AMD Radeon RX 580 Mobile vs AMD Radeon RX 580X Mobile
Graphics Processor
| GPU model | Polaris 20 | Polaris 20 |
|---|---|---|
| GPU variant | Polaris 20M XT | Polaris 20M XT |
| Architecture | GCN 4.0 | GCN 4.0 |
| Foundry | GlobalFoundries | GlobalFoundries |
| Manufacturing process | 14 nm | 14 nm |
| Number of transistors | 5,700 million | 5,700 million |
| Die size | 232 mm² | 232 mm² |
Mobile graphics
| Release date | Apr 18th, 2017 | Apr 11th, 2018 |
|---|---|---|
| Generation | Mobility Radeon (RX M500) | Mobility Radeon (RX M500X) |
| Production | Active | Active |
| Interface | MXM-B (3.0) | MXM-B (3.0) |
| Predecessor | Crystal System | Crystal System |
Clocks
| Base clock | 1000 MHz | 1000 MHz |
|---|---|---|
| Boost clock | 1077 MHz | 1077 MHz |
| Memory clock | 2000 MHz 8 Gbps effective | 2000 MHz 8 Gbps effective |
Memory Configuration
| Memory size | 8 GB | 8 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 256.0 GB/s | 256.0 GB/s |
Render Configuration
| Shading units | 2304 | 2304 |
|---|---|---|
| TMUs | 144 | 144 |
| ROPs | 32 | 32 |
| Compute units | 36 | 36 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 2 MB |
Performance
| Pixel rate | 34.46 GPixel/s | 34.46 GPixel/s |
|---|---|---|
| Texture rate | 155.1 GTexel/s | 155.1 GTexel/s |
| FP16 (half) performance | 4.963 TFLOPS (1:1) | 4.963 TFLOPS (1:1) |
| FP32 (float) performance | 4.963 TFLOPS | 4.963 TFLOPS |
| FP64 (double) performance | 310.2 GFLOPS (1:16) | 310.2 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | MXM Module | MXM Module |
|---|---|---|
| TDP | 100 W | 100 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
