value graphics card to watch 1080p on a6600z m2n68-la mobo

scops

Honorable
Dec 16, 2013
6
0
10,510
12 20 13 i opened the case to photograph the slots.
here's the card slots :
<a href="http://imgur.com/ZbtlDYe"><img src="http://i.imgur.com/ZbtlDYe.jpg" title="Hosted by imgur.com" /></a>
the single pci express card slot doesn't look like x16 to me.
what kind is it? what are the slot sizes i have for graphics cards & which value graphics cards can i fit in here to play 1080p videos.
thanks
here's the usb3 card i currently have in that pcie slot:
<a href="http://imgur.com/PyWvU0b"><img src="http://i.imgur.com/PyWvU0b.jpg" title="Hosted by imgur.com"/></a>

12 16 13 hello, i want to be able to improve my video quality on my HP Pavilion a6600z CTO Desktop PC so i can effectively watch 1080p videos without stuttering. (no gaming)
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01570958&cc=ad&dlc=en&lc=en&jumpid=reg_r1002_usen#N427 shows my mobo as ASUS: M2N68-LA HP: Ivy8-GL6 .
i upgraded the psu to Ultra X-connect 500w ATX Power Supply ULT-31556 to accomodate a better graphics card. i'm a little confused as to which "value" graphics card will fit my mobo. it says i have: but i don't the only long slot seems to be the agp. slots i see: agp-(vid card plugged into it
pcie: (usb3 plugged into it , 2 pci slots with nothing in them.
what are the slot sizes i have ... x16 ? which cards can i shop for to do this job for me?
will the gt 610 fit my mobo & is it my best value ?
thanks