ATI Radeon Xpress 2100 IGP vs Intel Iris Pro Graphics P555
Graphics Processor
| GPU model | RS780 | Skylake GT3e |
|---|---|---|
| Architecture | TeraScale | Generation 9.0 |
| Manufacturing process | 65 nm | 14 nm+ |
| Number of transistors | 180 million | unknown |
| Die size | 85 mm² | unknown |
| Foundry | — | Intel |
Integrated Graphics
| Release date | Mar 4th, 2008 | Sep 1st, 2015 |
|---|---|---|
| Generation | Radeon IGP (2000) | HD Graphics-W (Skylake) |
| Production | End-of-life | Active |
| Interface | PCIe 1.0 x16 | Ring Bus |
| Reviews | — | 1 in our database |
Clocks
| GPU clock | 500 MHz | — |
|---|---|---|
| Memory clock | System Shared | System Shared |
| Base clock | — | 350 MHz |
| Boost clock | — | 1000 MHz |
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 | 40 | 384 |
|---|---|---|
| TMUs | 4 | 48 |
| ROPs | 4 | 6 |
| Compute units | 2 | — |
| Execution units | — | 48 |
Performance
| Pixel rate | 2.000 GPixel/s | 6.000 GPixel/s |
|---|---|---|
| Texture rate | 2.000 GTexel/s | 48.00 GTexel/s |
| FP32 (float) performance | 40.00 GFLOPS | 768.0 GFLOPS |
| FP16 (half) performance | — | 1.536 TFLOPS (2:1) |
| FP64 (double) performance | — | 192.0 GFLOPS (1:4) |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | unknown | 15 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 10.0 (10_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.0 | 3.0 |
| Vulkan | — | 1.2 |
| Shader model | 4.1 | 6.4 |
