The processing power of your computer determines its efficiency when using it. If your computer or system is running slow, it might be time for an upgrade. But how do you determine whether to upgrade your GPU or your CPU first?
You should upgrade your GPU first if you’re an active gamer or video editor or have had the GPU for more than four years. In some cases, it’s best to upgrade the CPU first because it’s more cost-friendly, longer-lasting, and controls every aspect of the system besides graphics.
- Difference between CPU and GPU
- What does an upgraded CPU or GPU improve?
- Should I Upgrade My GPU or CPU first?
- What to consider when upgrading your GPU or CPU
This guide will cover the difference between a CPU and GPU and how your system’s lifespan will determine which processor needs an upgrade first.
Read on to learn about what to consider when upgrading your processors and how to find the best fit.
Difference between CPU and GPU
The main difference between a CPU and a GPU is that a Central Processing Unit manages a range of systems, while a GPU has a specific task.
The CPU is the primary tool necessary for your computer to function, but a GPU only handles one area of the computer’s processing, as you’ll read next.
A GPU cannot function without a CPU. It takes data from the CPU and utilizes it to render images that the user can view on the display.
But that data can’t exist without the CPU. In some ways, a GPU is considered more limited in function. Though it is fast, the operations required are basic and repetitive.
Because the tasks are so repetitive, your GPU doesn’t need all the capabilities of your CPU. It’s better at its specific job, but it cannot handle anything else that a CPU regulates.
That’s why CPUs are referred to as General Purpose Processors, while GPUs are Special Purpose Processors.
What is a CPU?
CPU stands for Central Processing Unit. Also known as a processor, the CPU is the system’s brain that controls the other parts. A computer or system cannot function without a brain like a human body.
The Central Processing Unit coordinates every computer component – input, output, data storage, running the operating system, processing, and more.
Your CPU fits inside a specific dock in the motherboard of the computer. It contains all the circuitry needed for this wide range of functions and looks like a small ceramic square with an interior chip.
Megahertz (MHz) and gigahertz (GHz) are the units used to measure processing speed in a CPU.
The former measures millions of instructions each second, while GHz measures billions per second. There are five parts of a CPU: RAM, registers, buses, ALU, and a Control Unit.
CPUs have been around since the mid-1970s, but technology has progressed since then.
Though they were decades in the making, CPUs weren’t commercially available until Intel produced the first in 1974. Since then, they have become a standard household device.
What is a GPU?
GPU stands for Graphics Processing Unit and manages the graphics operations of a computer. Whereas a CPU handles all directions for computer programs, operating systems, and input and output, the GPU has a particular purpose.
The GPU, or graphics card, mainly handles 2D and 3D calculations for visual rendering. Visual imagery, videos, and pictures require repeated arithmetic to render, which a GPU does quickly and accurately.
While a central processor handles everything, it does so more slowly. A graphics processor handles one specific task but does so with great speed.
Computer systems did not always include graphics processors, and even now, not all computers come with an integrated GPU.
Because the CPU manages all of the software, GPUs aren’t always crucial.
However, nowadays, more systems are coming with graphics cards that can even help the CPU run other operating systems and complete general computations.
As you’ll read later, GPUs aren’t just for video gaming and editing. High-level GPUs have the same imagery and animation use, but they extend further into virtual reality, driverless cars, modeling software, and more.
Refer to my other article does a computer need a graphics card for more information.
What does an upgraded CPU or GPU improve?
An upgraded CPU improves the run speed of the entire system because CPUs manage all of the operating systems and programs on a computer. A new CPU can significantly improve computer performance.
Technology companies are constantly improving the speed and ability of these systems, so you can find updated CPUs that can handle all the processing power you need.
An upgraded GPU improves the graphics of your system. Ideal for gaming, video editing, and other graphics-focused programs, an advanced GPU enhances the user experience.
With a high-quality GPU, you’ll see better video quality and improved run speeds for your favorite games.
Should I Upgrade My GPU or CPU first?
Deciding which element to update first will depend on your use, budget, and timeline. If you use your computer for gaming or video editing, you’ll need to decide between the two. However, a new CPU is your best bet if you don’t use your computer for graphics-heavy processing.
The age of your system also factors into the choice. GPUs and CPUs have very different lifespans, so knowing how long you’ve had the system and how long you plan on using it is essential.
In addition, the cost disparity between these two processors may encourage you to go towards a cheaper option for the time being. Learn more about each consideration next.
Establish what you use your computer for first
The best way to decide between upgrading the CPU or GPU is to consider what applications you use in your system.
Because upgrading either element will affect different tasks in your system, your use is the primary consideration.
If you’re a gamer, you likely already know about GPU versus CPU. Video games rely heavily on both processors, as CPUs keep the games running smoothly, while GPUs give you improved and visually appealing graphics.
The type of game you prefer will give you insight into which processor is most necessary. If you like fast-paced games and don’t need exorbitant graphics, an upgraded CPU might be better for your situation.
The same is true for games with many NPCs that must be created, tracked, and interact with you in your game.
With that, you can increase your computer’s speed and ability and notice slight graphics improvements.
Otherwise, if you prefer immersive games with advanced visual environments and video, it might be better to upgrade your GPU first.
Regardless of your preferred video games, having a working CPU and GPU would be best to enjoy the experience fully.
Later, you’ll learn why a new GPU is ineffective if you have a faulty CPU and vice versa.
Similar to video gaming, an upgraded GPU might be better for your work if you’re an editor. Because the GPU addresses only graphics, photo and video editing relies heavily on the processor.
That said, it’s impossible to edit video without a central processor. So, if yours is entirely nonfunctional or too slow to handle your work, it’s time to upgrade the CPU.
For uses other than video editing, gaming, 3D modeling, and other graphics-heavy work, it’ll depend on the quality of both processors.
In general, unless you need intensive graphics processing, it’s a better idea to go with an upgraded CPU.
As you’ll read later, GPUs tend to be more expensive than last for a shorter time.
Sticking with the simpler option of upgrading the CPU will improve your system’s speed without costing you too much.
Do both the CPU and the GPU need to be updated?
Factor in the age and state of the CPU and GPU to decide whether they need to be updated. If you’re a tech whiz, you might be able to tell which part needs more urgent care. Otherwise, review how long you’ve had each component and the level of quality they initially had.
Remember that a GPU cannot function well with a low-quality CPU and vice versa. Everything in your computer needs to work together as a whole.
If the CPU is outdated and slow, that will affect the speed and quality of the GPU system.
A CPU sends instructions and data to a GPU, meaning that if it’s slow or unusable, the GPU won’t correctly retrieve those directions.
You’ll be able to learn more about what’s causing lag in your system by considering how long you’ve owned it.
How long you’ve had the system
Did your computer come with an integrated GPU, or did you add one later? In general, CPUs last longer than GPUs.
If you treat it well, your graphics card will usually last around 3-4 years before needing an upgrade. On the other hand, CPUs can last up to a decade.
Because of this difference in lifespan, you’ll likely need to replace your GPU much sooner than your central processor.
If you remember when you first bought your system or added a graphics processor, that’ll give you insight into how soon it needs to be upgraded and how many more years you have on your CPU.
What level of processor you bought
Like all technology, higher-end products will last longer than cheaper devices.
When thinking about how long you’ve had your system, it’s also important to note that a more expensive computer will have a longer lifespan.
Consider the model you got, how many years you’ve had it, and whether that specific device is known for being long-lasting.
If you spent money on a more advanced option, odds are you’ll get more use out of it.
In terms of which processor you need to upgrade first, you’ll have more insight if you know the model of your system and can find out what other users have experienced.
I have written an article called how to check if a CPU is working if you need to know how to properly establish if a CPU is faulty.
Decide on your budget
Before you decide on upgrading your GPU or CPU, decide on your budget. Graphics Processing Units are generally more expensive to upgrade.
Though they have a shorter lifespan, the average GPU is more expensive because of a limited supply.
Fewer companies are producing GPUs, creating a shortage in the industry. Because of this limited supply, prices for GPUs have gone way up, making an already expensive piece of technology even more so.
Additionally, because GPUs cost more and last for a shorter time, you might conclude that upgrading your CPU first is a good place to start.
With that, you’ll notice some improvement in your system and still be able to later afford a GPU upgrade sometime in the future.
What to consider when upgrading your GPU or CPU
The main elements to consider with an upgrade are memory, bandwidth, brand, and cost:
- Memory: Your graphics card or central processor needs enough memory for your purposes. For example, if you use an excessive amount of video random access memory (VRAM) for high-performance games, go for an option that’ll cover it – but be ready to pay more.
- Bandwidth: Especially significant for online gaming, bandwidth will determine whether or not your game can receive all of the data it needs when it needs it. Faster bandwidth means faster connection speeds.
- Brand: Specifically for GPUs, there are only a few well-known brands, NVIDIA being the leader. Because these processors are in low supply, finding a brand you trust is important.
- Cost: Most likely, you want to keep costs as low as possible without sacrificing quality. Choose a processor within your budget, and consider that you’ll have to upgrade again.
Upgrading your system can be an exciting, if costly, adventure. However, determining which way to go regarding a CPU or GPU upgrade can be challenging, especially with many different views.
The best way to choose an upgrade that works for you is to consider your intended use – gaming, editing, or standard work programs.
If you are a gamer or graphic editor, upgrading your GPU first might be better for your purposes, especially if your CPU is still functional.
Otherwise, review your computer’s age – including the age of each processor – and your budget.