AMD Stream Processor vs ATI Mobility Radeon HD 3870 X2
What is the difference between AMD Stream Processor and ATI Mobility Radeon HD 3870 X2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| R580 | GPU Name | M88 |
| R500 | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 90 nm | Process Size | 55 nm |
| 384 million | Transistors | 666 million |
| 352 mm² | Die Size | 192 mm² |
Graphics Card
| 2006 | Release Date | Sep 1st, 2008 |
| FireStream | Family | M8x (Mobility HD 3800) |
| End-of-life | Production | End-of-life |
| PCIe 1.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB | Memory Size | 512 MB x2 |
| GDDR3 | Memory Type | GDDR3 |
| 256 bit | Memory Bus | 256 bit x2 |
Clock Speeds
| 648 MHz 1296 Mbps effective | Memory Clock | 850 MHz 1700 Mbps effective |
| 594 MHz | GPU Clock | 660 MHz |
Render Config
| 16 | TMUs | 16 x2 |
| 16 | ROPs | 16 x2 |
Board Design
| 2x DVI 1x S-Video | Display Connectors | No outputs |
API support
| 9.0c (9_3) | DirectX | 10.1 (10_1) |
| 2.1 (full) 3.0 (partial) | OpenGL | 3.3 |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 3.0 | Shader Model | 4.1 |