ASUS GeForce RTX 5090 Astral OC Review - Astronomical Premium 138

ASUS GeForce RTX 5090 Astral OC Review - Astronomical Premium

Test Setup »

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, videos or forum posts.

Graphics Card Teardown PCB Front
Graphics Card Teardown PCB Back

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

Circuit Board (PCB) Analysis

GPU Voltage, VRM Configuration
GPU Chip Voltage Controller

A massive 24-phase VRM powers the GPU, highlighted in the red rectangles above. These are controlled by a Monolithic Power Systems MP29816 controller


All GPU power phases use Monolithic MPS MP86670 DrMOS with an 80 A rating.

Memory Voltage, VRM Configuration
Memory Chip Voltage Controller

Powering the 16 GDDR7 memory chips is a seven-phase VRM driven by a Monolithic MP2898 controller.


Just like GPU, the memory is handled by Monolithic MP86670 DrMOS chips, too, rated for 80 A.

Graphics Card Memory Chips

The GDDR7 memory chips are made by Samsung, and bear the model number K4VAF325ZC-SC28, they are rated for 28 Gbps.

Graphics Chip GPU

The NVIDIA GB202 GPU at the heart of the GeForce RTX 5090 is massive. It is fabricated using a 5 nanometer "NVIDIA 4N" process at TSMC Taiwan (same process as Ada). The die measures 750 mm², and comes with a transistor count of 92.2 billion.
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