Shared Hosting vs. Virtual Private Servers: A Performance Comparison | Elegant Themes Blog
Most people will tell you a Virtual Private Server (VPS) is a vastly superior option to shared hosting in almost every case. While this tends to be broadly true, it’s difficult to measure how significant the difference in performance can be. Without that information, you can’t determine if using a VPS is cost-effective.
Source: Shared Hosting vs. Virtual Private Servers: A Performance Comparison