Intel Iris Pro Graphics P580 vs AMD Radeon HD 6950
What is the difference between Intel Iris Pro Graphics P580 and AMD Radeon HD 6950. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Skylake GT4e | GPU Name | Cayman |
| Generation 9.0 | Architecture | TeraScale 3 |
| Intel | Foundry | TSMC |
| 14 nm+ | Process Size | 40 nm |
| unknown | Transistors | 2,640 million |
| unknown | Die Size | 389 mm² |
Graphics Card
| Sep 1st, 2015 | Release Date | Dec 14th, 2010 |
| HD Graphics-WM (Skylake) | Family | Northern Islands (HD 6900) |
| Active | Production | End-of-life |
| Ring Bus | Bus Interface | PCIe 2.0 x16 |
Memory
| System Shared | Memory Size | 2 GB |
| System Shared | Memory Type | GDDR5 |
| System Shared | Memory Bus | 256 bit |
| System Dependent | Bandwidth | 160.0 GB/s |
Performance
| 9.450 GPixel/s | Pixel fillrate | 25.60 GPixel/s |
| 75.60 GTexel/s | Texture fillrate | 70.40 GTexel/s |
| 1,210 GFLOPS | FP32 (float) performance | 2.253 TFLOPS |
| 302.4 GFLOPS (1:4) | FP64 (double) performance | 563.2 GFLOPS (1:4) |
Clock Speeds
| System Shared | Memory Clock | 1250 MHz 5 Gbps effective |
Render Config
| 576 | Shading Units | 1408 |
| 72 | TMUs | 88 |
| 9 | ROPs | 32 |
Board Design
| IGP | Slot Width | Dual-slot |
| 15 W | Thermal design power (TDP) | 200 W |
| No outputs | Display Connectors | 2x DVI 1x HDMI 2x mini-DisplayPort |
API support
| 12 (12_1) | DirectX | 11.2 (11_0) |
| 4.6 | OpenGL | 4.4 |
| 3.0 | OpenCL | 1.2 |
| 1.2 | Vulkan | N/A |
| 6.4 | Shader Model | 5.0 |