Review: AMD Radeon RX 7900 XT and RX 7900 XTX



As I have implied during this article, I am eager to start overclocking and see how far our AMD cards are able to go. The performance is already very interesting in benchmarks and in games, but you’re getting to know us, we can’t get enough of it. On top of that, the card has a cooling system that seems to do the job, so that’s a great thing.

Step 1: Benchmark scores

Of course, it is important to know the scores we obtained on the Time Spy benchmark as well as the maximum boost frequency reached. This will allow us to have the reference scores and thus be able to judge the gains in overclocking.

As we can see, the graphic score is 29864 points, this is what we will try to improve by increasing the frequency of the GPU and memory.

Step 2: OC via RADEON drivers

For the overclocking of these two Radeon RX 7900 XT(X), we will use the RADEON drivers to make the modifications. It is thus by using the AMD drivers, via the interface drivers – performance – setting – manual setting, that we will begin the overclocking. As a reminder, we are going to act on the GPU frequency, on the memory frequency, on the memory latency and on the power limit, here on this model of 15%.

It is from here that we will be able to apply all our modifications.

We take the same and start again..

Yes, as I expected, our performance was again limited by the power limit of the card. To make it simple, from a certain frequency, and even if it is stable, the performances are less good. Look on this picture, the Boost frequency reaches 2859 MHz and yet my graphic score is only 27661 points while at the origin, without overclocking, it is 29864 points!

We will have to wait for less restricted BIOS or use More Power Tool when it will be compatible with this new generation. In the meantime, here is the best score we could get by choosing a frequency between 2650 and 2750 MHz with the memory at 2600 MHz.

The graphic score goes from 29864 points to 30937 points. In games, this allows us a gain of only 3 to 4%. It’s a pity to limit the card in this way, but it leaves a possibility for AMD to offer a RX 7950 XTX for example.