المصدر : tomshardware.com.tw
With close to the annual COMPUTEX show, individual companies were secretly notice there will be new products coming out in this exhibition, and the two major card manufacturer is the same, with a part of AMD, as early as the ATI Radeon HD 3800 Series listed, Jinghai reported is the real high-end, code-named RV770 family of products has not been exposed, now that we have received official confirmation of the standard features of documents, before the Internet part of the message should be spread not correct, and third-party Also said that this year expected to be in the COMPUTEX show Live Demo show, to be six months from AMD will be officially published RV770 family.
RV770 family were present to confirm a Radeon HD 4870,4850, ATI by AMD for the past model named the two principles that can be high or low performance, the performance of two products beyond Radeon HD 3870X2, but according to AMD said that the existing Radeon HD 3800 series of products targeted Will be adjusted in order to mainstream market, the price would be cut (for consumers is a major Liduoxiaoxi), together with technical support DirectX 10.1, 55-nanometer GPU, PCI-E2.0, UVD technology, and other related specifications, Expected to be a competitor in the mainstream of the band at this stage only the GeForce 9600 series of strong sales pressure.
Radeon HD 4870,4850 by the second generation TSMC 55-nanometer process GPU, improved first-generation part missing, with Terascale graphics engine, multi-display support CrossfireX operating structure, DirectX 10.1, physical speed up the game, dynamic geometry acceleration, 24 X CFAA technology , Which UVD2 (Universal Video Decoder) improved the processing speed of the older generation, by adding support for MPEG2, opened under the new 2560 x1600 HDCP function, as of now, NVIDIA PureVideo HD technology used for high-definition video processing efficiency still lose ATI UVD technology .
Currently the computer component blowing an "energy saving" fashion, Radeon HD 4870,4850 PowerPlayer support the sophisticated features also provide 3-Purpose frequency design, dynamic energy-saving design can be as GPU in the low, middle and high-power status in the three automatic adjustment Core clock, memory frequency and voltage to further reduce system temperature and fan noise.
Radeon HD 4870 core and memory clock frequencies have not yet confirmed, is most curious about the outside world is carrying Qimonda production GDDR5 memory Qimonda as the first GDDR5 graphics memory of AMD AMD / ATI Radeon HD 4800 Series Adoption of a single standard for 16 Mx32, with 256 bit 512MB capacity, the third party also said that although this card is the first allocation of GDDR5 memory card, although the related impact on manufacturing costs, but it is not difficult to see AMD in developing products Gall of the former, as overclocking and performance remains to be seen, Radeon HD 4870 Dual-Slot used air-cooled radiators, the two groups to be 6 - PIN card power, for electricity, AMD recommend the use of more than 500 W power supply , To provide double-Dual-Link DVI video interface, Radeon display driver 8.49 version drivers support the first time, after the 8.501 version is available Windows XP, VISTA test, AMD Radeon HD 4870 is expected at US $ 329元.
Radeon HD 4850 is carrying a single specification for 16 Mx32 of GDDR3 memory, a total of 256 bit 512MB capacity, a Sing-Slot air-cooled radiators, providing dual-Dual-Link DVI video interface through the new DVI to HDMI Joints can be reached 7.1-channel audio output, takes a group of 6 - PIN card power, the electricity demand of the original proposal, the single card for the 450 W, two CrossfireX the implementation of multi-display operation structure needs a 550 W power supply , At the same time can provide two sets of 6 - PIN card power supply, AMD Radeon HD 4850 is expected at US $ 229元. 根據協力廠商表示，GeForce 9800GTX目前賣$329，內部實測Radeon HD 4850的效能相當接近，但價格卻少了US ＄100元，因此預期會讓NVIDA考量以降價來應戰。 According to a third party that, GeForce 9800GTX now sell $ 329, the internal Radeon HD 4850 measured the performance of very close, but the price is less US $ 100 yuan, is expected to consider NVIDA will cut prices to fight.