Best CPU for RTX 3080 2024

Our top RTX 3080 CPU picks

Silent PC Review is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn More

Table of Contents

The RTX 3080 was Nvidia’s previous-gen flagship GPU. While Nvidia’s former flagship RTX graphics card has lost its throne to the RTX 4080, it’s still a competent GPU. Still, if you’re planning on getting a used 3080, you’ll need a decent CPU to go with it. The RTX 3080 needs a competent CPU to prevent any limitations and bottlenecking. But the best CPU will ensure your GPU performs as expected while gaming.

Best Intel CPU: Intel Core i9 13900K

Intel Core i9-13900K





Base speed

P-cores 3 GHz / E-cores 2.2 GHz

Boost speed

P-cores 5.8 GHz / E-cores 4.3 GHz




125 W / 253 W boost.

  • Outstanding value for its high-performance capabilities
  • Perfect for overclocking enthusiasts
  • Supports both DDR4 and DDR5 memory
  • Demands robust cooling solutions
  • Comes with a high TDP

The Intel Core i9-13900K is the best CPU that Intel currently has to offer in the consumer market. Though it comes at a higher price and requires a motherboard upgrade, the sheer performance it delivers makes it a worthy investment. Boasting an astounding 24 cores and 32 threads, a base CPU clock starting around 3.0 GHz that ramps up to a mind-blowing 5.8 GHz boost clock, and a whopping 32 MB of L2 Cache paired with 36 MB of L3 Cache, the i9 13900K packs a punch for those seeking unparalleled processing power when running a 3080.

Best All-Rounder Gaming CPU: AMD Ryzen 7 7800X3D

AMD Ryzen 7 7800X3D

Cores/ threads

8 cores 16 threads


5 GHz

CPU socket


  • Fastest Gaming Processor
  • 3D V-cache technology
  • PCIe 5.0 support
  • Productivity performance is lacking

Expertly crafted for gaming, the 7800X3D stands as a juggernaut, churning out the best single-core performance in gaming-intensive scenarios. Armed with groundbreaking 3D V-Cache technology, this processor delivers reduced latency and exceptional single-core performance across the board. Notably, the 7800X3D remains competitively priced, overshadowing even its bigger siblings in GPU and CPU-intensive gaming.

Best Budget CPU: AMD Ryzen 7 5800X3D

AMD Ryzen 7 5800X3D





Max boost speed


L3 Cache

96MB (64MB 3D V-cache)



  • Low TDP
  • Decent Price Point
  • Great Single Core Performance

The AMD Ryzen 7 5800X3D comes at a decent budget, packing 8 cores and 16 threads into its tiny die. You get a base boost clock of 3.4 GHz that turbos up to 4.5 GHz. And the best part is that you get a combined cache of 96 MB. You can easily play any AAA title with this CPU or gnaw at the most demanding CPU-intensive workflow, all for a decent price point.

In Summary

That pretty much wraps up our top CPU picks for the RTX 3080. The RTX 3080 is still a competent GPU despite being dethroned by the newer RTX 4080. And if you can find it for a solid deal on the secondary market, then you’ve got yourself a beast that gives you a sure bang for your buck, provided you used one of our top CPU picks along with it.

About the Author