Best CPU for RTX 3090 in 2023

best lga 1155 cpus

Best CPU for RTX 3090 in 2023

Key Points

  • The NVIDIA RTX 3090 is only as good as the CPU it’s paired with, so choosing the right CPU is crucial for maximizing its potential.
  • The AMD Ryzen 9 5950X is the best overall CPU for the RTX 3090, with its 16 cores and 32 threads providing stellar multitasking and gaming performance.
  • The Intel Core i9-12900KF offers the best gaming performance with its hybrid architecture and superior single-threaded speed.
  • The AMD Ryzen 9 5900X provides the best value for multitasking and gaming, offering top-tier performance at a competitive price.

The NVIDIA RTX 3090 has taken the tech world by storm, setting new benchmarks in graphics performance. As a proud or prospective owner of this graphics behemoth, you’re likely eager to maximize its potential. But here’s the thing: the RTX 3090 is only as good as the CPU it’s paired with. Think of it as a high-performance sports car; it needs the right fuel to truly shine.

Powerful Graphics
NVIDIA GeForce RTX 3090 Founders Edition
  • Ampere Architecture
  • 24GB DDR6X
  • 384-bit memory interface
  • GPU clock speed: 3.1GHz
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12/01/2023 12:02 pm GMT

Now, the market is flooded with CPUs, each claiming to be the best fit for the RTX 3090. It can be a tad overwhelming, right? Well, we’ve done the heavy lifting for you. After extensive research and comparisons, we’ve narrowed down the top 6 CPUs that will let your RTX 3090 flourish, ensuring you get the performance you paid for.

1. Best Overall CPU for RTX 3090: AMD Ryzen 9 5950X

Best Overall
AMD Ryzen 9 5950X Unlocked Desktop Processor
  • 16 cores and 32 processing threads
  • 100+ fps performance
  • Cooler is not included
  • Up to 4.9GHz max boost
  • Compatible with any AMD Series 500 motherboards with a BIOS update
  • PCle 4.0 support
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11/30/2023 07:36 pm GMT

The AMD Ryzen 9 5950X is the first processor that springs to mind when talking about maximum processing power. This central processing unit is not your average chip; it is evidence of AMD’s dedication to innovation. The RTX 3090 is a perfect complement to its massive 16 cores and 32 threads, allowing it to handle everything you throw at it.

Now we’ll go a little further; the 5950X has a base speed of 3.4GHz and a boost clock of 4.9GHz. That means you can play games at their highest settings, generate high-definition films, and multitask without worrying about the CPU slowing down. If you’re already using an AMD platform, upgrading will be simple, thanks to the AM4 socket’s backward compatibility.

Finally, the 5950X’s adaptability is noteworthy. It may be a beast in games, but it can also do serious work with ease. Its unrivaled performance is ideal for content makers, broadcasters, and multitaskers, allowing them to make the most of the RTX 3090’s capabilities.

Stellar multitasking with 16 cores and 32 threads.Comes at a premium price point.
High boost clock ensures optimal gaming performance.Might require a more advanced cooling solution.
Compatible with most AM4 socket motherboards.

Check out the AMD Ryzen 9 5950X on Amazon.

2. Best Gaming Performance: Intel Core i9-12900KF

Gamers' Pick
Intel Core i9-12900KF Gaming Desktop Processor
  • Features 16 cores (8 performance and 8 energy-efficient)
  • Hybrid chip architecture
  • Compatible motherboards: Intel's 600 and 700 series
  • Socket type: LGA-1700
  • Cache memory: 30MB L3
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11/30/2023 07:37 pm GMT

Every second matters in video games. Intel’s dedication to improving gaming performance is shown in the Core i9-12900KF’s hybrid design. This central processing unit is not only about speed; it’s also about intelligence. It has both high-performance and energy-efficient processing cores thanks to its hybrid architecture. This combination makes the CPU adapt to provide the best performance, whether you’re in the middle of a taxing gaming session or just casually surfing the web.

However, the i9-12900KF’s single-threaded speed is what actually separates it from the competition. When every millisecond counts, as it does in competitive gaming, this CPU really shines. It eliminates annoying pauses and stutters so that players may focus on the action at hand.

In addition, the “K” in its name indicates that it is unlocked for all the performance fanatics out there. This allows you to increase performance by overclocking the component. The i9-12900KF’s gaming capability is unprecedented when combined with a suitable cooling system and motherboard.

Hybrid architecture for balanced performance.New LGA1700 socket might necessitate a motherboard upgrade.
Superior single-threaded performance that is ideal for gaming.Can run hot, especially when overclocked.
Overclockable for performance enthusiasts.Might be overpriced for some budgets.

Check out the Intel Core i9-12900KF on Amazon.

3. Best Value for Multitasking and Gaming: AMD Ryzen 9 5900X

Great Value
AMD Ryzen 9 5900X
  • 12 cores and 24 processing threads
  • 100 + FPS performance
  • Max temperature: 90°C
  • 4.8GHz Max Boost
  • Unlocked for overclocking
  • 70MB of cache, DDR-3200 support
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11/30/2023 07:40 pm GMT

The AMD Ryzen 9 5900X is often mentioned as the ideal processor for gamers who also want powerful multitasking capabilities. This CPU has 12 cores and 24 threads, so it can manage numerous processes at once with ease. The 5900X guarantees a trouble-free experience while streaming games, operating virtual machines, or editing videos.

The 5900X is not content to only excel at multitasking; it is also a powerful gaming processor. Its base frequency of 3.7GHz and boost to 4.8GHz guarantee that games perform at their very best, delivering the kind of frame rates that most gamers can only imagine. Combine it with an RTX 3090, and you’ll have an unforgettable gaming experience.

The 5900X’s value offer, however, is what sets it apart from the competition. It’s easy to become bankrupt in the realm of high-performance central processing units (CPUs). The 5900X, on the other hand, provides top-tier performance without the correspondingly high cost.

12 cores and 24 threads provide excellent multitasking capabilities.Might be considered overkill for users who only game.
High boost clock ensures optimal gaming performance.Advanced cooling recommended for peak performance.
Competitive price for its performance.No integrated graphics, which is typical for high-end Ryzen CPUs.

Check out the AMD Ryzen 9 5900X on Amazon.

4. Best Intel CPU for Gaming: Intel Core i9-11900K

Intel CPU
Intel Core i9-11900K Desktop Processor
  • Base clock speed: 3.5GHz
  • Max clock speed: up to 5.3GHz
  • 14nm design offers great efficiency for computing
  • Intel Smart Cache: 16MB
  • Supports up to 3 monitors
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11/30/2023 07:41 pm GMT

Intel has always stood out while gaming at a high level, and the Intel Core i9-11900K is more proof of that. This powerful CPU was developed with gamers in mind. Some may claim that 8 cores and 16 threads aren’t quite powerful enough. To be sure, statistics are just part of the picture. When it comes to smooth gaming, the i9-11900K shines because of its unparalleled single-threaded performance.

In addition, PCIe 4.0 is included inside the i9-11900K. When combined with a fast solid-state drive, this implies quicker data transfers and a more fluid gaming experience. High refresh rates? You bet!

But it has its peculiarities in the technological realm. The i9-11900K is prone to overheating, particularly when operating at maximum capacity. You should put money into a good cooling solution if you’re considering buying one. However, if playing games is your number one priority, passing on this CPU would be a mistake.

High gaming performance.Can be hot, thus requiring a robust cooler.
Includes 8 cores and 16 threads for multitasking.Does not include integrated graphics.
Supports PCIe 4.0.

Check out the Intel Core i9-11900K on Amazon.

5. Best Mid-Range Performance: Intel Core i7-12700K

Mid-Range Pick
Intel Core i7-12700K Desktop Processor
  • Features 12 cores (8 performance and 4 energy efficient)
  • Includes Intel's UHD 770 integrated graphics
  • Compatible motherboards: Intel's 600 and 700 series
  • Socket type: LGA-1700
  • Cache: 25MB L3
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11/30/2023 07:46 pm GMT

The Intel Core i7-12700K is a CPU that combines price and performance in today’s market. This chip doesn’t simply hold its own; it absolutely destroys the competition. Its hybrid design means it’s perfect for both marathon multitasking sessions and late-night gaming binges.

The i7-12700K is innovative since it is part of Intel’s Alder Lake family. It has both high-performance (P-cores) and low-power (E-cores) variants. This means you can rely on brute power when you need it and save power when things slow down.

The flexibility is the most fascinating part. This processor can easily manage numerous jobs at once, including video editing, multiplayer gaming, and juggling other responsibilities. The ability to overclock is icing on the cake for enthusiasts.

Hybrid architecture for balanced performance.Might require a new LGA1700 motherboard.
Excellent for both gaming and multitasking.Can run warmer under heavy loads.
Includes overclocking capabilities.Price might be a tad high for some budgets.

Check out the Intel Core i7-12700K on Amazon.

6. Best for Upgrading Existing PCs: Intel Core i7-11700K

Best Upgrade
Intel® Core™ i7-11700K Desktop Processor
  • Compatible motherboards: Intel 500 and some Intel 400 series.
  • Supports PCIe Gen 4.0
  • Base clock 3.6GHz, boost clock 5.0GHz
  • DDR4-3200 memory support
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11/30/2023 07:46 pm GMT

When it comes to giving your existing PC a significant boost without diving deep into a complete overhaul, the Intel Core i7-11700K shines brightly. Compatible with the LGA1200 socket, it’s a godsend for those who aren’t quite ready to change their motherboards but crave more power. This 8-core, 16-thread processor is designed to handle both gaming and multitasking with finesse.

But here’s the real kicker: it supports PCIe 4.0. This means faster data transfer speeds, especially if you pair it with a PCIe 4.0 compatible SSD. It’s like giving your old car a brand-new engine. Sure, the exterior remains familiar, but under the hood? Pure, revved-up performance.

However, no CPU is without its quirks. While the i7-11700K is a powerhouse, it can run a tad hot, especially when pushed to its limits. So, if you’re thinking of overclocking or running CPU-intensive tasks, investing in a robust cooling solution would be wise.

Possesses 8 cores and 16 threads for multitasking.Might require a robust cooler.
Offers solid gaming performance.There are better options available for new builds.
Supports PCIe 4.0
Compatible with LGA1200 motherboards.

Check out the Intel Core i7-11700K on Amazon.

How to Choose the Perfect CPU for the RTX 3090: Step-by-Step

Choosing the right CPU for the RTX 3090? Consider these three key factors:

  • Performance Needs
  • Compatibility
  • Budget

Let’s explore each of these aspects to help you make an informed choice.

Performance Needs

Are you a gamer or a multitasker? Some CPUs excel in gaming, while others are multitasking champs.


Ensure the CPU and motherboard are a match and can handle the RTX 3090’s power without bottlenecks.


While the RTX 3090 is top-tier, you don’t always need the most expensive CPU. Set a budget and find the best within that range.

What to Know Before Buying a CPU for the RTX 3090

Selecting a CPU for the RTX 3090 isn’t just about raw power; it’s about synergy. Just as you wouldn’t pair a luxury sports car with budget tires, your RTX 3090 deserves a CPU that complements its capabilities. But there’s more to consider than just performance. Think about compatibility. Does your motherboard support the latest CPUs, or is an upgrade in order? 

Then there’s cooling. High-end CPUs can generate significant heat, especially when pushing boundaries in gaming or multitasking. Ensure you have a cooling solution that’s up to the task. Overclocking enthusiasts? Make sure your chosen CPU and motherboard can handle those extra demands. And don’t forget about future-proofing. Consider how long you plan to keep this setup. Investing a bit more now might save you a future upgrade.

Using a CPU with the RTX 3090: What It’s Like

When paired correctly, the RTX 3090 and a top-tier CPU create a computing symphony. Games run smoother, rendering times drop, and multitasking feels seamless. It’s like upgrading from economy to first class; once you experience it, there’s no going back. The responsiveness, the speed, and the sheer power at your fingertips — it’s a tech enthusiast’s dream.

Frequently Asked Questions

Do I really need to upgrade my CPU for the RTX 3090?

To get the most out of the RTX 3090, a recent high-performance CPU is recommended.

Can I overclock these CPUs?

Many of the listed CPUs support overclocking. Ensure you have the right motherboard and cooling by researching different parts before purchasing.

Do CPUs need a cooling solution?

High-performance CPUs can get hot, it is a good idea to invest in a good cooling solution with quality parts.

Is a motherboard upgrade necessary?

Some CPUs might require a new motherboard due to socket changes. Be sure to do your research when looking to upgrade.

Are these CPUs only good for gaming?

No, many of these CPUs are excellent for multitasking and other demanding tasks. They are not just created to handle intense gaming, but rather to provide great performance overall.

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