Why Do Servers Need So Much RAM?

Servers do need RAM in large amounts. There are several reasons behind it and if it is not provided as per the requirement then there can be a downtime degradation of the whole process and the performances will be below expectation.

To handle the overall load which offers better translation of speed and web performances. When the servers will have the full potential in the RAM it is always likely to get the business initiatives much better.

Key Takeaways

  • The server needs large RAM to avoid lagging in buffering data, using dynamic memory, large service transactions, and more.
  • The virtual servers, applications, and high core counts simply require more RAM in the whole process.
  • The operating system, growth projections, and dynamic content need a better server space from every side.

12 Reasons Why Servers Need So Much RAM

Why do Servers Need So Much RAM

The server outrages are being seen when there is a “lack of power” in RAM. There will be instability and slow performance.

When the server lacks RAM it tries to take away the virtual memory or swap memory.

When the physical memory becomes slower and less then it gradually moves on to use the SSD or HDD instead.

This will bottleneck the performances and the applications will ultimately run much slower than usual.

Thus, there are so many reasons why servers need so much RAM.

1. Buffering Data

There are so many reasons why the servers need so much RAM. The operating system buffers the data from the mass storage.

Instead of mass storage, the data request will be filled by the buffer which will be present in the system.

Thus buffering RAM is added to the servers. This is necessary to make the RAM large so that the server can use the data mass storage instead of a buffer.

2. Large Service Transaction

During the service transaction, though not require more RAM when the simple network services are involved but when the servers are involved with the large service transactions then more RAM is required for the whole process as larger data is involved in the work.

Read Also:  Laptop and Chromebook: 14 Differences

3. Virtual Servers

The virtual servers need very few amounts of RAM as at this point only virtual servers are working a lot.

But parallelly it is being seen that the physical server needs a large amount of memory to run the whole aspect properly.

If the physical servers have low RAM then the process will slow down the whole work thus large RAM is desired for the entire process.

4. Applications

There are so many applications that need a large amount of memory.

For example, there are certainly hundreds of gigabytes per CPU core used in extreme amounts of memory for engineering simulations.

The Oracle databases these are using mass storage, transaction logs, and more flash memory aspects which need a large amount of RAM in the whole process.

5. High Core Count Servers

The high core count servers in the age of virtualization need more memory for the CPU power.

The server needs high memory footprints, especially for the physical memory footprints.

For a particular workload, you need to have loads of RAM for virtual drives and CPU power in the server stations especially seen in the Data centers.

6. Growth Projections

The server memory or the need for the RAM depends on the expected project growth which initiates the larger requirement of memory for the servers.

With more RAM there will be no issues in downtime that generally happens when there is a need for memory upgrade in the server downtime.

The company does not need to take the hassle of investing in RAM after a few months.

The growth size expectations should be kept in mind in the case of server RAM based on the database growth, usage, and employee expectations.

The RAM upgrade caters to unnecessary costs which can be solved if the servers are upgraded as the growth projection in a company is obvious so extra pressure will be understandable on servers that require a larger RAM for sustainability.

7. OS Space

For the system files, and the operating system you need to have a server speed.

Depending on the RAM size these aspects will be maintained in a systematic order.

Read Also:  26 Pros and Cons of Laptops

For the OS the RAM needs to be at the GB default, for every 4 and 8 GB you need to have 1 GB of additional space.

That means when you are having 32 GB RAM then 7 GB space is reserved for the OS.

The servers need to have this extra RAM capacity so that they can offer a smooth performance level the right way.

8. Dynamic Content

The RAM size of the server deals with the influences of the dynamic content that is being exercised to load with maximum RAM whereas the static contents are loaded with the help of the minimum capacity.

For the static content, no additional operations are needed but for the dynamic content the expected server load is max and thus it needs more time to load.

Static contents are those which are stored in the final form but dynamic content like games and other applications where the RAM capacity is highly demanding.

The random ads and messengers need more RAM in the server to be fully functionalized.

9. Users Directly Proportional to RAM

When the number of users of a server increases the demand for more RAM is obvious.

There will be a greater chance of load in the RAM when more people tend to use the server at the same time.

When you are ensuring the user request then make sure that you already thought about the RAM size for processing it.

It needs to be greater in size so that all the requests can be initiated or maintained.

For small businesses where the users are less there won’t be any impact but in the large concerns, the RAM size should be large with every 1 to 2 GB for additional users.

But if you split up the requirement into two servers then even the lesser RAM size can work best.

10. Large Databases

The size of the RAM is directly proportional to the size of the databases. The larger the database, the more RAM needs to be large enough.

If you are looking for a perfect size of the RAM then it is better to settle down with the recommended size as per the database.

When the required capacity grows with time the need for more RAM is established.

The space for the OS needs to be reserved and so for the other parts too.

Read Also:  Mainframe Computer vs Cloud: 14 Differences

11. Faster RAM Accelerates Server

A server needs to have a large RAM to work as fast as it can. RAM which is the most volatile part of the entire system holds the temporary information.

That means the size of it determines how much data it will be holding at a time. When the space is less then the data tends to move over to HDD.

That means when you have large RAM space then the data will be accessed or stored more which is the prime work of the servers.

The (Column Access Strobe latency), CAS latency tends to get into the whole system to make the work faster.

12. Considering the Budget

The budget is one big factor as RAM is one expensive factor if it is upgraded so many times.

Thus, it is always recommended to add the RAM with a large space especially when it is added to the servers.

This will help to have a complete budget that is considered good for the whole system.

Questions & Answers:

How Much RAM Does a Server Need?

16 GB to 32 GB of RAM is required for the server. It is always necessary to keep some extra space for the OS and other components.

For servers extra RAM is required. For home-based servers, you can use 8 GB but that needs an upgrade with time.

Which RAM is Used in the Server?

There are three types of server RAM: Buffered RAM, Unbuffered RAM, and ECC RAM. Depending on your need you can pick and choose the RAM. Each of these RAMs has different functionalities.

Can You Mix RAM in a Server?

Yes, you can mix different sizes of RAM to satisfy your needs. You can mix the RAM and get the best one for yourself. Depending on your need the server RAM is being used.


So, the server does need large RAM to work more faster and efficiently.

When the size of the RAM is more it will give you better performance and works smoothly without any bottleneck or downtime issue in the entire work.

This server needs so much RAM that it does not face frequent memory swaps, termination of non-critical processes, unexpected server reboots, and slow loading time for websites and apps.

About Puja Chatterjee

Puja ChatterjeePuja Chatterjee is a technical writer with extensive knowledge about computers. She graduated from BIMS. Her expertise includes technology writing and client relationship management gained through over 12 years of experience. Follow Her at Linkedin.

Was this helpful?

Thanks for your feedback!
Inline Feedbacks
View all comments