Product Compare
AMD Radeon R9 285 vs AMD Radeon R9 380X
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2014 | Nov 2015 |
| Generation | Volcanic Islands | Pirate Islands |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1375 MHz | 1425 MHz |
| Memory | ||
| Memory Size | 2GB | 4GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 176.0GB/s | 182.4GB/s |
| Render Config | ||
| Compute Units | 28 | 32 |
| Shading Units | 1792 | 2048 |
| TMUs | 112 | 128 |
| ROPs | 32 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 29.38 GPixel/s | 31.04 GPixel/s |
| Texture Rate | 102.8 GTexel/s | 124.2 GTexel/s |
| FP16 (half) | 3.290 TFLOPS | 3.973 TFLOPS |
| FP32 (float) | 3.290 TFLOPS | 3.973 TFLOPS |
| FP64 (double) | 205.6 GFLOPS | 248.3 GFLOPS |
| Graphics Processor | ||
| GPU Name | Tonga | Antigua |
| GPU Variant | Tonga PRO(215-0851128) | Antigua XT(215-0877016) |
| Architecture | GCN 3.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 5 billion | 5 billion |
| Die Size | 366 mm² | 366 mm² |
| Board Design | ||
| TDP | 190W | 190W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Graphics Features | ||
| DirectX | 12 (12_0) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.0 |
| Vulkan | 1.2.170 | 1.2 |
| Shader Model | 6.5 | 6.3 |