Radeon RX 590 Review: AMD’s First 12nm GPU Hits 225W

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Temperatures, Clock Rates, and Infrared Measurements

Although the card’s clock rates on an open test bench look good, they break down once we install XFX's Radeon RX 590 Fatboy 8GB OC+ in a closed case. Our charts make it easy to see the connection between frequency and temperature in a real-world gaming sequence and FurMark.

For the power consumption we measured, XFX’s cooler really does seem to be a limiting factor. Something larger (and quieter) would have certainly helped. To be sure, a constant 1580 MHz is only possible in a really well-ventilated case.

Here’s what our results look like in table form:

Swipe to scroll horizontally
Header Cell - Column 0 Initial ValueFinal Value
Open Test Bench
GPU Temperature32°C80°C
GPU Clock Rate1580 MHz1580 MHz
Room Temperature22°C22°C
Closed Case
GPU Temperature33°C82-83°C
GPU Clock Rate1580 MHz1527 MHz
Temperature Inside of Case25°C45°C

The following images include infrared measurements from our gaming and FurMark loops, both on an open test bench and in a closed case. Differences between the two environments are readily apparent, especially since the cooler is operating at its upper limit.

Temperatures During Gaming

Temperatures During FurMark


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Chris Angelini is an Editor Emeritus at Tom's Hardware US. He edits hardware reviews and covers high-profile CPU and GPU launches.