The frequencies reached?
As with every new test concerning processors, our first idea is to check if the announced frequencies are really reached. To do this, we will use the Cinebench R23 benchmark. Two cases will be used: a single core bench and a second one in multi core. The idea is to be able to judge the frequency reached and thus, to compare with what was announced by AMD in its slides.
Remember that the Boost frequency in bench is different depending on the processor. Be careful, as AMD points out, when we talk about maximum Boost frequency, it is the maximum frequency achievable by one of the processor’s cores running a workload in single core(mono-thread). The maximum boost varies according to several factors: the load, the cooling system and therefore the temperature of your processor. This is a notion to keep in mind. Here are the maximum frequencies that we should reach on a single core during our run under Cinebench R23.
First step, we leave everything in AUTO in the BIOS except the EXPO profile which we load in order to have a frequency of 6000 MT/s in 30-38-38-96 for our memory kit. We don’t make any other changes in the BIOS.
Test with the Ryzen 9 7950X3D:
Here we go with our Ryzen 9 7950X3D. As you can see, we opened several windows to check the frequencies as well as the temperatures.
In single core, we can see that core #11 reaches a frequency of 5725 MHz which is slightly higher than the 5.7 GHz announced by AMD. The reason for this is most likely the cool temperatures brought on by our liquid cooling. Note however that with our Ryzen 9 7950X we reached 5825 MHz with the same cooling system.
When the 16 cores of our Ryzen 7950X3D are used, the frequency varies according to the CCD. On CCD 0, the frequency stabilizes at 4875 MHz and on CCD 1 at 5075 MHz. This is again much lower than with our 7950X with one CCD at 5100 MHz and the other at 5325 MHz. On the other hand, while we were at 91°C with the 7950X, we are only at 76°C here.
