I've definitely been down this road before, where you're chasing that elusive "up to" performance that your device's specs promise but never quite deliver. I remember when I was trying to squeeze every last drop of power out of my own laptop, only to hit a similar wall just shy of the advertised max clock speed. It’s like trying to get that last bit of ketchup out of the bottle, it’s technically there, but good luck getting it!
Your situation with the 7840HS maxing out at 4.96GHz sounds all too familiar. Despite the frustration, I’ve learned that these theoretical max speeds are often just that—more theoretical than practical, especially on laptops where heat management and power efficiency are prioritized over peak performance. Lenovo might have implemented a cap to protect the hardware from overheating, which is a bummer but not entirely unexpected.
I tried every trick in the book too, tweaking power settings, disabling unnecessary features, even scouring forums for hidden BIOS hacks. Sometimes, the best we can do is make peace with the fact that our devices are optimizing for longevity and stability, not just raw speed. It’s frustrating, but at least you’re not alone in this battle. Maybe a quick chat with AMD will shed more light, but from my experience, this is pretty standard behavior.
