They manage to modify the CPUID to show false entries in Geekbench

Yesterday two new entries appeared on Geekbench with AMD processors not yet announced, specifically the AMD Ryzen 3 7300X and the AMD Ryzen 7 7800X. Both tickets looked real and even had validation from the website. Since chipsandcheese they tell us how have they managed to deceive this website to make believe that those results are apparently from these processors.

The CPUID can be changedeven after booting the computer, modifying the PPR values. In total there are 6 registers of 8 characters each that name the CPUID, you can use up to 48 characters keeping in mind that the last one always has to be null. Using these 47 available characters you can choose the name you prefer to change the CPUID. To make this change you have to retrieve the first 16 characters of EAX, EBX, ECX and EDX at 0x80000002, you will also need to do this for EAX at 0x80000003 and 0x80000004 to a total of 47 characters and the last null.

When using some testing software like CPU-Z will retrieve the already modified CPUID information and display it for the results you run. In this way, you can associate a name of a new processor to some consistent results and it will be a very credible entry, it even appears validated by Geekbench.

But CPU-Z is not the only software that does this, they also retrieve the changed CPUID information Cinebench, AIDA64, HWMonitor, Blender Benchmark, etc.

In this way we can see how easy it is to modify some results and make them seem real, so always take this information with a grain of salt in all the leaks that appear, even when they seem real as was the case yesterday.

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