I'm playing with 6x3,2GHz prosessor, 8gb 1600Hz memories and directX11 ready 1gb vid card... I have very little freezes or crashes and about 100% of the time I am waiting others to load up the game.
On the other side; I'm in 1/0,5mb ADSL line... I do lose connection quite often and I dont think thats even near enough to host 2vs2 or beyond.

I'm guessing the game isnt so demanding aslong as you got decent dx11 vid card. But it does seem to use lots of bandwith or it has low ping tolerance.

10k games are cool if you dont have all the units but have some. I myself do better against the 10 stars on 14k games than the 1 stars on 5k games... My army fills the 14k fine but 5k is too little... Theres a key to happines there somewhere.