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Best CPU for RTX 4080 – processors to pair with 4080

BEST CPU for 4080
Amaar Chowdhury Updated on by

We break down what the best CPU for RTX 4080 is, helping you get the most out of Nvidia’s powerful new graphics card.

With a new GPU release such as the RTX 4080, tech-heads are always prepared that their entire gaming rig is likely subject to change. A new GPU might ask for a new PSU, which might in turn require a new case to house it, and while you’re upgrading all of that – you might as well upgrade to a new processor to ensure you can make the most of the RTX 4080’s impressive specs.

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This fall has seen the releases of some impressive CPUs – AMD Ryzen 7000-series and Intel 13th Gen CPUs have both hit our stores recently, so we’re looking forward to finding out how these new CPUs pair up with the RTX 4080.

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Best CPU for RTX 4080

If you’re picking a CPU for your RTX 4080, you’re going to want to pick a processor strong enough to sit beside the monster GPU. Alongside that, if you’re splashing out upwards of $1,200 on a graphics card, you’re going to want to invest an equivalent amount of quality and worth in the processor.

You can pick up the newly released RTX 4080 via BestBuy, and take advantage our stock tracker here:

You likely couldn’t go wrong with either a Ryzen 7000-series or Raptor Lake CPU, as the newest generations of CPU architecture are powerful enough that even the children of the family bare sharp teeth.

Read Now: Best PSU for 4080

Best Intel CPU for RTX 4080

Intel Core i9-13900K

Max Frequency (GHz)Base Frequency (GHz)Processor CoresThreadsIntel Cache Smart Size (MB)Cache (MB)
i9K & i9KF5.8324323632

Released on the 20th October, the Intel i9-13900K has seen a great response upon its release. The specs speak for themselves, boasting a boost speed of 5.8Ghz, which is 600Mhz faster than the 12900K.

The i9-13900K is currently on sale at Amazon – seeing up to $110 off the newly released CPU.

The 13900K is the most powerful CPU in the Intel 13th Gen range, and the only processor near its standard is the Ryzen 9 7950X.

Check out Amazon’s listing of the 13900K here.

Best Ryzen CPU for RTX 4080

Ryzen 9 7950X

  • Cores: 16-core (24 threads)
  • Socket: AM5 Socket
  • Base Clock: 4.5Ghz
  • Boost Clock: 5.7Ghz
  • TDP: 170W

Released at the tail end of September, the Ryzen 9 7950X is one of the best CPUs on the market at the moment, alongside a respectable price. The specs approach the power of the 13900K and the two are particularly comparable.

Currently on sale via Amazon with up to $100 off, the price is looking particularly tasty.

The 7950X is the best Ryzen CPU to pair with your RTX 4080, and together they would offer an insanely high level of gaming performance.

You can check the price of the Ryzen 9 7950X here.

Best budget Ryzen CPU for 4080

AMD Ryzen 7 5700X

The AMD Ryzen 7 5700X is a great CPU with internals powerful enough to sit beside the RTX 4080 with pride.

If you’re looking to pair a budget CPU with your new high-performance GPU, this is certainly a strong contender for you to consider.

With a boost speed of 4.6GHz and a shockingly low TDP of 65W, this chip will lower the overall power consumption of your rig drastically – which is needed next to the power hungry RTX 40-series GPU.

The AM4+ motherboard you’ll put the RTX 4080 in is the only limiting factor, as the PCIe 3.0 lanes will bottleneck the memory bandwidth on the card.

You can check the price of the Ryzen 7 5700X here.

Best budget Intel CPU for 4080

Intel Core i5-12600K

The Intel 12th Gen CPUs work well alongside the RTX 4080 GPUs due to the 600-series motherboards having full PCIe 5.0 support. This means that you won’t be hampered by any memory bandwidth issues that the Ryzen CPUs might contend with.

The 12600K is a great CPU with 3.7Ghz minimum clock speed, and up to 4.8Ghz of max boost speed.

Alongside that, it also supports the latest DDR5 type of memory, so if you’re looking to upgrade that too – you’ll be enjoying the fastest gaming performance.

The 12600K is enjoying a great mid-range price and even lends itself to the budget side of CPU performance.

If you’ve spent a little too much on the RTX 4080, you can always stabilise your spending by being thrifty with the i5-12600K.

You can check the price of the i5-12600K here.

Read Now: Best Case for 4080

Will the RTX 4080 go down in price?

There have been multiple, quite funny in our opinion, reports of scrapers being unable to sell their RTX 4080s on for hugely inflated prices they are used to. Tech giant Newegg has even stopped allowing refunds for the RTX 4080, to combat scrapers trying to return their unsold cards.

This is all becuase of relatively poor sales for the RTX 4080. While its specs and performance are not in any doubt, its the high price that seems to be putting off customers. Because of this, and in order to stay competative with the latest AMD grpahics card, there have been rumours that the card could be getting a price cut. This is, however, unconfirmed but would make a lot of sense. Our fingers are crossed!

Best CPU for RTX 4080 FAQs

Do I need a new CPU for RTX 4080?

If you’re on an older CPU, you’re likely due an upgrade due to the 4080s reliance on PCIe 5.0. Only the latest Ryzen 7000 series and Intel 12th / 13th Gen CPUs support this. However, a 4080 still functions on older motherboards, though you won’t be maximising data transfer speed.

Does a CPU affect a GPUs performance?

A CPU directly affects a GPUs performance as the processor is going to be telling the GPU what to render. You’ll want a CPU that can communicate with the GPU fast enough whilst also maintaining a decent frame rate.