External video card for laptop

just google your own title :D
btw, won't be cheap

https://www.google.com/search?q=external+graphics+card+laptop

in other words, it would be cheaper to buy a new laptop

Razer core? XD

Honestly: forget the entire idea for now.
External videocards on a laptop right now is definitely not a good idea.
The industry has not properly embraced the idea yet leading to only a few options which are overpriced and often barely-compatible.

Maybe in a couple of years, maybe not.

For now: new laptop or get a desktop where you can actually change the graphics card quite easily.

Just get a desktop or a "Gaming Laptop"

Honestly just buy/build a desktop "Gaming Laptops" don't work at all they only work when they are plugged in because the battery doesn't give enough power to the actual CPU and GPU which results in unplayable framerates (10-30) in most games that are a little bit heavy.

It is possible. Look at these devices that allow an external video card to work on a laptop:
http://www.banggood.com/Mini-PCI-E-Version-V8_0-EXP-GDC-Beast-Laptop-External-Independent-Video-Card-Dock-p-1011222.html?rmmds=search

http://www.banggood.com/Expresscard-Version-V8_0-EXP-GDC-Beast-Laptop-External-Independent-Video-Card-Dock-p-1009976.html?rmmds=search

People just don't use graphics cards with just 128 MB of VRAM (unless it's some IGP using shared memory). I'd advise against getting an external graphics card adapter because the rest of the laptop is likely to bottleneck it due to factors such as reduced memory bandwith(mini-PCIe is limited to 4 lanes instead of 16), a laptop CPU is usually wattage limited to anywhere between 4~45W (whereas desktop CPUs can use 65~90W), and you're likely going to have difficulties using the laptop's built-in display.

Here is a whole forum for external GPU enthusiast community if you want to do some research on building your own :)
http://forum.notebookreview.com/forums/e-gpu-external-graphics-discussion.1103/

I don't have issues like this I have a desktop yay but I also can't go anywhere and as a result spend most of my life inside :(

Thank you guys so much with your help! i get an ideea, and i think im gonna save money for new pc thanks a lot!
Have a good day
Im gonna close discussion

It may be possible to add a media accelerator (internally) to a laptop so it can play HD video if it's not normally capable of it, but in practical terms that probably about it. And that won't help with gaming of course.