High-resolution PCB Pictures

These pictures are for the convenience of volt modders and people who would like to see all the finer details on the PCB. Feel free to link back to us and use these in your articles or forum posts.



High-res versions are also available (front, back).

Circuit Board (PCB) Analysis

While the RTX 3080 Suprim uses a mixture of UPI and OnSemi controllers, the RTX 3090 variant is build around Monolithic Power Systems MPS controllers, which are slightly better, but more expensive.


For GPU voltage, a 17-phase VRM configuration is installed, one more than on the RTX 3080.


MSI is using OnSemi NCP303151A DrMOS chips throughout the VRM capable of 50 A.


Memory voltage uses a 4-phase design and is generated by a UPI uS5650Q. Note the placement of the memory VRM phases—all spread out among the GPU power phases. The reason seems to be improved thermal performance and better voltage stability.


The GDDR6X memory chips are made by Micron and carry the model number D8BGX, which decodes to MT61K256M32JE-21. They are specified to run at 1313 MHz (21 Gbps GDDR6X effective).

GDDR6X doubles the data rate once again over GDDR6. It no longer transmits one bit of information by setting the voltage to either "on" or "off," but instead sends two bits of information at the same time by using four different voltage levels.


NVIDIA's GA102 graphics processor is the company's second Ampere architecture chip; the first one targeted at GeForce gamers. It is produced on a 8 nanometer process at Samsung and has a transistor count of 28 billion with a die size of 628 mm².