Video Card u/g suggestions

I would like to speed up my system, I have a decent SSD, I'm wondering if a better video card would make a noticeable difference. This is what I have right now:
Display NVIDIA GeForce GT 630 [Display adapter]
Win10 Pro x64 Version 2009 (build 19045.3930)
m/b ASUSTeK Computer INC. CM6330_CM6630_CM6730_CM6830_M11AA-8
3.40 gigahertz Intel Core i7-3770, Multi-core (4 total), Hyper-threaded (8 total)
Bus Clock: 100 megahertz
Samsung SSD 870 EVO 500GB [Hard drive] (500.11 GB) -- drive 0
16336 Megabytes Usable Installed Memory
Do I need a newer computer to get a noticeable speed improvement?

My first question is are you gaming? If not, a new video card might not give you the bang for the buck that you are looking for.

If you aren't gaming, then I would suggest a new CPU and motherboard, but it's hard to know what to recommend without knoing your end use and budget.

The simple answer is yes, you need a new PC.

A new Graphics Card would only improve games, possibly some specialist application.