picture courtesy of ATI-forum
There is no secrets about Radeon HD 5800 series graphics.Next,lets look at their power consumption.According to official information,Radeon HD 5870 with 1GB GDDR5 will consume 27W in idle state.While it will need 188W in full load state.Coming in 1GB/2GB GDDR5 two flavors,the latter will has slightly higher power consumption than former.
However,it is reported that low-end Radeon HD 5850 has 27W power consumption in idle state,170W in full load state from other sources.
Radeon HD 5870/5850 are based on Cypress/RV870 core. The former has 1600 stream processors、80 texture unit.While the latter has 1440 SP and 72 texture unit.Both of them has a maximum 110W of core power consumption.
Comparatively, Radeon HD 4890 consumes up to 190W power consumption，Radeon HD 4870 is 157W，Radeon HD 4850 is said to have 110W.
Radeon HD | Radeon HD | Radeon HD | Radeon HD | Radeon HD | |
Process | 40nm | 55nm | |||
Standby power consumption | 27W | Up to 60W | |||
core maximum power consumption | 110W | 110W | N/A | N/A | N/A |
maximum power consumption | 188W | 170W | 190W | 157W | 110W |
