GPU for 4K video only

[P4Clock]

What would be the cheapest GPU to put in my media center for 4k video
i have been running video of my iGPU but i am getting stutter @ 4k

wanting new or bgrade

system spec
CPU: G3220
Mobo: ASRock H81M-ITX
Ram: 4gb 1600mhz - single stick unbranded stuff
PSU: Golden Green HX 350W
HDD: 2th WD Blue (Video storage)
SSD: vertex 2 60gb just for OS and app's

Edit: is something like this upto it? https://www.overclockers.co.uk/msi-...ddr3-pci-express-graphics-card-gx-316-ms.html

 

[arby1]

1030 if no gaming needed and you want brand new.
1050ti if you want some very light gaming

 

[P4Clock]

no gaming just video

 

[r22snapper]

As above, the 1030 is perfect. I have an HTPC and only bought a 1050 as the 1030 didn't exist at the time.