Ok so I think I figured out myself what the issue is. Turns out it was missing 2 drivers: the "Intel Innovation Platform Framework Driver" and the "Intel Dynamic Tuning Driver". I have formatted this PC with a fresh install of Windows 11 after I first got it and neglected to install these drivers - all other drivers were properly installed. Once I installed them, the 20W power limit no longer applies when I set the Thermal Management to "Ultra Performance" in the Dell Power Manager utility when I run the CPU-Z stress test. Running Doom Eternal now also no longer gets the CPU power limited. My thinking is that with the absence of these 2 drivers, Windows doesn't know how to properly power limit  this CPU and it always default to "Optimized".
Hi. I'm wondering if anyone could help me understand why my brand new Inspiron 16 Plus 7620 is hitting a power limit of 20W very quickly. I've noticed that the CPU gets throttled very fast by a power limit when running demanding CPU tasks. When I run CPU-Z stress test, for example, at first it has a sudden burst of power and throttles up to over 4GHz at over 100W, however, this only holds for a a few seconds. After about 10 seconds, at most, the CPU gets throttled by a power limit which brings it down to 20W, which severely impacts performance. This power limit throttle stays in place until the heavy load is lifted. I've also noticed that this happens with moderate CPU tasks as well, like running a game or when PHPStorm caches files. Here are the things I tried to remove this power limit- Using the Dell Power Manager application and setting the Thermal Setting to "Ultra Performance"- Setting Windows Power mode to "Best Performance"- Disabling Intel SpeedStep option in the BIOS But none of it seem to work. Also of notice, I have the laptop plugged in to the mains and I am using Dell's original 130W power supply when running the test. So is this normal for this laptop or is there an issue or something misconfigured somewhere? The way this power limit is currently acting severely impacts the performance of the i7 12700H processor and if this is a normal thing for this laptop, I may have to re-consider it. Which would be a shame because I really like the laptop otherwise. Thank you.
Inspiron 16 plus 7620 20W power limit?