How much CPU matter for Gaming?

PC  Gaming

CPU and GPU overview

What is the CPU?

The central processing unit (CPU), also referred to as the “processor,” carries out and controls the computer program’s instructions by performing input/output (I/O) operations, basic arithmetic, and logic. An essential part of any computer, the CPU receives, directs, and processes the computer’s data.
Since it’s usually the most critical component, it’s often characterized as the “brain” or “heart” of the desktop or laptop PC, depending on which body part you’d consider the most important. And when it comes to gaming, it’s a pretty important component of the gaming system.
A CPU “core” is also another word for the CPU’s processor - they’re all synonyms. Historically, processors had only one core that would focus on one single task. Today’s CPUs, however, have between 2 and 28 cores, each of which focuses on a unique task. So a multi-core processor is a single chip that contains two or more CPU cores.
And CPUs with more cores are more efficient than those with fewer. Dual-core (or 2-core) processors are common, but processors with 4 cores, also called quad-core processors (for instance, 8th Generation Intel® Core™ processors) are becoming more popular.

What is the GPU?

The graphics processing unit (GPU), also called graphics card or video card, is a specialized electronic circuit that accelerates the creation and rendering of images, video, and animations. It performs fast math calculations while freeing the CPU to perform other tasks.
There are two kinds of GPUs: One is an integrated (or embedded) GPU that lives directly on and shares memory with the CPU. And the other is a discrete GPU that has its own card and memory.
The GPU is an extremely important component of a gaming system, and in many cases, even more crucial than the CPU when it comes to playing certain types of games.
Simple description: A GPU is a single-chip processor that’s used chiefly to manage and enhance video and graphics performance.

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What’s the “core” difference between CPU and GPU

While a CPU uses several cores that are focused on sequential processing, a GPU is created for multi-tasking; it has hundreds to thousands of smaller cores to handle thousands of threads (or instructions) simultaneously.
Some CPUs use Hyper-Threading technology which enables a single CPU core to act like two separate virtual (or “logical”) cores, or threads. The idea is they can share the workload between them and increase the number of instructions acting on separate data, while running concurrently - thus speeding performance.

What is more important for PC gaming: CPU or GPU?

For many, the GPU is universally lauded as the most important for PC gaming. That’s because the GPU is what actually renders the images, scenes, and animations that you see. Most of today’s fast-paced games are incredibly demanding for the type of rendering power that the GPU provides. At the same time, these games are designed to take advantage of the multiple cores and threads that newer CPUs offer.
Both the CPU and GPU are important in their own right. Demanding games require both a smart CPU and a powerful GPU. But the question of how significant they are for PC gaming depends on what they will be used for primarily, and for which games in particular.
CPUs are given certain tasks during a game that the GPU isn’t that great at performing - such as the artificial intelligence (AI) functionality of non-player characters (NPC). Many tasks, however, are better for the GPU to perform.
Some games run better with more cores because they actually use them. Others may not because they are programmed to only use one core and the game runs better with a faster CPU. Otherwise, it will not have enough power to run and will be laggy.
Minecraft, for instance, only runs with one core so it doesn’t need extra power. In this case, the CPU’s speed is the only thing that will influence frames per second (FPS) during the game.

Which game types require more labor from the CPU?

Today’s quick-moving games including first-person shooters (FPS), multiplayer games, open sandbox games, and more are built to reap advantages provided by the latest CPUs and their multi-cores and threads. In fact, they require them to play well.
For instance, the first-person shooter multiplayer game Call of Duty: Black Ops 4 recommends at least a quad-core processor: either the Intel i5-2500K, which has 4 cores and 4 threads, or AMD Ryzen R5 1600X, which has 6 cores and 12 threads.
But for competitive players using high refresh-rate monitors (1080p), the game actually recommends an AMD Ryzen 1800X (an 8-core processor with 16 threads) or an Intel i7-8700K (which has 6 cores and 12 threads). The 8th Generation Intel i7-8700K happens to be one of fastest processors with some of the highest clock speeds (boost speed at 4.7 GHz) that Intel offers for gaming and streaming.
Similarly, the acclaimed massively multiplayer online role-playing game (MMORPG) World of Warcraft recommends quad-core processors as well: Intel i7-4770 (4 cores, 8 threads) or AMD FX-8310 (8 cores, 8 threads) or better.
The hugely popular online open-world game of Grand Theft Auto V recommends an Intel i5 3470 (4 cores, 4 threads) or AMD FX-8350 (8 cores, 8 threads). And the epic battle royale game of Fortnite Battle Royale recommends at least an Intel i5 2.8 GHz processor with 4 cores and 4 threads.

Which game types require more labor from the GPU?

Most of today’s games ask a lot from the GPU, maybe even more than the CPU. Processing 2D and 3D graphics, rendering polygons, mapping textures, and more require powerful, fast GPUs. The faster your graphics/video card (GPU) can process information, the more frames you will get every second.
The recommended graphics for Call of Duty: Black Ops 4, for example, is an NVIDIA GeForce GTX 970 4GB, GTX 1060 6GB, or Radeon R9 390/AMD RX 580. These are all considered mid-range cards that are good for 1080p gaming, and running games at medium or even high settings at higher resolutions. The designation of 1080p refers to the resolution (Full HD) of 1920 x 1080 pixels.
For more competitive players, Call of Duty: Black Ops 4 recommends GeForce GTX 1080 or Radeon RX Vega 64 graphics cards. These are considered high-end cards that are good for gaming at resolutions of 1440p Quad HD (QHD) or higher-refresh rate monitors as well as VR headsets.
But you’ll need to make sure that you have a monitor that meets these specs (say, one with 144 Hz refresh rates), otherwise, it wouldn’t make sense to get the higher-end, and more expensive, graphics card. And the inverse is also true: if you have a monitor that only goes up to 60 Hz refresh rates, then it won’t be able to keep pace with a more powerful, pixel-pushing card.
For World of Warcraft, the recommended GPU is an NVIDIA GeForce GTX 960 4GB or an AMD Radeon R9 280 or better. The GTX 960 offers solid 1080p performance with power-efficient consumption, and runs cooler and more quietly than previous models. Although the R9 280 features more video memory than the GTX 960, both GPUs can run demanding games at high settings.
Both the giant sandbox action-adventure game Grand Theft Auto V as well as battle royale wunderkind Fortnite Battle Royale recommend an NVIDIA GeForce GTX 660 2GB, or an AMD Radeon HD 7870 2GB. Both GPUs are decently priced and built for fast 1080p gaming.

Know your gaming requirements

Upgrading your gaming system and, in particular, your CPU or GPU is very much a subjective situation. You may want to do so to play a particular game or a particular type of game. You may be a casual gamer who just wants to play different types of games every so often.
Or you might be a hardcore gamer who is gaming enough to need the kind of processing and performance that will keep pace with your busy gaming schedule.
There is also your budget to consider. If you have a limited amount to work with but have the ability to add to your gaming rig periodically, then making incremental, more cost-effective updates might make sense.
But if you know that you will be playing the latest and greatest AAA titles as soon as they’re released, and you have the available budget, then going with the highest-end CPU and GPU that you can afford may be worth it.