ATI Mobility Radeon HD 4870 X2 vs ATI Radeon HD 4830
What is the difference between ATI Mobility Radeon HD 4870 X2 and ATI Radeon HD 4830. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M98 | GPU Name | RV770 |
| M98 XT (216-0732023) | Model number | RV770 LE (215-0669075) |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 956 million | Transistors | 956 million |
| 256 mm² | Die Size | 256 mm² |
Graphics Card
| Jan 9th, 2009 | Release Date | Oct 21st, 2008 |
| M9x (Mobility HD 4800) | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| M8x | Predecessor | Radeon R600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 1024 MB x2 | Memory Size | 512 MB |
| GDDR5 | Memory Type | GDDR3 |
| 256 bit x2 | Memory Bus | 256 bit |
Clock Speeds
| 700 MHz 2.8 Gbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
| 550 MHz | GPU Clock | 575 MHz |
Render Config
| 40 x2 | TMUs | 32 |
| 16 x2 | ROPs | 16 |
Board Design
| No outputs | Display Connectors | 2x DVI 1x S-Video |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 | OpenGL | 3.3 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |