Radeon HD 4890
AMD
Catalog context
Within its series, the Radeon HD 4890 ranks 30th of 120 for FP32 throughput and 11th of 181 for memory capacity. Its 190 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 | April 2, 2009 |
|---|---|
| Series | Radeon HD |
| Generation | — |
| Codename | RV790 XT |
| Form factor | desktop |
| Architecture | — |
| Process | 55 nm |
| Transistors | 959 million |
| Die size | 282 mm² |
| Shaders | 800 |
| TMUs | 40 |
| ROPs | 16 |
| SM count | — |
| Base clock | 850 MHz |
| Boost clock | — |
| Memory clock | 975 MHz |
| Memory | 2 GB |
| Memory type | GDDR5 |
| Bus width | 256 bit |
| Bandwidth | 124.8 GB/s |
| Pixel fill rate | 13.6 GP/s |
| Texture fill rate | 34 GT/s |
| FP32 | 1,360 GFLOPS |
| FP64 | 272 GFLOPS |
| TDP | 190 W |
| Bus interface | PCIe 2.0 ×16 |
| External power required | — |
| Launch MSRP | 249 USD |
Source: Wikipedia, revision 1364362273 · catalog loaded 2026-08-16