Today AMD launches their new Radeon HD 4850 and 4870 Series. Both cards are built around the new RV770 graphics processor. The GPU comes with a largely increased number of shaders: 800 vs. 320 on the previous generation. Another new feature is support for GDDR5 which will be included in the Radeon HD 4870 only, not in the 4850. AMD's rendering pipeline has also evolved greatly with vast improvements to AA performance and texturing. Another new feature is the inclusion of UVD 2 which supports dual HD streams decoding. The HD 4870 has lower memory clocks because it uses GDDR5 which offers twice the bandwidth clock-to-clock when compared to GDDR3.
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*Source: techPowerUp (
http://www.techpowerup.com/reviews/Powercolor/HD_4850)*
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