Soleron on 15 January 2010
| WilliamWatts said: The Radeon 4890 has high idle power consumption and load power consumption. Its also far less efficient at the latest Direct X 11 games. I've seen upwards of 20% improvement over the DX10 path for certain games. |
http://www.anandtech.com/video/showdoc.aspx?i=3658&p=7
http://www.pcgameshardware.com/screenshots/original/2009/11/Stalker-CoP-DX10-vs-DX11.png
That's all three DX11 games. First one has the cards about where I would expect from non-DX11 games, second has a large drop for DX11 and third a large rise. I wouldn't call that a win. Games developed entirely with DX11 from the start may well show a clear lead but there's few DX10-designed games 4 years after its release so it doesn't really matter.
The 4850 and 4890 offer better price/performance than 5750/5770. Conversely, the 5-series have much lower power consumption as you say. So choose which one of those you care most about.
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