AMD Radeon HD 6870 vs Intel Iris Plus Graphics 645
What is the difference between AMD Radeon HD 6870 and Intel Iris Plus Graphics 645. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Barts | GPU Name | Coffee Lake GT3e |
| TeraScale 2 | Architecture | Generation 9.5 |
| TSMC | Foundry | Intel |
| 40 nm | Process Size | 14 nm+++ |
| 1,700 million | Transistors | unknown |
| 255 mm² | Die Size | unknown |
Graphics Card
| Oct 21st, 2010 | Release Date | Oct 7th, 2019 |
| Northern Islands (HD 6800) | Family | HD Graphics-M (Coffee Lake) |
| End-of-life | Production | Active |
| PCIe 2.0 x16 | Bus Interface | Ring Bus |
Memory
| 1024 MB | Memory Size | System Shared |
| GDDR5 | Memory Type | System Shared |
| 256 bit | Memory Bus | System Shared |
| 134.4 GB/s | Bandwidth | System Dependent |
Performance
| 28.80 GPixel/s | Pixel fillrate | 6.300 GPixel/s |
| 50.40 GTexel/s | Texture fillrate | 50.40 GTexel/s |
| 2.016 TFLOPS | FP32 (float) performance | 806.4 GFLOPS |
Clock Speeds
| 1050 MHz 4.2 Gbps effective | Memory Clock | System Shared |
Render Config
| 1120 | Shading Units | 384 |
| 56 | TMUs | 48 |
| 32 | ROPs | 6 |
Board Design
| Dual-slot | Slot Width | IGP |
| 151 W | Thermal design power (TDP) | 15 W |
| 2x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | No outputs |
API support
| 11.2 (11_0) | DirectX | 12 (12_1) |
| 4.4 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| N/A | Vulkan | 1.2 |
| 5.0 | Shader Model | 6.4 |