Tech

The Radeon RX 7900 XT and XTX have a serious problem that cannot be solved via drivers

We’ve been seeing leaks for a couple of days that talk about major issues on the Radeon RX 7900 XT and XTX, and today we have some more light with which we are going to try to clarify all the rumors that have arisen in the last hours. It is important that you keep in mind that there are still many doubts around this topic, and that we will only be able to clarify them when they reach the market and we can test them.

Lets start by the beginning. According to several sources Navi 31, the top-of-the-range GPU based on the RDNA3 architecture that will power the Radeon RX 7900 XT and XTX, has some problems that can be considered as hardware level failures, and therefore cannot be solved by drivers. These failures are related to consumption and the profiles that AMD has integrated and imply that, ultimately, the company has imposed a limiter that is too strict.

The curve that is produced between the increase in frequency and voltage has very marked increases, and this means that in the end 355 watts is not enough for the GPU to work at 100% truly intensive. This information has been corroborated by some of the most important leakers that we know of today, so it has high credibility, and according to what they indicate, it gives rise to a strong irregularity in the working frequency of the GPU under DirectX 12.

Another source speaks of rulings in the plural and even says that these are not limited to Navi 31which suggests that they would extend to the Navi 32 and Navi 33 GPUs. Those two GPUs are the ones that will be used in the Radeon RX 7700 XT, Radeon RX 7700, Radeon RX 7600 XT and Radeon RX 7600 XT graphics cards, which they will position within of the high range, medium-high range and mid-range, respectively.

This source also comments that AMD will solve all problems with “RDNA3+”. It is not clear if it refers to a revision of RDNA3 or its successor, but the important thing is that we will have to wait for a new silicon so that all these failures are resolved. We will see how this affects the real performance of both graphics cards and what state they both end up in as far as stability is concerned.

On a positive note, we have at least been able to see that the Radeon RX 7900 XT and XTX perform very well in 3DMark, as you can see in the graphs that we leave you just below this paragraph, courtesy of VideoCardz. The first would be a little below the GeForce RTX 4080, and the second is capable of surpassing it in Fire Strike. These results make us optimistic, but we must not forget that the performance in synthetic tests does not always faithfully reflect the real performance in games, in fact we were already able to confirm that its performance in ray tracing will be inferior to that offered by the GeForce RTX 40 .

Radeon RX 7900 XT and XTX performance

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