Bro sorry but I do not get it
first of all do you really need a laptop?? Because any laptop in general IS MORE EXPENSIVE than a desktop computer while offering same performance.
Especially if you want to play games and not just play games, also preparing some stuff for youtube you definitelly can't expect good performance for $300
So my best recommendation is not to get a laptop. You never mentioned you needed it and for about $350 you have a customized build that does the job:
http
/pcpartpicker.com/parts/partlist/ ($352.83)
Most of its specs are pretty basic but it's got a GTX 950 so you'll run games pretty fine and you're able to record your gameplays with shadowplay and do some rendering with CUDA cores.
You have 4GB o DDR4 RAM, perfect for any normal multitasking and good for games. Also a pentium dual core processor which is skylake and runs a 3.3 GHz in fact you could not get the maximum performance in some games bu generally speaking sopports any actual game.
Don't waste your money on a laptop, despite they have become cheaper they're still quite more expensive than a desktop due to hardware developers sacrifice performance through making them portable and fresh. Also you can upgrade that $350 PC if you want, yu do not have such posibility in a laptop at least when it comes to CPU and GPU.
If you have to move around for school or work there is nothing good for $300 but you have this for $500
Now if you want a laptop price to performance that covers your needs I recommend this one:
http/www.amazon.com/Gigabyte-P55K-BWCUK-15-6-inch-i7-5700HQ-Computer/dp/B012DT2MTC?ie=UTF8&keywords=laptop%20gtx%20965m&qid=1459213902&ref_=sr_1_5&s=pc&sr=1-5
as you can see it's $900 and performs worse in games than my $350 build
even cheaper you have this for $569:
http/www.amazon.com/Acer-E5-GeForce-Bluetooth-Windows/dp/B0167AFQJ6/ref=sr_1_15?s=pc&ie=UTF8&qid=1459214100&sr=1-15&refinements=p_n_feature_seven_browse-bin%3A3012497011%2Cp_36%3A35000-91000%2Cp_n_condition-type%3A2224371011
and i can't suggest you something else for less price