ATI Radeon HD 4870 X2
It is true that now, after already fanfare formal presentation of graphic adapters NVIDIA GeForce GTX 260/280 and ATI Radeon HD 4850/4870, all attention demanding gamers and computer enthusiasts riveted to the coming “Double monsters” ATI Radeon HD 4870 X2 from Advanced Micro Devices (AMD), which has all chances to claim the throne of the King of the three-dimensional graphics. It is natural that in recent weeks in our news tape, we often turned to this subject, literally on krupitsam collecting information on the technical characteristics of this high-performance solutions and trying to ascertain the exact date of his release. Thus, we have been able to show you the first photos not only engineering sample, but also ready to work version of new items, as well as introduce brand showrooms slides, veil veil over product specifications.
Now, thanks to the developers July 14, as scheduled, lifted the ban on publication in the press reviews of his brainchild, we finally something, we have the opportunity to summarize all that is known at this time of the ATI Radeon HD 4870 X2.
So, the video board formed on printed in black and is based on the pair set up on 55 - nm chip technology RV770 XT, each with 800 streaming processors. Between chip is an updated hardware switch for PCI Express from the company PLX Technology, with the index PEX8647 and supply support PCI Express 2.0. Total GDDR5 memory from 256 - bit interface is equal to 1 GB (2 x 512 MB) or 2 GB (2 x 1 GB), but rumors go, that in the future may appear and changed, equipped with less expensive type of memory GDDR3. In doing so, the memory bandwidth reaches 230 Gb / s, while its effectiveness is equal to 3600 MHz frequency. As for the working frequency of graphic cores, it is 750 MHz.
It should also be noted that the ATI Radeon HD 4870 X2 has been strengthened subsystem nutrition, and needs video chip served two separate three phase circuits with reels inductance in SMD-hull 59PR9853 from Vitec Electronics, while catering for GDDR5 memory chips has two channels with reels Pulse PA0511. But additional food accelerator can be arranged through the present he has special 6 - and 8 - contact connectors.
Now draw attention to product applications in the cooling system. It has designed and staffed sufficiently large fan.
Another is to point to the existence of one CrossFire-connector, that if you want to add to the ATI Radeon HD 4870 X2 one or two video ATI Radeon HD 4870, a second and the same model (good, there is support technology company ATI CrossFireX Multi-GPU Technology).
Among other features of products would like to emphasize the use of tires PCI Express 2.0 x16, compatibility with DirectX 10.1 Shader Model 4.1, support for HDMI, HDCP and 7.1-channel sound, “friendship” with such advanced technology brand, as the second generation ATI PowerPlay and ATI Avivo HD Technology with an enhanced integrated video Unified Video Decoder 2, as well as the presence abandoned at the back cover of two ports of Dual-Link DVI and one HDTV-out.
If, however, talk about product performance review, the first independent tests carried out showed that he had an average of 50% ahead of NVIDIA GeForce GTX 280, and in some gaming applications difference in productivity can go and up to 80%.
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[…] the filing with the resource TweakTown we have seen in reverse. The photos showed video card Radeon HD 4870 X2, learned from the finished game system, but since the announcement will take place only next week, […]