According to existing information, AMD company  prepares video card top- class : radeon 5870 X2. This development will bring not only high performance, but also high level of heat emission.
Associate asserts that the TDP of this accelerator will be equal to 376 W , while usual single-processor version, Radeon 5870, has the TDP level 180 W.
For comparison are also given TDP values  of the 3d- accelerators radeon 5850 (170 W with GPU frequency 725 MHz) and Radeon HD 4870 X2 (286 W). AMD will try to reduce the TDP in Radeon 5870 X2 at least to 300 W in order to ensure a sufficient power and adequate cooling .
The  PCI- E can ensure up to 75 W of energy, plus it is possible to begin to use 8 pin cable ensuring additional 75 or 150 W. Using two 6 pin power cables . The radeon 5870 X2 will be able to obtain 225 W , and in case of 6 + 8 power diagram the power will be 300 W…