Product Compare
AMD Radeon Sky 500 vs AMD Radeon R9 M395 Mac Edition
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Mar 2013 | May 2015 |
| Generation | Radeon Sky | Crystal System |
| Type | Desktop | Mobile |
| Bus Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| Clock Speeds | ||
| Memory Clock | 1200 MHz | 1365 MHz |
| Memory | ||
| Memory Size | 4GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 153.6GB/s | 174.7GB/s |
| Render Config | ||
| Compute Units | 20 | 28 |
| Shading Units | 1280 | 1792 |
| TMUs | 80 | 112 |
| ROPs | 32 | 32 |
| L1 Cache | 16 KB (per CU) | |
| L2 Cache | 512 KB | |
| Theoretical Performance | ||
| Pixel Rate | 30.40 GPixel/s | 26.69 GPixel/s |
| Texture Rate | 76.00 GTexel/s | 93.41 GTexel/s |
| FP32 (float) | 2.432 TFLOPS | 2.989 TFLOPS |
| FP64 (double) | 152.0 GFLOPS | 373.6 GFLOPS |
| Graphics Processor | ||
| GPU Name | Pitcairn | Amethyst |
| GPU Variant | Pitcairn XT GL(215-0828073) | Amethyst PRO(216-0872004) |
| Architecture | GCN 1.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 2.8 billion | 5 billion |
| Die Size | 212 mm² | 366 mm² |
| Board Design | ||
| TDP | 150W | 250W |
| Suggested PSU | 450 W | |
| Outputs | 1x DisplayPort 1.2 | No outputs |
| Power Connectors | 1x 6-pin | None |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader Model | 5.1 | 6.3 |