AMD has informed their partners that the new launch date for Radeon HD 4800 (RV770) series is now 25th June therefore Radeon HD 4850 (RV770PRO) and Radeon HD 4870 (RV770XT) will launch together. AMD has also finalized the core clocks of the 4850 and 4870 cards and they will be clocked at 625MHz and 750MHz respectively. Radeon HD 4870 with GDDR5 is expected to perform 1.3x better than the Radeon HD 4850 with GDDR3.

AMD has informed their partners that the new launch date for Radeon HD 4800 (RV770) series is now 25th June therefore Radeon HD 4850 (RV770PRO) and Radeon HD 4870 (RV770XT) will launch together. AMD has also finalized the core clocks of the 4850 and 4870 cards and they will be clocked at 625MHz and 750MHz respectively. Radeon HD 4870 with GDDR5 is expected to perform 1.3x better than the Radeon HD 4850 with GDDR3.