Having optical or a high price doesn't deem them to be good. A proper home theater setup or good quality cans will always be better than a computer oriented 5.1 audio setup. So like I said, is it worth it to you? Are you getting a new graphics card soon?
I have GT 240 and GT 630 4gb spare..If i can sli them for the moment then i'll be ok for now as i only play LoL...No i'm not getting any new graphics soon but maybe in few months.I tested them.I had them.They are awesome.But...I'm still wondering if it's worth because he wants my half of RAMS (8gb x2) so...Idk... :S
You can't SLI two cards that aren't matched, and neither of those cards can SLI anyways. Also, a 680 and 8GB of RAM to me isn't worth it for some speakers.