Both those laptops I mentioned have hd 8670m gpu if you would care to look more carefully.
And if you think cpu is not major need for gaming then I fell sorry for you because you are looking at the best computer website and people like me don't answer if they did not knew any well. First you need to learn is to respect and stop thinking that you know more. Because there's always someone better than you.
If you think cpu is not a major part in gaming then clearly, you know nothing about gaming, atleast not since last 5 years.
Speaking of cpus, they are as important in gaming as gpus. Currently games are getting more cpu bound than gpu bound.
If you are getting a laptop with i3 then it's not a gaming laptop at all. Laptops with i7 are the real gaming laptops.
The fact is, laptop's i5 cpus are even worse/weaker than a desktop's i3 cpus. Proof :
http
/cpuboss.com/cpus/Intel-Core-i5-3210M-vs-Intel-Core-i3-3220
And laptop's i7 are worse than desktop's i5 cpus.
Tell me one person's name from Tom'shardware who would recommend an i3 for gaming over i5, especially when it's a laptop and it's in budget. Yeah, that's right you won't be able to find anyone.
GT 820m is no better than hd 86xxm or 87xxm gpus.
My laptop with i5 3210m was barely able to play crysis 3 at playable FPS (it's a heavily cpu bound game) and I know that cpu cannot handle battlefield 4 on multiplayer so an i3m is no where near.
There's a reason I have a gaming expert badge near my name.