Question / Help Building a new PC to stream Dota 2

[kurogashi]

Hi guys, this is currently my build so far:

http://ca.pcpartpicker.com/p/6RRKLk

9I am debating whether I should upgrade to a GTX 770 instead of the 960. How much of an advantage would that be?

Also this is my current upload speed:

http://www.speedtest.net/my-result/4339612157

Is this build/connection speed enough to stream 1080p 30fps Dota 2? Thanks.