b3ndix

IMHO there's a huge tendency to overbuy VRAM. All the card manufacturers are good at this upsell. But the reality is that the base or lower VRAM amount will generally be okay for the useful life of the card. By the time it's not enough, the card is too slow anyway, VRAM aside. There are exceptions, the odd game that uses more, and some graphics cards where that's less true, etc. But for some games you can usually set textures and/or AA down, or some other setting. The rest of the time, you get the same performance regardless of the lower VRAM. On 1080p, 3GB should probably be okay for a while. On higher res, you probably want something better than a GTX 1060 anyway.
 
(Now with GTX 1060 the 3GB version is actually different and has a lower hardware config than the 6GB version, so it's obviously not just a difference of VRAM.)
 
And you do realize that new generations of hardware need less VRAM to do the same thing as older ones, right? Nvidia's on the 4th generation of their delta color compression for Pascal (GTX 1000 series). Also, if you're judging VRAM needs based on usage with one card, since there's no reason not to use up VRAM, that doesn't really tell you how much things would be affected given less VRAM. Maybe some of the data stored is very rarely needed and could well be evicted with little performance impact.

What's the 20 series?? The next Nvidia cards are going to be the 11 series

than probably just wait then upgrading from a 1050ti to a 1060 is kinda pointless especially since their overpriced atm

i think their rumors and should be ignored and not thought about until solid information comes out from nvidia

The biggest increase in performance is going to come from upgrading your cpu. Upgrading to an i5 that's compatible with that socket seems like the obvious choice.

somthing like a used I5 4690 would be a great upgrade

I would also upgrade your Motherboard and your power supply.  You can find some pretty good deals in the used market like eBay.  

because that psu prob is bad quality and you should get a better one for avoid get burn your house... Also you didnt mention your budget

500w is plenty, mobo is fine if it has what he wants.
 

Firstly, your cpu should be your first priority.  The mobo and psu are more of a "peace of mind"  upgrade.  There are other mini itx boards out there.  Biostar has a reputation of being unreliable as far as quality control.  I'd go with a more reputable brand like Asus or MSI.  The PSU I just never heard of, so its hard for me to trust a brand i've never heard of.  If youre using it now with no issues, i wouldn't worry too much.  But be prepared for something to wrong.  

Fractal Design Node 304 or the Corsair Obsidian 250D