1x 6-pin + 1x 8-pin |
| C766, C784 | Board Number | C386 |
API support
| 12 (12_0) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 2.0 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 6.3 | Shader Model | 5.1 |