Product Compare
AMD Radeon R9 M485X vs AMD Radeon HD 6990
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | May 2016 | Mar 2011 |
| Generation | Crystal System | Northern Islands |
| Type | Mobile | Desktop |
| Bus Interface | MXM-B (3.0) | PCIe 2.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1250 MHz | 1250 MHz |
| Memory | ||
| Memory Size | 8GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 160.0GB/s | 160.0GB/s |
| Render Config | ||
| Compute Units | 32 | 24 |
| Shading Units | 2048 | 1536 |
| TMUs | 128 | 96 |
| ROPs | 32 | 32 |
| L1 Cache | 16 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 23.14 GPixel/s | 26.56 GPixel/s |
| Texture Rate | 92.54 GTexel/s | 79.68 GTexel/s |
| FP16 (half) | 2.961 TFLOPS | |
| FP32 (float) | 2.961 TFLOPS | 2.550 TFLOPS |
| FP64 (double) | 185.1 GFLOPS | 637.4 GFLOPS |
| Graphics Processor | ||
| GPU Name | Amethyst | Antilles |
| GPU Variant | Amethyst XT | Antilles XT(215-0807027) |
| Architecture | GCN 3.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 40 nm |
| Transistors | 5 billion | 2.64 billion |
| Die Size | 366 mm² | 389 mm² |
| Board Design | ||
| TDP | 250W | 375W |
| Outputs | No outputs | 1x DVI4x mini-DisplayPort 1.2 |
| Power Connectors | None | 2x 8-pin |
| Suggested PSU | 750 W | |
| Graphics Features | ||
| DirectX | 12 (12_0) | 11.2 (11_0) |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2 | N/A |
| Shader Model | 6.3 | 5.0 |