Radeon HD 4870
AMD
Catalog context
Within its series, the Radeon HD 4870 ranks 40th of 120 for FP32 throughput and 53rd of 181 for memory capacity. Its 150 W TDP is above the 75 W PCIe slot-power ceiling. The source does not record generation, architecture, sm count and boost clock, or 1 further field, for this variant.
| Launch date | June 25, 2008 |
|---|---|
| Series | Radeon HD |
| Generation | — |
| Codename | RV770 XT |
| Form factor | desktop |
| Architecture | — |
| Process | 55 nm |
| Transistors | 956 million |
| Die size | 256 mm² |
| Shaders | 800 |
| TMUs | 40 |
| ROPs | 16 |
| SM count | — |
| Base clock | 750 MHz |
| Boost clock | — |
| Memory clock | 900 MHz |
| Memory | 1 GB |
| Memory type | GDDR5 |
| Bus width | 256 bit |
| Bandwidth | 115.2 GB/s |
| Pixel fill rate | 12 GP/s |
| Texture fill rate | 30 GT/s |
| FP32 | 1,200 GFLOPS |
| FP64 | 240 GFLOPS |
| TDP | 150 W |
| Bus interface | PCIe 2.0 ×16 |
| External power required | — |
| Launch MSRP | 299 USD |
Source: Wikipedia, revision 1364362273 · catalog loaded 2026-08-16