20a NVIDIA GK104 PCB diagram leaked

Chinese websites have leaked a partial PCB drawing for NVIDIA's upcoming GK104 based graphics card, accompanied by pictures of a novel power connector solution.

Chinese websites have leaked a partial PCB drawing for NVIDIA's upcoming GK104 based graphics card, accompanied by pictures of a novel power connector solution.

20a NVIDIA GK104 PCB diagram leaked

The GPU and memory area have been blanked out. Fortunately, the rest of the drawing reveals important details about GK104. The PCB itself is of similar length to the GTX 580. However unlike GTX 480 and GTX 580, there is no room spared in the fan area, with the 5-phase VRM section filled to the brim. The PCB seems to be capable of 2 x 6-pin PCI-e + 8-pin power connectors, which could see this connector scheme recycled in a possible dual-GPU variant requiring 375W. Display outputs include 2xDVI, 1x HDMI and 1x DisplayPort. As expected, two SLI connectors are featured, for up to 4 way SLI (if supported).


20b NVIDIA GK104 PCB diagram leaked

In its single GPU GK104 form, it uses a stacked design featuring 2 x 6-pin PCI-e power connectors arranged on top of each other, driving upto 225W. However, certain samples and possibly overclocked variants may feature 8-pin+6-pin stacked – as is shown possible by the PCB drawing. The second single 6-pin connecter leads are left unused. In the stacked design, the top connector is flipped, so the 6-pin plug must be rotated 180 degrees to fit.

According to the latest rumours, the first GK104 based SKU is set to release later this month branded as GeForce GTX 670 Ti, offering performance between GTX 580 / HD 7950 and HD 7970.

Source: TechPowerUp