Najnoviji info.Ni pod zivu glavu ne kupujte Dual Fan xfx.Design flaw.
http://forums.guru3d.com/showpost.ph...&postcount=141
http://www.tomshardware.co.uk/forum/...blem-reference
Hot VRMs, not VRAM is an issue with most axial fan design coolers. These coolers are actually cheaper to make than reference designs and often lack the large heat plate that covers all the VRMs and VRAM that dissipate the heat into the body of the shroud and the heatsink to be completely exhausted out of the system by the high static pressure of the blower fan.
VRM temps may be in spec but it's actually VRM temps that limit your overclock these days moreso than anything regarding the actual core voltage.
But we can note a few differences. First of all, the reference Radeon HD 7970 features 5+1 power circuit design with 6 phases for the GPU and 1 phase for the graphics memory. The power system is managed by a CHiL CHL8228G controller.
High-quality DirectFETs can be spotted on the PCB. We’ve seen them before on MSI’s graphics cards. They are superior to the Radeon HD 6970’s Volterra components in electrical resistance, inductance and heat dissipation. These chips can give their heat away both to the heatsink and to the PCB.