Intel Iris Pro Graphics 580 vs Intel Iris Pro Graphics P555
Graphics Processor
| GPU model | Skylake GT4e | Skylake GT3e |
|---|---|---|
| Architecture | Generation 9.0 | Generation 9.0 |
| Foundry | Intel | Intel |
| Manufacturing process | 14 nm+ | 14 nm+ |
| Number of transistors | unknown | unknown |
| Die size | unknown | unknown |
Integrated Graphics
| Release date | Sep 1st, 2015 | Sep 1st, 2015 |
|---|---|---|
| Generation | HD Graphics-M (Skylake) | HD Graphics-W (Skylake) |
| Production | Active | Active |
| Interface | Ring Bus | Ring Bus |
| Reviews | 1 in our database | 1 in our database |
Clocks
| Base clock | 350 MHz | 350 MHz |
|---|---|---|
| Boost clock | 950 MHz | 1000 MHz |
| Memory clock | System Shared | System Shared |
Memory Configuration
| Memory size | System Shared | System Shared |
|---|---|---|
| Memory type | System Shared | System Shared |
| Memory bus width | System Shared | System Shared |
| Bandwidth | System Dependent | System Dependent |
Render Configuration
| Shading units | 576 | 384 |
|---|---|---|
| TMUs | 72 | 48 |
| ROPs | 9 | 6 |
| Execution units | 72 | 48 |
Performance
| Pixel rate | 8.550 GPixel/s | 6.000 GPixel/s |
|---|---|---|
| Texture rate | 68.40 GTexel/s | 48.00 GTexel/s |
| FP16 (half) performance | 2.189 TFLOPS (2:1) | 1.536 TFLOPS (2:1) |
| FP32 (float) performance | 1,094 GFLOPS | 768.0 GFLOPS |
| FP64 (double) performance | 273.6 GFLOPS (1:4) | 192.0 GFLOPS (1:4) |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | 15 W | 15 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (12_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
