Imagine buying a laptop thinking you are getting a model with your desired CPU specifications, only to find a completely different model inside, cleverly hidden so you wouldn't suspect anything without further investigation. According to an investigation by Notebookcheck, Chinese electronics maker Chuwi is committing specification fraud, with users finding a completely different CPU SKU compared to what was advertised. In a review of the Chuwi CoreBook X and CoreBook Plus, Notebookcheck discovered that Chuwi had listed these laptops with an AMD Ryzen 5 7430U processor, but they actually come with an AMD Ryzen 5 5500U. This means that while Chuwi is actively advertising these models on their website, on the laptop box, and with laptop stickers as featuring the newer "Zen 3" CPU microarchitecture and Radeon "Vega 6" SoC, the company is actually shipping a processor that is a few generations old, with "Zen 2" CPU cores and Radeon Graphics 448SP.

Notebookcheck discovered this during a routine inspection of the unit, which included disassembly, revealing the older Ryzen 5 5500U SoC with its corresponding part number 100-000000375. This prompted further investigation, which noted differences in other SoC specifications, such as the L3 cache, along with lackluster performance. This issue didn't occur just once with the Chuwi CoreBook X, but also with a separate CoreBook Plus, which Notebookcheck also confirmed to feature the older SoC. Instead of the newer AMD Ryzen 5 7430U processor, both of these laptop models actually come with the AMD Ryzen 5 5500U, as verified through diagnostic tools, performance testing, and the OPN number that corresponds to a specific AMD chip.