"You are guaranteed to avoid noisy neighbors CPU problem by using AWS dedicated instances" This is incorrect. You simply ensure that the only ec2 instances th

"You are guaranteed to avoid noisy neighbors CPU problem by using AWS dedicated instances" This is incorrect. You simply ensure that the only ec2 instances that can be a noisy neighbor are other instances of yours. Since most users investing in dedicated instances tend to put their instances to work, this sometimes has the net effect of reducing performance.