AMD Radeon RX 7900 Series USB-C Power Delivery: What You Need to Know
The reference-design AMD Radeon RX 7900 XTX and RX 7900 XT graphics cards are equipped with a USB Type-C port that supports DisplayPort 2.1 passthrough and USB Power Delivery (PD) up to the PD 3.0 standard, offering up to 30W of power. While this port does not transmit USB data, it is specifically wired for DisplayPort video output and power delivery, making it ideal for monitors that utilize a single USB-C connection for both display input and power.
Driver Update and USB Power Delivery Concerns
Recently, users noticed that the AMD Software Adrenalin 25.10.2 WHQL drivers appeared to disable USB Power Delivery on the USB-C port of reference RX 7900 XTX and RX 7900 XT graphics cards. Although the port continued to provide DisplayPort passthrough, the loss of power delivery meant that monitors relying on USB-C for both video and power would require an external power source or a separate USB power delivery adapter.
According to the initial driver changelog, USB-C power charging was disabled for Radeon RX 7900 series graphics products. AMD recommended that users who needed this feature revert to an earlier driver version, specifically Adrenalin Edition 25.3.1, to restore USB Power Delivery functionality.
Clarification from AMD
However, AMD has since clarified that the changelog entry was a mistake. After further testing, it was confirmed that USB-C Power Delivery continues to function as expected on the RX 7900 XTX, even with the latest drivers installed. Users can continue to utilize the USB-C port for both DisplayPort video output and power delivery without issue.
Summary
For those using the AMD Radeon RX 7900 XTX or RX 7900 XT reference graphics cards, the USB Type-C port remains fully functional for DisplayPort 2.1 passthrough and up to 30W USB Power Delivery. Despite initial confusion caused by a driver changelog error, AMD has confirmed that there is no loss of USB-C power delivery support in the latest drivers. This ensures continued compatibility with monitors that rely on a single USB-C connection for both display and power needs.
