How Does CPU Affect Gaming: Guide to Improve Performance

Mousumi
4 min readNov 27, 2020

CPU is like the primary brain of the computer. A CPU with a limited performance lowers your potential. If you play a game on a computer, your CPU speed will affect your performance. It also depends on the game you are playing. Most of the games are visual, which doesn’t require any processing power. But while playing games that require more processing, the role of the CPU becomes essential. Real-time strategy games that you can play against the computer require much processing. It involves time because a computer has to calculate and decide on the units to beat your score. An Online-based match that is being controlled by real people requires GPU is more needed to maintain the visuals where the CPU remains idle. But CPU limit will hinder GPU to perform. If you want to know how does CPU affects gaming, follow this article.

CPU

CPU (Central Processing Unit) is the main processor of a computer. The principal function is to perform logical operations according to the instructions given. Throughout the years, the designs have changed, but the fundamental process has remained unchanged. Based on the need of the customer, they can choose their CPU.

Problems that may arise because of CPU:

In modern games, the graphics card does most of the work while the CPU feed information to the GPU. If the processor (CPU) is weak, it won’t keep up with the CPU. To get the information GPU will have to wait a long time for the CPU to finish its processing.

While ordering a gaming PC, it looks for the best combination. Spend the most of your budget on the GPU section of CPU. If you have a well-balanced system, you can go a long way with the same CPU.

In CPU architecture, four key factors affect their performance. How do those affect gaming are below:

1. Cores: Each processing unit in a CPU is called a core. The core includes ALU (Arithmetic Logic Unit), Control unit, And register. There may be more than one core. The higher the number of core, the higher power it has to run multiple programs. It will gradually increase your speed. Sometimes the cores need to communicate among themselves, which uses up some rate. But with numerous core, it will not affect your function.

2. Clock Speed: Clock speed measures the CPU running speed. How many instructions can the CPU deal with is calculated in this measure? It is usually on a gigahertz or megahertz basis. If you are using a faster CPU, you can create more heat and uses more energy. The computer sets maximum speeds by default. But computer operator can change the speed higher by overclocking. Having a higher clock speed will make the computer run at a higher rate. As a higher rate tends to execute the instructions too quickly, it may have the chance to be corrupted and make the CPU overheated.

3. Cache: Cache is the memory part of the CPU. It holds the data temporarily for the CPU to reuse. To follow instructions, it doesn’t need to fetch files repeatedly. Cache takes less time, and the CPU doesn’t have to wait long. More cache means more data storage.

The cache is grading in 3 levels:

Level 1: It is the smallest and fastest access part in the CPU. The size is between 8 to 64 KB.

Level 2: This cache is immense than Level 1 and takes much time. It is an extra cache to run the computer faster. Sometimes it is built with Level 1.

Level 3: It is similar to Level 2. The more memory available, the faster a computer can run.

Each CPU has its level of cache. The cache doesn’t take much space. In contrast, RAM uses more area, which is expensive.

4. Processor Type: Based on the device you are using, there are two types of CPU CISC (Complex Instructions Set Computing) and RISC ( Reduced Instructions Set Computing). Laptop and desktop use CISC, whereas smartphones and tablets use RISC. The differences are below:

· Instructions: CISC has higher instructions than RISC. As the instruction cycle is much complex, CISC is more efficient in completing the complex task. But RISC is better at a more straightforward job.

· Speed: To play advanced games, one needs a higher speed that is better on CISC. RISC will be able to complete simple tasks much faster.

· Physical Size: CISC CPU is more massive and needs more silicon pads than RISC.

· Design: CISC CPU design has a memory. Smartphones combine their processing architecture into a system chip. Cooling fan and heat sink space. RISC can’t provide so because of its size.

· Energy Consumption: RISC uses less energy and can go to sleep mode while inactive. On the other hand, CISC uses more electricity to follow large operations.

· Cost: RISC is cheaper to make than CISC.

“How does CPU affect gaming” is a tricky question to be answered. One can’t function without a brain. CPU is also like a brain. If the mind has a higher capacity, it will produce a good result.On the other hand, lower power will bring an unsatisfactory product. So, develop your CPU with a higher defined accessory to play high dimension games.

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