TBH, I don't understand stuff about "gaming" laptops either. When I needed a laptop, I've just taken as an example of the laptop I need requirements for Overwatch, lol. Because I'm a big fan of this game. Not so long ago I've even decided to buy Overwatch boost for my character. I have this laptop I was talking about for something like 7 years since then. And I've upgraded it 2 times. Right now it's mediocre. Not the best, not the worst. But it's good enough for me. 8 GB RAM, SSD and 2.2 GHz processor.
I use gaming PC with two graphic cards for my day trading if you are doing swing trading, gaming laptop is not really necessary
There are certain things that gaming laptops buy you: Quality keyboard, e.g. mechanical keyboard Performance for software that is large e.g. trade station. Network optimization: e.g. Killer networks allows you to set your program as highest priority. Higher quality screen and resolutions since you are looking at it a lot. It really depends upon your style of trading. If you code and run VMs, swing trade using some web based interface, or a native program like TS or Ninja. Lastly reliability is key, some cheap ones die in a couple of years. Full disclosure: I run an MSI GT75, 47 GB RAM, 3 TB storage. I7 7th gen. But I do a lot of other stuff, but surely overkill for non automated trading. I find MSI to have great build quality, Asus, Acer XP Dell are OK, Lenovo, HP (low end), are disposable.
Gaming screens have lower response time but also lower resolution. Business laptops have higher resolution as they're used to read text/numbers and used for writing code. Serious people should run Linux for trading so that every aspect of performance can be tuned. The "killer networking" stuff is just marketing and won't matter at all for discretionary trading. For automated trading, it should be done from cloud anyway. High end Lenovos are not disposable. Not sure where you got that idea from.