GPUs Graphics Reviews

MSI Radeon RX 5700 XT Evoke OC Edition tested – butter or margarine on bread?

Board layout and components

MSI uses a 7+2 phase design for the Evoke, whereby you can clearly see in the component selection that they buy together for motherboards and graphics cards. The used PWM controllers can be found on motherboards and also the used dual MOSFETs with the integrated drivers. They are looking like Smart Power Stages at first sight, but in real this are a bit cheaper integrated solutions (MOSFETS for high and low side plus drivers in one package) with which you can save space on the PCB.

MSI uses a short PCB with very few active components on the back. A second 8-pin connector would be possible, but is not used with this model. One of the VDDC phases for the GPU is fed from the motherboard slot (PEG), the rest via the external PCIe connectors.

The following table once again contains the most important components:

GPU

PWM Controller IR35217
International Rectifier
8 Phases PWM Controller (7 used)
Gate Driver integrated  
VRM 7x NCP302155
ON Semiconductor
Dual-MOSFET + Driver
Chokes Encapsulated Ferrite Choke
150 mH

Memory

Memory

MT61K256M32
Micron
8x 8GB GDDR6 SGRAM-Modules
2 Channels x 256 Meg x 16 I/O, 2 Channels x 512 Meg x 8 I/O
14Gb/s

PWM Controller NCP81022
ON Semiconductor
2-Phase Digital Regulator
VRM 2x NCP302155
ON Semiconductor
Dual-MOSFET + Driver
Spulen Encapsulated Ferrite Choke
330 mH

Sonstige Komponenten

BIOS 25WP080
EEPROM
BIOS
Connectors
Input Filter, 560 mH
MCU
n/a  

More Details

Features
7 + 2 Phase design
8-Pin + 6-Pin PCI-Express Power Supply

 

Cooler

The upper cover carries the two fan modules, each with 14 rotor blades and 8.7 cm diameter (opening 9 cm). The one-piece lamella cooler with the horizontal cooling fins underneath receives the waste heat from the nickel-plated heatsink via a total of four 6 mm heat pipes. One of the nickel-plated heatpipes made of copper composite material is bent over to both sides of the heatsink.

The memory module cools the MSI again via a cooling frame attached to the heatsink directly above the cooler. For the thermal transition, MSI uses thicker thermal pads, which could have been a bit larger, even if the GDDR6 in the package doesn’t take up the whole area. The pressure could have been distributed a bit better, even if it’s anything but critical.

.

The backplate does not absorb any waste heat and is not integrated in the cooling system, but only of a purely optical nature.

Summary
Cooler Type:
Air Cooling
Heatsink: Copper, nickel-plated
Fins: Aluminium, horizontally orientated
narrow fins
Heatpipes 4x 6-mm Heatpipes,
VRM Cooling:
Main cooler, integrated Heatsink
RAM-Kühlung Main Cooler
Lüfter: 2x 8,7-cm fans, 14 blades
Fan-Stop
Backplate Aluminium
No cooling function

 

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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