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On GeForce RTX 3080/3090 graphics cards, Nvidia has decided to reinvent the concept of a “reference” PCB. In previous generations, the company’s AIB partners used the same PCB as the Founders Edition models with an alternative cooling system. Now many difficulties arise due to the design features of the GeForce RTX 3080/3090 FE, in particular the V-notch and the 12-pin power connector.
PG133 board for GeForce RTX 3080 Founders Edition
Many GeForce RTX 3080 and RTX 3090 graphics cards from Nvidia’s AIB partners will use PG132 reference PCB. In them, the chipmaker dropped the V-shaped cutout and also put two 8-pin PCI-E power connectors on the end. For Founders Edition models, there are separate printed circuit boards with codes PG133 and PG136.
If we talk about the differences between the boards for the GeForce RTX 3080 and RTX 3090 reference, the first thing that stands out is the lack of an NVLink connector. As you know, only the flagship of the Nvidia Ampere family can work in pairs.
The PG132 variant for the GeForce RTX 3080 was missing a few key nodes, for example the power system elements and GDDR6X chips. At the same time, the GeForce RTX 3090 has all the seats for memory chips, including those located at the rear.
PG132 board for GeForce RTX 3080 reference
Nvidia’s AIB partners are reportedly working on a version of the GeForce RTX 3080 with a 20-gigabyte video buffer, in which the GDDR6X modules will also be soldered on the back. Its launch should take place after the formal debut of the AMD Radeon RX 6000 graphics cards.
In addition, the lack of some of the electronic components of the power system in the GeForce RTX 3090 is striking. It is possible that they will be soldered on the hypothetical Titan RTX Ampere accelerator.
PG132 board for GeForce RTX 3090 reference
Source:
VideoCardz
