Overclocking:
As I have hinted during this article, I can’t wait to start overclocking and see how far this RX 7900 XTX Liquid Devil version can go. The performance is already very interesting in benchmarks and in games, but you start to know us, we can’t get enough of it. In addition, the card benefits from a liquid cooling system that will ensure very cool temperatures and the presence of the ” unleash” BIOS makes us dream of a card without limits.
Step 1: Benchmark scores
Of course, it is important to already know the scores we have obtained on the Time Spy benchmark as well as on the maximum boost frequency reached. This will allow us to have a reference score and thus to judge the gains in overclocking . We get a global score of 28519 points from 31792 points if we isolate only the one obtained by the GPU.
Oops, this benchmark score obtained with this “Liquid Devil” version is already almost identical to the one we obtained by overclocking the PowerColor RX 7900 XTX Red Devil Limited Edition. As a reminder, we obtained a Time Spy score of 28633 points. This suggests good things are to come if the unleash BIOS allows it!
Step 2: we push the power limit to 15%
Within the AMD drivers, we will perform the overclocking of this PowerColor. If you want to know more about the modification of the parameters via the AMD drivers, we advise you to have a look here. We are going to increase the power consumption limit by 15% in order to give ourselves more margin.
We get a global score of 29090 points and 32550 points for the GPU. We will also notice that the Boost max frequency goes from 2800 to 2880 MHz.
Step 3: increase the GPU frequency
As expected, I decided to push the GPU frequency a little bit to see the consequences. Even if the maximum frequency announced by GPU-Z is not reached, the performances are crushed. We can see the GPU score which has just gone from 32550 points to 29868 points. We are exceeding the power limit and the card automatically clamps itself. The only way to continue to improve our score is to decrease the GPU voltage in order to lower the power consumption. Let’s see the impact on the results. 
So we are going to be on a different concept of overclocking since on the one hand we are going to increase the frequency of the GPU and on the other hand decrease the voltage of the GPU in order to stay within the margin of maneuver that we have. So it’s going to be a balance to be found.
Step 4: we push the frequency of the memory
Even if we haven’t found the max frequency of the GPU yet, we have already decided to push the memory so that we won’t be limited by it later on. We will have to be in balance between the GPU frequency, the memory frequency and the voltage.
Here is the best score we could get at the moment. The overall score is 30329 points (+6.3%) and the GPU score is 34386 points (+8.1%). The card still has some under the elbow but we would need a less restricted BIOS to go up again when we know that I lowered the voltage from 1.15 volt to 1.05 volt.
Step 5: 13900KS OC + DDR5 8000 CL34 + Liquid Devil
We had the idea when changing platforms to take some first places on Hwbot with this PowerColor RX 7900 XTX Liquid Devil. We pushed the i9-13900KS to 5.8 GHz on P-cores and 4.7 GHz on E-cores, but we could have gone much higher. The Teamgroup memory kit is at 8000 MT/s CL34 and the Liquid Devil has the same parameters as above.
We were able to easily take the first place in these 5 benchmarks before a switch to LN2 planned as soon as it will be possible.
Please note that our article dedicated to the Intel i9-13900KS processor will also be available soon.
