What internet speed do I need for xbox live? I have dsl internet that is 786kbps downstream and 256kbps upstream will that be fast enough for playing xbox live on games like call of duty modern war far 2 and black ops.? What speed of internet do you have? Do experience lag? Will I have a good connection atleast 75% of the time? Will I have that many lags? Only answer if you are sure.!