Question / Help Need some advice on gpu for dedicated streaming pc

[Rab1dGaming]

I have already built a dedicated 2nd pc for streaming and recording and while getting everything set up I ran into some issues with the integrated graphics being too weak and causing lag, confirmed by installing a radeon 4550 to test with(still getting rendering lag but far less than with the integrated). The specs are currently as follows.

Amd fx 8320e
ga-78lmt-usb3
8gb ddr3
500w evga psu
Elgato capture card
OS is on an ssd

I have a gt 620 lying around that I could put in if I purchase a pci-e 1x riser cable(found plenty on amazon) since the pci ports are too close on my micro atx board for a dual slot/thicker heatsinks. I am also looking at a gt 710 card that wouldnt require that riser. If the 620 or the 710 arent going to be enough my next option is a gt 730.

Anyone have any insight on the 3 mentioned options or any other suggestions?

 

[Fenrir]

Since the GPU is going to be used primarily for compositing in that setup, the 620 should honestly do the job just fine. I run OBS on an ancient Linux PC with a GTX 260 in it, and it does the job just fine there.

 

[Rab1dGaming]

Sweet, The integrated graphics on my mobo suck ass, and the 4550 is barely any better but it took the load away from the cpu. Initially I was having issues with encoding and rendering lag, but the encoding lag disappeared when I added a dedicated gpu and just left me with some rendering lag. I will just buy the riser cable to start and try out the 620 since I already own it.