XFX Radeon RX 590 Fatboy 8 GB 98

XFX Radeon RX 590 Fatboy 8 GB

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 them in your articles 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


The overall VRM solution is pretty premium for a card of this price-segment. At its heart is an International Rectifier IR35217 controller. This is the same chip that controls VRM on the RX Vega 64 reference design. This chip can drive 6+2 phases. On this card, each of the six GPU power phases is directly wired to the controller, with no doublers in between. A single-phase memory circuit (on the left of the picture) is also managed by this controller. XFX also used premium International Rectifier PowIRstage IR3578 6x6 driver MOSFETs. These parts combine up/down FETs, a Schottky diode, and driver IC into a single package. Also on tap is a 1 MHz switching frequency. The top-side has a large exposed metal (switch) contact for better heat dissipation.

Graphics Card Memory Chips

The GDDR5 memory chips are made by Micron and carry the model number D9VVR, which decodes to MT51J256M32HF-80:B. They are specified to run at 2000 MHz (8 Gbps GDDR5 effective).

Graphics Chip GPU

AMD's "Polaris 30" graphics processor looks identical to the "Polaris 20" package. It is produced on a 12 nm process at GlobalFoundries and has a transistor count of 5.7 billion, with a die size of 232 mm², which is the same as the 14 nm "Polaris 10."
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