AMD · 2009
AMD Mobility Radeon HD 4870
The AMD Mobility Radeon HD 4870 is a high-end mobile graphics card released in 2009, based on the TeraScale architecture and RV770 chip.
The AMD Mobility Radeon HD 4870 is a high-end mobile graphics card released in 2009. It is built on the TeraScale architecture using the RV770 GPU chip fabricated on a 55 nm process. The card features 800 shading units, a base clock of 550 MHz, and 1 GB of memory available in GDDR3 or GDDR5 types. The memory interface is 256-bit, providing a bandwidth of 89.6 GB/s. It connects via PCIe ×16 2.0 and supports DirectX 10.1 and OpenGL 3.3. Additional features include UVD2 for video decoding and PowerPlay 7.0 for power management. This card was designed for high-performance laptops and workstations.
Specifications
| Architecture unverified | TeraScale |
|---|---|
| GPU chip unverified | RV770 |
| Process node unverified | 55 nm |
| Shading units unverified | 800 |
| Base clock unverified | 550 MHz |
| Memory size unverified | 1 GB |
| Memory type unverified | GDDR3, GDDR5 |
| Memory bus unverified | 256 bit |
| Memory bandwidth unverified | 89.6 GB/s |
| Bus interface unverified | PCIe ×16 2.0 |
| DirectX support unverified | 10.1 |
| OpenGL support unverified | 3.3 |
| Release date unverified | 2009-01-09 |
| Release year unverified | 2009 |
| Notes unverified | UVD2, PowerPlay 7.0 |