Difference between Rack servers and Blade Servers


The key difference between a rack server and a blade server is that a rack server is a standalone server installed in the case, but a blade server must function together in a single server chassis.

What is the use of Rack Server & Blade Server?

Servers are typically considered to be the most effective network management when it comes to cabling large network connections. Coming to Servers, there are three types of servers classified based on their structure. Rack servers, tower servers, and blade servers are examples of these types of servers. We will talk about blade server vs rack server and the distinct features that differentiate them from the two.

What is Rack Server?

Rack servers are designed to be installed in a server rack. Rack Servers are servers made with efficient configurations to support various requirements.

They are also known for their shape and structure as, unlike traditional servers shaped in a PC structure, it is much wider and flatters, which could be fit into any server rack. Rack servers are a good choice if you only need a few servers because they have low upfront costs and are very cost-effective.

What are the features of Rack Server?

  • The rack server functions as the lone rider of all the required components as a single powerful machine. Rack servers have the potential to run high-end applications with ease.
  • Rack servers are convenient to fit as they consume less physical space.
  • Rack servers are usually equipped with internal fans, increasing airflows making cooling easier.
  • Rack servers can save money when you need more than one server because they don’t require a large chassis.

What is a Blade Server?

Blade servers can fit numerous servers into a smaller area. These servers usually have a thin structure with just the CPUs, memory, integrated network controllers, and sometimes storage drives.

These servers also manage their chassis according to the components required. Because of their thin structure, blade servers can be conveniently fitted into one single rack and provide high processing power.

These servers can be used when there are higher computing requirements and some type of Enterprise Storage System like NAS or SAN. Blade servers have the architecture to scale a larger processor density.

What are the features of Blade Server?

  • Blade servers can enable their massive chassis to supply power to multiple servers, reducing total power consumption for each blade server.
  • Blade servers promote Hot-swappable features that could provide you redundancy when one blade faces a problem, pulling and replacing it much more easily.
  • Blade servers require only one cable for running to the chassis, reducing the use of individual cables running for each blade chassis server.
  • Blade servers need minimal space and, at the same time, provide high processing power.


Going through the above concepts of Rack servers and Blade servers, it would be not easy to frame out which one is the best as both of these servers have the same set of functionalities and working. It is particularly based on your processing needs and layout of your physical space and considering your machine’s thermal and electrical power requirements and other computing requirements that could let you decide among the two.

Serverstack is one of the leading brands in dealing with Rack servers and provides you with the efficient servers of ASUS, helping you easily manage your huge network connections.

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About the Author: Peter Beaumont

Peter Beaumont is a senior reporter on Daily Mid Time Global Development desk. He has reported extensively from conflict zones including Africa, the Balkans and the Middle East and is the author of The Secret Life of War: Journeys Through Modern Conflict. Email: peter@dailymidtime.com