Sapphire releases a HD 4850 with new PCB
For some weeks after the launch of the HD 4800 series OEMs were not allowed to make graphics cards with an individual PCB design. In the meantime this restriction was eased and after Powercolor it is Sapphire, according to Expreview, to release a custom PCB.
The most obvious difference to the default layout is the position of the components. The voltage converters for example aren't on the right side of the GPU anymore but on the left next to the display connectors. Accordingly VRAM and video chip are sliding to the right. Additionally Sapphire uses a cooler, which has a copper core, aluminum cover and fins and bears a slight resemblance to Intel's boxed cooler. The video memory of the Radeon HD 4850 is not covered by a cooler but the voltage converters do bear a passive fin cooler.
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