I can confirm this. My laptop doesn’t have a proper graphic card and I can’t go all out in my sketches. Especially complex 3D sketches pose a problem. It also gets hot if I run complex sketches for too long, so I need to use a laptop cooler (which works great, but a downside is that it makes a bit of noise).
I’m not familiar with pc hardware so can’t give you reliable advice there, but I would search this forum. Looking for terms such as ‘framerate drop’ and ‘slow framerate’ might help you to make an inventory of what’s causing slow sketches.
Although some of these issues can be solved by making the code more efficient, it gives you an idea of which type of sketches are tough for your computer. This might help in making a well informed decision.
Best of luck!