Both blade and rack-mounted servers offer distinct advantages in data center computing. The most basic differences are in performance, power consumption, form factor, space efficiency and cooling requirements.
Both rack-mounted and blade servers appeal to larger companies, while blades are more popular with small- to medium-sized businesses, according to ZDNet. Each server arrangement is a more advanced system than the tower server, the most basic server arrangement. Tower servers are built like workstation PCs, but use substantially more space.