Intel Iris Pro Graphics P555 vs AMD Radeon E8870
What is the difference between Intel Iris Pro Graphics P555 and AMD Radeon E8870. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Skylake GT3e | GPU Name | Saturn |
| Generation 9.0 | Architecture | GCN 2.0 |
| Intel | Foundry | TSMC |
| 14 nm+ | Process Size | 28 nm |
| unknown | Transistors | 2,080 million |
| unknown | Die Size | 160 mm² |
Graphics Card
| Sep 1st, 2015 | Release Date | Sep 29th, 2015 |
| HD Graphics-W (Skylake) | Family | Embedded (8000) |
| Active | Production | Active |
| Ring Bus | Bus Interface | MXM-B (3.0) |
Memory
| System Shared | Memory Size | 4 GB |
| System Shared | Memory Type | GDDR5 |
| System Shared | Memory Bus | 128 bit |
| System Dependent | Bandwidth | 96.00 GB/s |
Performance
| 6.000 GPixel/s | Pixel fillrate | 16.00 GPixel/s |
| 48.00 GTexel/s | Texture fillrate | 48.00 GTexel/s |
| 768.0 GFLOPS | FP32 (float) performance | 1.536 TFLOPS |
| 192.0 GFLOPS (1:4) | FP64 (double) performance | 96.00 GFLOPS (1:16) |
Clock Speeds
| System Shared | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 384 | Shading Units | 768 |
| 48 | TMUs | 48 |
| 6 | ROPs | 16 |
Board Design
| IGP | Slot Width | MXM Module |
| 15 W | Thermal design power (TDP) | 75 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (12_1) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 3.0 | OpenCL | 2.0 |
| 1.2 | Vulkan | 1.2 |
| 6.4 | Shader Model | 6.3 |