RX 7900 XTX at 3.39 GHz: +28% performance and 650W power draw


Der8auer, the famous overclocker, needs no introduction. He’s treated us pushing a RX 7900 XTX Liquid Devil (tested here) to the bleeding edge. To do this he took the card and ran it at 3390MHz to see what it did. Well.. you’re going to need a big power supply!

RX 7900 XTX at 3390 MHz – consumes 650W, but gains +28% performance!

RX 7900 XTX 3390 MHz

During his overclocking exercise Der8auer used an Elmor EV2 mod on the card. At stock, the card was already running high, around 2980MHz, but was still power limited.

In short, after a “little” manipulation it was able to reach much higher frequencies. After a first attempt, the card was running at around 3000MHz with a power consumption of 420W. A few adjustments later, he managed to reach a frequency of 3390MHz on the GPU. In testing, on 3DMark Time Spy, the card maintained its frequency around 3250MHz. However, this resulted in a really high power consumption: 650W via the power meter installed on the triple 8-pin PCIe connector of the card.

RX 7900 XTX 3390 MHz

However, this overclocking paid off as the scores increased drastically. We are talking about +28% compared to a reference “MBA” (Made By AMD) card. The card showed 114.55 FPS against 89.78 FPS on Time Spy with a Graphics Score of 17700 pts. For comparison, an RTX 4090 shows 123.49 FPS according to Der8auer.