
We’re going to stipulate among the finest CPUs to pair together with your brand-new RTX 4080.
Up to date: Nov 15, 2022 2:42 pm
Nvidia has unleashed its RTX 4080 onto the world, the GPU, being the little brother of the RTX 4090, isn’t fairly as highly effective, but it surely nonetheless packs a punch. So what could be the perfect CPU for the RTX 4080?
Now Learn: Where to buy an RTX 4080
Discovering a CPU to pair with the RTX 4080 isn’t notably troublesome, as each the CPU giants, AMD and Intel, solely launched their newest era CPUs in September 2022. And what a line-up we now have to select from.
Finest CPU for RTX 4080: Prime picks
Listed below are our prime picks for the best CPU to pair with the RTX 4080.
01
Finest Intel CPU for the RTX 4080
Intel Core i9-13900K

Intel Core i9-13900K
02
Finest Ryzen CPU for the RTX 4080
AMD Ryzen 9 7900X

AMD Ryzen 9 7900X
03
Wildcard: Ace within the gap
AMD Ryzen 7 5800X3D

AMD Ryzen 7 5800X3D
RTX 4080 specs
First off, let’s soar into the specs of the RTX 4080 to see what precisely makes it a robust GPU.
The fundamental specs of the RTX 4080 are as follows:
- Shading Items: 9728
- Tensor Cores: 304
- RT Cores: 76
- Base Clock: 2205 MHz
- Increase Clock: 2505 MHz
- Reminiscence Measurement: 16GB GDDR6X
- Reminiscence Clock: 1400 MHz
- Course of measurement: 4 nm
- Bodily card measurement: Oh Lawd He Commin’ (L 13.2 inches, W 5.5 inches, H 2.4 inches)
As you’ll be able to see, we’re not fairly reaching 4090 ranges of efficiency, but it surely’s actually the second-fastest GPU on the earth at the moment.
What makes a robust CPU?
Now we have to discover a CPU to pair with our RTX 4080 and work out the perfect CPU for the RTX 4080. However what makes a robust CPU? Many of the components we will probably be discussing listed here are simply the tip of the iceberg and require a way more complete rationalization to achieve a full understanding.
However for our functions, they’ll just do positive.
Core and thread depend
CPU cores and threads are probably the perfect figuring out consider whether or not or not a CPU is taken into account highly effective. After all, energy depends on a number of components akin to era, IPC, clock pace, and so forth. We’ll get to these in a minute.
A CPU with extra cores and threads will probably be higher at multitasking natively, which means that your CPU can deal with a number of issues directly increasingly more effectively the extra cores and threads you have got. This sort of setup is right for streamers and content material creators, however should you’re only a gamer you would possibly wish to take into account leaning into our subsequent issue extra closely, core pace.
Core pace
Core pace is the measurement of how briskly a CPU core can full the CPU instruction cycle. The CPU instruction cycle consists of three principal actions, these are fetch, decode, and execute. As quickly as this cycle is accomplished, that’s one instruction executed. and a CPU has billions of directions to course of each second.
The sooner the CPU can execute directions, the sooner it can course of data. Clock pace is measured in a frequency, which is GHz. That’s (X) quantity of billions of cycles per second. So, if a CPU’s clock pace is 5 GHz, that’s 5,000,000,000 cycles per second. The upper the quantity, the sooner the CPU core.
Variations between AMD and Intel CPUs
AMD and Intel are each totally different, which means you want totally different applied sciences to make them suitable with the remainder of your PC.
In case you weren’t conscious, AMD and Intel belong to totally different sockets, which means you want totally different motherboards to make sure compatibility. The brand new era of Intel CPUs belongs to the identical LGA 1700 socket because the Twelfth era. So that you received’t must improve your motherboard there.
With AMD nonetheless, it’s a unique story. AMD has moved from socket AM4 to socket AM5 or LGA 1718, which means the older motherboards are now not suitable. This is similar with DDR4 reminiscence, AM5 motherboards solely accept DDR5 memory.
This implies the improve to AM5 could possibly be pricey, simply one other factor to contemplate.
RTX 4080 CPU bottleneck
What you don’t wish to do, Is bottleneck your 4080 in any manner. A bottleneck happens when one element in a system just isn’t working to the usual of each different element within the system, this ends in a slowdown.
What this appears like by way of a CPU bottleneck, is the CPU just isn’t highly effective sufficient to maintain feeding the GPU with data, which means the GPU is restricted by the quantity of knowledge it’s being despatched to course of. Primarily, it’s like tying a plastic bag round your head and operating a marathon, you’ll do manner worse than should you didn’t have a bag over your head, agreed?
So what does a 4080 CPU bottleneck appear to be? It appears like a CPU from Intel beneath the Core i5-12600K and beneath a Ryzen 5 5600X from AMD. We’d extremely advocate you follow CPUs over that restrict. We all know there’s not an enormous quantity on the market over that restrict proper now, however something under these outlined CPUs would simply be throwing cash away by way of bottlenecking efficiency.
The most effective CPU for RTX 4080
With these fundamentals out of the best way, what’s the perfect CPU to pair with the RTX 4080? We’ll go so as from most becoming to much less becoming. As we’re conscious of the very fact lots of these new CPUs are fairly expensive.

You’re going to desire a beefy CPU to have the ability to sustain with the demand of proudly owning a 4080. This GPU is extremely hungry and can chew via any load even probably the most fashionable CPU can feed to it.
You’re undoubtedly finest off not scrimping on a CPU, because it’s extremely doubtless you’ll run right into a CPU bottleneck, even when going for a CPU decrease than the flagship on the most recent era.
Intel Core i9-13900K

Intel Core i9-13900K

P-cores 3 GHz / E-cores 2.2 GHz
P-cores 5.8 GHz / E-cores 4.3 GHz
Professionals
- Highly effective single and multi-core efficiency
- Excessive enhance speeds
- improved L2 cache capability
- 32 logical processors
The i9-13900K is a really highly effective CPU able to destroying the competitors, Its 24-core and 32-threads annihilate in each single and multi-core workloads. fixing the 13900K on the prime of multi-threaded efficiency for the primary time in a very long time.
The 13900K has a TDP of 125 W base and 253 W enhance, that’s an enormous leap in TDP during the last era’s Alder Lake CPUs. However it’s additionally a large soar in efficiency.
The Thirteenth-generation Raptor Lake CPUs see improved single-core efficiency of as much as 15% and multi-core efficiency of as much as 41%. The most effective half is you don’t even must improve your motherboard to entry all of this efficiency, however upgrading has its advantages.
The L2 CPU cache is doubled this time, giving the CPU entry to bigger, sooner storage. This enabled the CPU to maintain processing directions rapidly with out creating a backlog that ends in slowdowns. The 13900K is severely quick, with a boots core pace of as much as 5.8 GHz, the quickest core pace in the marketplace on the time of writing.
All of this efficiency does have a draw back, nonetheless, the 13900K runs very hotly beneath immense stress. We don’t count on you’d ever attain the degrees of utilization and stress that we did in our take a look at, however we managed to get the 13900K to throttle as much as 13%. utilizing a 360mm AIO.
This CPU is a beast, that will probably be bested by none. The 13900k will hold the 4080 fed relentlessly with its immense quantity of cores and the speeds at which they function. The RTX 4080 could be fortunate to have the i9-13900K.
Ryzen 9 7900X

AMD Ryzen 9 7900X

Professionals
- Unbelievable efficiency
- Excessive efficiency pew Watt
- Fascinating IHS
- Cooler than different 7000 sequence CPUs on common
Cons
- Just a little expensive
- Laborious to maintain cool
The 7900X is a part of the brand-new Zen 4 structure, AMD has actually introduced the efficiency to a different stage on the brand new AM5 platform. The 7000 sequence is introduced into the current with the AM5 socket offering help for each DDR5 and PCIe Gen 5.
The 8-core, 16-thread Ryzen 7900X is able to large multi-core efficiency in addition to single-core efficiency due to its large 5.6 GHz enhance clock pace. AMD has massively elevated efficiency this time, and it hoping it’s going to be sufficient to stave off Intel.
Cache has been doubled this time round, now 1MB per core versus 512KB, this implies extra instruction buffering and fewer doubtless the CPU will probably be caught in a backlog of directions, inflicting slowdowns.
The 7900X’s TDP is 170 W on the base core pace and 230 W on the enhance pace. This additionally sadly makes the CPU run a lot hotter than anybody desires, similar to the 13900K. It appears CPU cooler know-how simply can’t sustain with the quantity of energy packed into the brand new era of CPUs.
This CPU is a gaming big, in addition to packing sufficient cores and threads to deal with the multithreaded workloads of content material creation and streaming, the right high-end AMD CPU for the RTX 4080.
Ryzen 7 5800X3D

AMD Ryzen 7 5800X3D

Professionals
- Cheap
- Unbelievable efficiency
- 3D V-cache
Cons
- No cooler
- No native overclocking help
When you’re on last-gen AMD, and lots of analysis suggests that you’re, then you definately would possibly wish to take into account the Ryzen 7 5800X3D. Because it annihilated Twelfth-generation flagships in outright gaming efficiency.
The Ryzen 7 5800X3D is a marvel in CPU engineering, the 5800X3D has claimed the highest ‘finest gaming CPU’ from Intel and their core i9 12900K of the final era, however there are a few causes it’s not prime of our listing right this moment.
The 5800X3D is a superb alternative for gaming, donning eight multithreaded CPU cores and a large 96MB of brand-new AMD 3D V-cache, which is an unhead-of quantity of cache for a CPU, not even the next-gen flagships have as a lot as this CPU.
3D V-Cache is the place this CPU differed from actually each CPU on the earth proper now, (earlier than the discharge of Zen 43D) because it’s the one one to utilize it.
The 3D cache just isn’t stacked laterally like a traditional 2D cache however vertically (due to new 3D printing know-how) – therefore the time period 3D cache. This drastically will increase the variety of chiplets you’ll be able to cram into an space of any given measurement. The vertical stacking permits AMD to realize the large 96MB L3 cache with a complete entry pace of 2TB/s in its 5800X3D CPUs.
The 5800X3D has decrease core speeds of three.4GHz base and 4.5GHz max, these speeds are even decrease than its brothers the 5800X, The rationale for that is the 3D V-cache instability at greater clock speeds. That is additionally why overclocking is disabled on this CPU as normal.
This new caching know-how provides the CPU main benefits in some gaming workloads, however not all. And with the decrease core speeds and lack of overclocking help means the 5800X3D is often outperformed by cheaper and worse CPUs in eventualities the place the cache just isn’t utilized, even in gaming.
The 5800X3D remains to be a little bit of a wildcard for pure players on the market. And one which ought to be thought of for the RTX 4080, particularly when you’ve got no cash left after shopping for mentioned 4080. Because the 5800X3D might be had for one heck of a deal nowadays.
For these principal causes, is why the 5800X3D just isn’t greater on our listing. You may learn the complete product review on the Ryzen 7 5800X3D proper right here.
Remaining phrase
Choosing the proper CPU for the 4080 might be tough, as you wish to match its energy in probably the most cost-effective manner doable. We guarantee you that the CPUs on this listing is nothing however the perfect. You received’t miss a beat selecting any one of many CPUs we now have on supply right this moment. Will it’s the 13900K titan? or the 7900X from AMD? The effectivity champion.
Each Intel and AMD supply up some high-performance flagships and ought to be severely thought of for the supporting function in your RTX 4080.
You’d higher ensure you have the right prerequisite {hardware}, as AMD and Intel require totally different motherboards to make the most of.
We hope you loved this Finest CPU for RTX 4080 article.