AMD Radeon RX 640 Mobile
| General information | |
| Vendor | AMD |
| Released | 2019 |
| Segment | Laptop |
| Type | DIntegratedscrete |
| Resolution | 4096 x 2304 |
| Graphics processor | |
| Architecture | GCN 4.0 |
| Core | Polaris 12 |
| Lithography | 14 nm |
| Number of transistors | 2200 million |
| Die Size | 103 mm² |
| Core frequency | 1287 MHz |
| Shading Units | 640 |
| ROPs | 16 |
| TMUs | 40 |
| Pixel Rate | 20.6 GPixel/s |
| Texture Rate | 51.5 GTexel/s |
| Memory | |
| Type | GDDR5 |
| Capacity | 4096 Mb |
| Frequency | 7000 MHz |
| Bus | 64 bit |
| Bandwidth | 56.0 GB/s |
| Supported technologies | |
| DirectX | 12.0 |
| OpenGL | 4.6 |
| OpenCL | 2.0 |
| Shader Model | 6.4 |
| Other | • ATI Eyefinity • AMD PowerTune • Vulkan API • AMD App Acceleration • AMD TrueAudio • AMD FreeSync • AMD Enduro • TressFX Hair • Radeon Chill • Radeon ReLive |





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