Is this laptop worth buying over mine?

[devinw1]

I am looking to upgrade my laptop but i dont know how much better it is than my current one.
I have a 4 year old MSI GT683
Amazon.com : MSI GT683DXR-423US 15.6-Inch Gaming Laptop - Black : Notebook Computers : Computers & Accessories

And i'm looking at: http://www.amazon.com/gp/product/B00RXA3Q8I/ref=olp_product_details?ie=UTF8&me=

Also, how well could this new laptop run things like Witcher 3, and it says it has a 15.6inch screen but reviews say the border around the screen is kind of large, is it 15.6inches of actual screen or is that the length of it side to side borders included

 

[Celery]

The new one is much faster and 15.6" is actual view-able screen.