AMD RV870 specifications asserted that this high end GPU from ATI (AMD) company will be more powerful than RV770 by 20% and will count 960 stream processors and 48 textural blocks.
However, recently appeared information about new products on base of this video processor. As in the case with RV770, on base of RV870 will be released four video card, which will be called : HD 5850, HD 5870, HD 5850 X2 and HD 5870 X2.
With the 40- nm , the number of RV870 stream processor will be considerably increased. Instead of 960 then there will be 1200 pieces. The video processor frequency is equal to 900 MHz.
Paired with this powerful GPU (2,1 TFLOPs in floating point operations) the GDDR5 memory will work at 1100 MHz. The frequencies of HD 5870 X2 with two GPU will be higher than : 950/1150 MHz respectively. Access to the memory is made on the 256- bit bus. The memory productivity in HD 5870 is expected at the level of 137 GB/s with, and HD 5870 X2 : 286 GB/s.
Officially, AMD did not confirm such characteristics.