PCB Design of ASUS MARS III Graphics Card Surfaced

On our visit to ASUS graphics factory in Suzhou, we found some information about the graphics card——Mars III. The card is based on dual-GK104 core, actually it has been displayed at Computex 2012, but whether the graphics card will be released is unknown.

PCB Design of ASUS MARS III Graphics Card (click to enlarge)

PS: This is just a sample showcased at ComputeX 2012, which doesn’t mean Mars III would come out exactly like that.

The PCB layout of Mars III is close to that of Mars II, two cores are arranged at the two sides of PCB, but GK104 looks much more smaller than GF110, there are 21-phase super alloy power supply in the middle, each GPU employs 10-phase power supply, one independent phase is supposed to be used for bridge chip. Mars II uses NF200, while Mars III supports PCI-E 3.0, so Mars III is possible to use PLX-based PEX8747 instead of NF200. The card packs 8GB memory, 16 memory chips at the front and back side, respectively.

The back side of the PCB (click to enlarge)

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