If you are planning to get VPS then hardware config is probably the most crucial part. Usually, users pay attention to HDD, SSD, and other storage devices, but the major thing is definitely CPU.

The main brands that are available on the market are ARM, AMD, and Intel. So, let’s discuss the main differences between these processors.

General information 

Intel and AMD processors are extremely popular variants that lots of users have known about for lots of years already.

The relatively new option is considered to be an ARM processor. This option is a great choice for various types of mobile electronic devices. The thing that made this processor so suitable for mobile devices is energy effectiveness. With the help of RISC architecture, it became possible to reach the needed level of effectiveness.

Rather quickly, there appeared collaborations with the server manufacturers. Because of the scalability and energy efficiency such collaborations became really important. A fundamental niche was created where ARM CPU was used in the areas that needed higher power efficiency. Cloud computing was one of such areas.

As for now, ARM is trying to improve the performance characteristics of the processors while Intel and AMD are more oriented toward some changes in the energy-efficient mechanisms of functioning.

To choose the needed architecture, users should pay attention to software, workload, power efficiency, and of course correlation between the consumption of energy and performance. Now, let’s discuss some of the major differences between these processors.

ARM vs. AMD/Intel    

Power Efficiency

ARM is gaining popularity because of its power efficiency. That is extremely crucial for the server environments and in particular for the cloud one. Efficiency of power is extremely important if talking about the prices for the cooling mechanisms and consumption of power.

The lower consumption of power can directly influence the scalability within data centers/server farms.

Architecture

The major diversity in these processors is in their architecture. ARM CPUs are based on RISC while Intel/AMD use CISC architecture. RISC architecture uses simple instructions which are usually done in one cycle. The principle of functioning is in the repeated performance of simple operations. Generally, this type of architecture offers lessened complexity, power efficiency, and easier instructions.

When talking about CISC, it can carry out all the instructions at a higher speed. Memory and instructions interact by addressing modes. Processors that are based on this type of architecture lessen the size of the program and in such a way minimize memory cycles. This promotes higher speed and better performance characteristics.

Scalability

Scalability is the strong side of ARM processors. This is mainly possible because of the energy-efficient and modular design. This can be a beneficial criterion for users who have challenging workloads. Servers that are based on ARM improve performance characteristics if talking about virtualization and cloud computing.

Licensing and Customization  

Manufacturers of servers can customize and design ARM chips due to certain requirements. This feature makes ARM processors a perfect choice for optimizing performance. You are generally getting access to more tailored options with higher power efficiency.

Performance

Stereotypically users tend to accept AMD and Intel processors as better-performing options. That is understandable because initially these CPUs were produced for high server workloads and the improved performance was always the major goal.   

However, during the recent period, ARM also made a huge improvement in this sphere. The latest processors are good competitors for Intel and AMD. ARM CPUs are especially functional in scenarios with limitations in power consumption and multi-threaded ones.  

Software Support

Of course, when mentioning software support, Intel and AMD processors win. More options are optimized specifically for such processors, just because they are on the market for a longer time.

But this fact doesn’t mean that ARM will always be the second in this list. ARM CPUs are constantly improving and getting more support than it was before.  

How to choose the right processor?

The choice of the processor is a rather individual type of thing and no one can specify which will work ideal for your unique case. Your search should start with determining your specific demands and important features in the project.

If you are looking for higher performance characteristics and a more traditional approach then the best choice is either AMD or Intel.

For the searchers of higher scalability, and better energy efficiency, a great variant will be ARM. That option is also great for virtualization and cloud computing.  

At the same time, all processors are constantly changing and improving their results so you never know what type of CPU will be better tomorrow.

To be honest, simple projects with not need huge performance optimization and will work perfectly fine on any of the discussed processors. For more advanced projects, you should definitely start a detailed exploration of your requirements and what is offered on the market.

Credit: Photo by Brian Kostiuk on Unsplash

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