I have been looking at building 4 standalone bare bones PCs to run their own clients.

To keep costs down I am looking at an i3 core, 4gb ram and a 2gb GPU to meet the minimum requirements.

But there is a step drop-off in $$ from 2GB to 1GB GPUs. Do you think a 1GB GPU is enough if the machine is only running WoW on minimum settings and nothing else?