The initial scandal centered on the CoreBook X, a laptop marketed as featuring the Ryzen 5 7430U processor. However, a teardown revealed that the device actually contained an older, less powerful Ryzen 5 5500U. Chuwi attempted to downplay the controversy, suggesting the mix-up was due to differing production batches and leftover stock on the market. Yet mounting evidence pointed to deliberate tampering somewhere in the supply chain, in which the processor had been intentionally altered to mimic a newer Ryzen chip.
According to Notebookcheck, Chuwi reportedly demanded the publication remove its article around the scandal, seemingly accompanied by threats of legal action over alleged reputational damage. The incident ignited widespread concern about the authenticity of processors in Chuwi devices. and fueled the news outlet to dig deeper.
You may like Popular budget-friendly Chinese brand exposed for shocking CPU scam in its laptops "Like new" Ryzen 9 9900X3D Amazon order turns into a shocking CPU bait-and-switch scandal ASRock issues statement concerning yet another round of Ryzen 9000 CPU failures The publication purchased a CoreBook Plus, another laptop boldly advertised as leveraging the Ryzen 5 7430U processor, from a reputable German retailer. The findings were consistent with the CoreBook X model. The sticker with the specifications on the packaging blatantly shows the Ryzen 5 7430U. There's a matching Ryzen 7000 series sticker on the laptop, which is false since the Ryzen 5 5500U belongs to the Ryzen 5000 series.
As expected, the processor was showing as the Ryzen 5 7430U inside the CoreBook Plus's BIOS, in Windows, and in system information and monitoring utilities, including CPU-Z. A quick disassembly shows that the processor carries the 100-000000375 OPN number, which we already know corresponds to the Ryzen 5 5500U. The Ryzen 5 7430U's OPN is 100-000000943.
Consumers, who are well-versed in processors, can easily tell the Ryzen 5 5500U and the Ryzen 5 7430U apart. The devil is in the details, but less-informed buyers may not be able to tell them apart due to their similarities. However, remember that the two-year-older Ryzen 5 5500U has lower boost clock speeds (200 MHz lower base and 300 MH lower boost) and half the L3 cache capacity of the Ryzen 5 7430U. Performance-wise, the Ryzen 5 7430U is, on average, about 7% faster than the Ryzen 5 5500U, but as Notebookcheck has highlighted, the performance delta can climb to 20% in certain workloads.
With irrefutable evidence emerging from two distinct Chuwi laptop models, the notion that this is merely a case of mislabeling has become impossible to defend. The level of manipulation doesn't happen by accident, as someone spoofed the processor on a firmware level. While some might argue that both the CoreBook X and CoreBook Plus could be from the same "defective" batch, it's unlikely. Notebookcheck’s photographs confirm that the two devices utilize entirely different motherboards, ruling out any production error.
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Reference reading
- https://www.tomshardware.com/laptops/SPONSORED_LINK_URL
- https://www.tomshardware.com/laptops/cpu-fraud-scandal-erupts-as-another-chinese-laptop-busted-with-a-fake-chip-second-device-sporting-a-disguised-ryzen-5500u-uncovered-after-vendor-threatens-legal-action#main
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