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According to official information, extended among AMD partners ( with nondisclosure agreement :-) ) . The announcement of Radeon HD 4870 X2 is planned for the end of the third quarter. AMD rejected the idea about the release of radeon HD 4850 version with GDDR5 memory - such video card would create some internal competition. Furthermore, we can ascertain that all graphical solutions from AMD with GDDR5 memory will be released after June, and Radeon HD 4850 will become the first product, which will appear in sale immediately after the announcement.
Thus, let us transfer all known at the given moment characteristics of video card on base of RV770 chip :
- Radeon HD 4870 - > 55 nm technical process, frequency 850/1050/3870 MHz, 480 stream processors, 32 textural units, 16 units Rop's, 256- bit system bus, 1 Gb memory GDDR- 5, TDP is not more than 157 W, price $349;
- Radeon HD 4850 - > 55 nm technical process, frequency 625/825/2286 MHz, 480 stream processors, 32 textural units, 16 units Rop's, 256- bit system bus, 512 mb memory GDDR- 3, TDP is not more than 114 W, price $249.
It is necessary to assume that Radeon HD 4870 will also exist in the 512 mb version with GDDR5 memory . The announcement of both video card is planned on 18 June, but Radeon HD 4870 will appear in sale later. Related Products :
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