Gigabyte Radeon RX 6600 Eagle Review 23

Gigabyte Radeon RX 6600 Eagle Review

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

Circuit Board (PCB) Analysis

GPU Voltage, VRM Configuration
GPU Chip Voltage Controller

GPU voltage uses a 6-phase design and is powered by an IR35217 controller.


The GPU VRM uses AOZ5311NQI DrMOS components by Alpha & Omega Semiconductor, rated for 55 A.

Memory Voltage, VRM Configuration
Memory Chip Voltage Controller

Memory voltage uses a two-phase design and is generated by an NCP81022N controller.


For memory, uPI QN3102 and QN3106 MOSFETs are used—these are rated for 47 A.

Graphics Card Memory Chips

The GDDR6 memory chips are made by Hynix. The RX 6600 Series is the first time we encounter Hynix GDDR6 memory in TPU graphics card reviews. The model number is H56CBM24MIR-S2C. They are specified to run at 1750 MHz (14 Gbps GDDR6 effective).

Graphics Chip GPU

Built on the same TSMC N7 (7 nm) node as Navi 10, the Navi 23 silicon is spread across a 237 mm² die area and packs 11.6 billion transistors. The pinkish-red tinge we saw on Navi 10 is gone.
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