High-resolution PCB Pictures
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High-res versions are also available (
front,
back).
Circuit Board (PCB) Analysis
GPU voltage uses nine phases and is powered by an International Rectifier IR35217.
Vishay SiC649A DrMOS chips are used for GPU voltage.
Memory voltage uses a two-phase design and is generated by an NCP81022N controller.
For memory, Vishay SiC632A DrMOS chips are used.
The GDDR6 chips are made by Samsung, carry the model number "K4ZAF325BM-HC16," and are rated to run at 16 Gbps.
Built on the same TSMC N7 (7 nm) node as Navi 10, the Navi 22 silicon is spread across a 336 mm² die area and packs 17.2 billion transistors. The pinkish-red tinge we saw on Navi 10 is gone.