Grafikkarten Testberichte VGA

Powercolor RX 5700 XT Red Devil under test – force is mass times acceleration | English Review

Powercolor sets with the RX 5700 XT Red Devil a decent mark - both in the performance and the massive cooler as well as in the price. In addition, there is a switchable Silent-BIOS that really lives up to its name. But I don't want to spoil too much, I want to test. So read it yourself.

Board layout and components

Powercolor, like AMD, uses a 7+2 phase design for the Red Devil. If you now count ten MOSFETS for the GPU, you are right in principle, but there are only 7 real phases, of which 3 phases drive 2 voltage regulator circuits in parallel, so that you get 10 voltage regulator circuits (VDDC) at the end. The well-known IR 35217 from International Rectifier controls the 10 NCP 302155 from ON Semiconductor, which are rather inexpensive dual MOSFETs with an integrated gate driver and can therefore also be operated in parallel on this PWM controller.

For the two phases for the memory (MVDD) Powercolor (like others) relies on an NCP 81022, a digital 2-phase voltage regulator, which drives a slightly smaller NCP 302045 (both from ON Semiconductor), which is also a dual MOSFET, combining high and low side, as well as the gate driver in one package. This MOSFET, which looks like a Smart Power Stage, is also used in the voltage regulators for the SoC and VDDCI.


Powercolor uses a short PCB with very few active components on the back. A second 8-pin connector implies a high overclocking potential, which should be more apparent than actual. One of the VDDC phases for the GPU is fed from the motherboard slot (PEG), the rest via the external PCIe connectors.

Die nachfolgende Tabelle enthält noch einmal die wichtigsten Komponenten:


PWM-Controller IR35217
International Rectifier
8-Phasen PWM-Controller (7 genutzt, 3 dazu parallel)
Gate Driver integrated  
VRM 7x NCP302155
ON Semiconductor
Dual-MOSFET + Driver
Coils Encapsulated Ferrite Choke
150 mH


Module MT61K256M32
8x 8GB GDDR6 SGRAM-Modules
2 Channels x 256 Meg x 16 I/O, 2 Channels x 512 Meg x 8 I/O
PWM Controller NCP81022
ON Semiconductor
2-Phasen genutzt
VRM 2x NCP302155
ON Semiconductor
Dual-MOSFET + Driver
Coils Encapsulated Ferrite Choke
330 mH

Other Components

BIOS 2x 25WP080
Input Filter, 560 mH
ARM Processor


Features 7 + 2 Phase design (10 + 2 VR circuits)
8-Pin + 6-Pin PCI-Express Power Supply



The upper cover carries the three fan modules, each with 9 rotor blades and 8.5 cm diameter (opening 9 cm). The two-part fin cooler with vertical fins underneath receives the waste heat from the nickel-plated heat sink via a total of four 6 mm and one 8 mm heat pipes. These nickel-plated heatpipes are made of copper composite material and extend almost completely over the entire underside of the radiator, except for one of the heatpipes.


Powercolor cools the memory modules via a common heat sink with the GPU and thus also directly via the cooler. For the thermal transition, thicker thermal pads are used, which fulfil their purpose quite well.


The backplate does not absorb any waste heat and is not integrated in the cooling system, but only of a purely optical nature. This also includes the backlit Red Devil logo.

Kühlsystem im Überblick
Type of cooler: Air Cooler
Heatsink: Copper, nickel-plated
Kühlfinnen: Aluminium, vertically orientated
narrow fins
Heatpipes 4x 6-mm Heatpipes, 1x 8-mm Heatpipe
VRM-Kühlung: Main cooler, integrated Heatsink
RAM-Kühlung GPU Heatsink
Lüfter: 3x 8,5 cm fans, 9 rotor blades
Backplate Aluminium
No cooling function, LED Logo


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About the author

Igor Wallossek

Chefredakteur und Namensgeber von igor'sLAB als inhaltlichem Nachfolger von Tom's Hardware Deutschland, deren Lizenz im Juni 2019 zurückgegeben wurde, um den qualitativen Ansprüchen der Webinhalte und Herausforderungen der neuen Medien wie z.B. YouTube mit einem eigenen Kanal besser gerecht werden zu können.

Computer-Nerd seit 1983, Audio-Freak seit 1979 und seit über 50 Jahren so ziemlich offen für alles, was einen Stecker oder einen Akku hat.

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