Buying Guide

The Best CPU for Gaming

From the Ryzen 7 9700X to the Ryzen 9 7950X3D: five processors ranked on L3 cache and boost clock, with who should skip each one.

By , PC Hardware Editor

12 min read5 products evaluated

PC components laid out on a workbench ready for a build
Illustrative image

A gaming CPU should keep up with your graphics card at your target frame rate. These are ordered by boost clock.

We sorted these picks by L3 cache, max boost and cores / threads, working from the makers' own data; nothing here was tested in-house, and if a maker skips L3 cache, the guide says so.

Quick Picks

Which of the 5 picks to look at first. Tap a name for the full analysis.

  1. Highest Boost Clock

    Intel Core i9-14900K

    The highest boost clock here (6GHz).

    Best for: Buyers who put boost clock first.

    Check price for Intel Core i9-14900K on Amazon (opens in a new tab)
  2. Also Consider

    Intel Core Ultra 9 285K

    8 performance and 16 efficient cores.

    Best for: Buyers who want 8 performance and 16 efficient cores.

    Check price for Intel Core Ultra 9 285K on Amazon (opens in a new tab)
  3. Premium Pick

    AMD Ryzen 9 7950X3D

    3D V-Cache aimed at gaming and creator work at the highest price in the group.

    Best for: Buyers for whom price is not the deciding factor, since the Ryzen 7 9700X costs less.

    Check price for AMD Ryzen 9 7950X3D on Amazon (opens in a new tab)
  4. Largest Game Cache

    AMD Ryzen 9 7900X

    The largest L3 cache here (64MB).

    Best for: Players chasing 1% lows in simulation and esports titles.

    Check price for AMD Ryzen 9 7900X on Amazon (opens in a new tab)
  5. Lowest Price Here

    AMD Ryzen 7 9700X

    The lowest price among these processors at the time of writing.

    Best for: Buyers who would rather put the savings elsewhere than into the Ryzen 9 7900X.

    Check price for AMD Ryzen 7 9700X on Amazon (opens in a new tab)

Our Picks

Highest Boost Clock1 of 5

Intel Core i9-14900K

The Core i9-14900K is the last LGA1700 flagship with a 6.0GHz boost clock.

Best for

Buyers who put boost clock first.

Skip if

Skip it if this is a deal-breaker for you: no cooler in the box.
Intel Core i9-14900K

Why we like it

Check your board has the latest BIOS for Intel's stability microcode. It matches the Core Ultra 9 285K on L3 cache (36MB). On boost clock it leads this guide at 6GHz, ahead of the Core Ultra 9 285K (5.7GHz).

On core count it ties with the Core Ultra 9 285K at 24 cores. It is the only pick here with an LGA1700 socket; the Core Ultra 9 285K has an LGA1851 socket instead. No other pick in this guide offers DDR4 or DDR5 memory; compare the Ryzen 9 7900X, which has DDR5 memory.

You also get 8 performance and 16 efficient cores. It fits LGA1700 boards (600 and 700 series) with either DDR4 or DDR5, depending on the board; 600-series boards may need a BIOS update for 14th-gen chips. When we checked, only the Ryzen 9 7900X and cheaper picks cost less, and the Core Ultra 9 285K cost more.

Key specs

L3 cache
36MB
Max boost
6GHz
Cores / threads
24 cores
Rated power
125W
Threads
32
Socket
LGA1700
Memory
DDR4 or DDR5
Cooler in box
No
Integrated graphics
Yes

Pros

  • 6GHz maximum boost
  • 24 cores for encoding and background work
  • Integrated graphics for display output without a graphics card
  • 8 performance and 16 efficient cores

Cons

  • No cooler in the box
  • Costs more than the Ryzen 7 9700X at the time of writing

Also Consider2 of 5

Intel Core Ultra 9 285K

The Core Ultra 9 285K is Intel's flagship on LGA1851, with 24 cores and high single-threaded clocks.

Best for

Buyers who want 8 performance and 16 efficient cores.

Skip if

Look at the others if this bothers you: no cooler in the box.
Intel Core Ultra 9 285K

Why we like it

It suits competitive players who also stream from the same machine. On L3 cache it ties with the Core i9-14900K at 36MB. On boost clock it ties with the Ryzen 9 7950X3D at 5.7GHz.

It matches the Core i9-14900K on rated power (125W). An LGA1851 socket is unique to it among these picks, while the Ryzen 9 7950X3D uses an AM5 socket. It shares DDR5 memory with the Ryzen 9 7950X3D and Ryzen 9 7900X; the Core i9-14900K goes with DDR4 or DDR5 memory.

You also get 8 performance and 16 efficient cores and a built-in NPU for AI features. It needs an LGA1851 board (Intel 800-series chipset) and DDR5 memory; LGA1700 boards and coolers without an LGA1851 mounting kit will not fit. Budget for a dual-tower air cooler or a 240mm-plus AIO, since none is included. On price it sat fourth of 5, between the cheaper Core i9-14900K and the pricier Ryzen 9 7950X3D, at the time of writing.

Key specs

L3 cache
36MB
Max boost
5.7GHz
Cores / threads
24 cores
Rated power
125W
Threads
24
Socket
LGA1851
Memory
DDR5
Cooler in box
No
Integrated graphics
Yes

Pros

  • 5.7GHz maximum boost
  • 24 cores for encoding and background work
  • Integrated graphics for display output without a graphics card
  • 8 performance and 16 efficient cores

Cons

  • No cooler in the box
  • L3 cache trails the Ryzen 9 7900X (64MB)
  • Costs more than the Ryzen 7 9700X at the time of writing

The catch

The trade-off is L3 cache; for more, the Ryzen 9 7900X offers 64MB.

Premium Pick3 of 5

AMD Ryzen 9 7950X3D

What the Ryzen 9 7950X3D brings to the table is 3D V-Cache aimed at gaming and creator work, plus a liquid cooler recommended by AMD.

Best for

Buyers for whom price is not the deciding factor, since the Ryzen 7 9700X costs less.

Skip if

Worth skipping when no cooler in the box is a problem.
AMD Ryzen 9 7950X3D

Why we like it

It also offers a 5.7GHz boost clock and offers a 16 cores core count. It matches the Core Ultra 9 285K on boost clock (5.7GHz). On core count it sits mid-pack at 16 cores: the Core i9-14900K offers 24 cores, and the Ryzen 7 9700X comes in at 8 cores.

Like the Ryzen 9 7900X and Ryzen 7 9700X, it has an AM5 socket, while the Core i9-14900K uses an LGA1700 socket. It needs an AM5 board (A620, B650, B850, X670 or X870 series) and DDR5 memory; check the board's CPU support list for the minimum BIOS version. No cooler is included; a single-tower air cooler is enough at its rating. At our last price check it topped the group, with the Core Ultra 9 285K the nearest cheaper option.

Key specs

Max boost
5.7GHz
Cores / threads
16 cores
Threads
32
Socket
AM5
Memory
DDR5
Cooler in box
No

Pros

  • 5.7GHz maximum boost
  • 16 cores for encoding and background work
  • 3D V-Cache aimed at gaming and creator work
  • Liquid cooler recommended by AMD

Cons

  • No cooler in the box
  • No published L3 cache
  • No published rated power

The catch

If you want a confirmed L3 cache, look to the Ryzen 9 7900X instead: it offers 64MB, while this one gives no figure.

Largest Game Cache4 of 5

AMD Ryzen 9 7900X

The Ryzen 9 7900X has 12 Zen 4 cores on AM5.

Best for

Players chasing 1% lows in simulation and esports titles.

Skip if

Look at the others if this bothers you: 170W rating calls for a large air cooler or a 280mm-plus AIO.
AMD Ryzen 9 7900X

Why we like it

It is a cheaper way to the same thread count as the 9900X, at a higher power rating. On L3 cache it leads this guide at 64MB, ahead of the Core i9-14900K (36MB). Its 5.6GHz boost clock ranks fourth of 5 here, behind the Core i9-14900K (6GHz) and ahead of the Ryzen 7 9700X (5.5GHz).

On core count it sits mid-pack at 12 cores: the Core i9-14900K offers 24 cores, and the Ryzen 7 9700X comes in at 8 cores. On rated power it trails the group at 170W, while the Core i9-14900K offers 125W. Like the Ryzen 9 7950X3D and Ryzen 7 9700X, it has an AM5 socket, while the Core i9-14900K uses an LGA1700 socket.

It also comes with the Zen 4 architecture, a 5nm process and PCIe 5.0 support on AM5. It was priced above the Ryzen 7 9700X and below the Core i9-14900K at the time of writing.

Key specs

L3 cache
64MB
Max boost
5.6GHz
Cores / threads
12 cores
Rated power
170W
Threads
24
Socket
AM5
Memory
DDR5
Cooler in box
No
Integrated graphics
Yes

Pros

  • 64MB of L3 cache
  • 5.6GHz maximum boost
  • 12 cores for encoding and background work
  • Integrated graphics for display output without a graphics card

Cons

  • 170W rating calls for a large air cooler or a 280mm-plus AIO
  • No cooler in the box
  • Rated power trails the Core i9-14900K (125W)

The catch

It gives ground on rated power, where the Core i9-14900K offers 125W.

Lowest Price Here5 of 5

AMD Ryzen 7 9700X

What the Ryzen 7 9700X brings to the table is an AM5 processor with a 3.8GHz base and 5.5GHz boost.

Best for

Buyers who would rather put the savings elsewhere than into the Ryzen 9 7900X.

Skip if

The maker gives no L3 cache, so skip it if that figure decides your choice.
AMD Ryzen 7 9700X

Why we like it

It also offers a 5.5GHz boost clock and offers an 8 cores core count. Its 8 cores core count is the lowest in this group; the Core i9-14900K leads at 24 cores. It shares an AM5 socket with the Ryzen 9 7950X3D and Ryzen 9 7900X; the Core Ultra 9 285K goes with an LGA1851 socket.

It needs an AM5 board (A620, B650, B850, X670 or X870 series) and DDR5 memory; a 600-series board may need a BIOS update first, so check the maker's CPU support list for the minimum version. It was the cheapest of the group when we checked; the Ryzen 9 7900X was the next step up.

Key specs

Max boost
5.5GHz
Cores / threads
8 cores
Threads
16
Socket
AM5

Pros

  • 5.5GHz maximum boost
  • AM5 processor with a 3.8GHz base and 5.5GHz boost
  • The lowest price among these processors at the time of writing

Cons

  • No published L3 cache
  • Boost clock trails the Core i9-14900K (6GHz)
  • Core count trails the Core i9-14900K (24 cores)

The catch

Buyers who need a confirmed L3 cache should compare it with the Ryzen 9 7900X, which offers 64MB.

How We Chose

Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.

An Intel stock cooler mounted over the CPU socket inside a PC
An Intel stock cooler mounted over the CPU socket inside a PC
The figures behind the order
We lined up five processors on L3 cache, boost clock, core count and rated power, using each maker's published specs. These are research figures, not bench results: 2 of 5 picks leave out L3 cache.
The shared baseline
All 5, from the Core i9-14900K to the Ryzen 7 9700X, state boost clock, core count and threads.
Where the specs have gaps
The Ryzen 9 7950X3D and the Ryzen 7 9700X give no L3 cache; the Ryzen 9 7950X3D and the Ryzen 7 9700X give no rated power.
Price range
At our last check the picks ran from the Ryzen 7 9700X ($250 to $500) to the Ryzen 9 7950X3D ($500 to $1000).

What to Look for in a CPU for Gaming

Key buying criteria so you get the right fit the first time.

  1. How much boost clock you need

    Here boost clock runs from 5.5GHz on the Ryzen 7 9700X to 6GHz on the Core i9-14900K, a 9% spread. Start with the Core i9-14900K if boost clock decides it.

  2. Core count across these picks

    The Core i9-14900K tops core count at 24 cores and the Ryzen 7 9700X sits lowest at 8 cores; 2 picks share the top figure. The Core i9-14900K is the pick for core count.

    A desktop CPU seated in its motherboard socket with the retention frame open
    A desktop CPU seated in its motherboard socket with the retention frame open
  3. L3 cache

    The Ryzen 9 7900X tops L3 cache at 64MB and the Core Ultra 9 285K sits lowest at 36MB. If L3 cache is your first filter, the Ryzen 9 7900X sets the ceiling at 64MB. The Ryzen 9 7950X3D and the Ryzen 7 9700X give no L3 cache figure, so 3 of 5 picks are compared here.

  4. Memory

    The Core i9-14900K lists DDR4 or DDR5; the Core Ultra 9 285K, the Ryzen 9 7950X3D and the Ryzen 9 7900X list DDR5. Sort out memory before price: it splits 4 stated picks into groups of 3 and 1.

  5. Cooler in box

    The Core i9-14900K, the Core Ultra 9 285K, the Ryzen 9 7950X3D and the Ryzen 9 7900X go without. Sort out cooler in box before price: it splits 4 stated picks into groups of 4.

How to Choose a CPU for Gaming

By priority

PriorityConsiderWhy
Buyers who put boost clock firstCore i9-14900KThe highest boost clock here (6GHz)
Buyers who want 8 performance and 16 efficient coresCore Ultra 9 285K8 performance and 16 efficient cores
Buyers for whom price is not the deciding factor, since the Ryzen 7 9700X costs lessRyzen 9 7950X3D3D V-Cache aimed at gaming and creator work at the highest price in the group
Players chasing 1% lows in simulation and esports titlesRyzen 9 7900XThe largest L3 cache here (64MB)
Buyers who would rather put the savings elsewhere than into the Ryzen 9 7900XRyzen 7 9700XThe lowest price among these processors at the time of writing

Scroll sideways to see every column.

Key specs side by side

The Core i9-14900K leads on boost clock at 6GHz, ahead of the Core Ultra 9 285K at 5.7GHz. "Not listed" marks L3 cache where the Ryzen 9 7950X3D and the Ryzen 7 9700X leave the figure out.

ProcessorL3 cacheMax boostCores / threadsRated power
Core i9-14900K36MB6GHz24 cores125W
Core Ultra 9 285K36MB5.7GHz24 cores125W
Ryzen 9 7950X3DNot listed5.7GHz16 coresNot listed
Ryzen 9 7900X64MB5.6GHz12 cores170W
Ryzen 7 9700XNot listed5.5GHz8 coresNot listed

Scroll sideways to see every column.

By price at the time of writing

At our last check the cheapest pick, the Ryzen 7 9700X, sat in the $250 to $500 tier, 2 tiers in all up to the Ryzen 9 7950X3D at $500 to $1000; Amazon prices move, so recheck before buying.

Price tierProcessors
About $250 to $500Ryzen 7 9700X, Ryzen 9 7900X, Core i9-14900K
About $500 to $1000Core Ultra 9 285K, Ryzen 9 7950X3D

Frequently Asked Questions

How does the Core Ultra 9 285K compare with the Core i9-14900K on boost clock?

Between the top two, it is 6GHz on the Core i9-14900K against 5.7GHz on the Core Ultra 9 285K, a 5% difference. The Ryzen 7 9700X is at the other end of this group with 5.5GHz.

Is the Ryzen 9 7900X ahead of the Core i9-14900K on L3 cache?

The Ryzen 9 7900X leads at 64MB, with the Core i9-14900K at 36MB. No L3 cache figure is published for the Ryzen 9 7950X3D and the Ryzen 7 9700X, which leaves 3 of 5 picks ranked here.

Is the Ryzen 9 7950X3D worth paying more than the Ryzen 7 9700X?

What it brings is boost clock (5.7GHz against 5.5GHz) and core count (16 cores against 8 cores). The Ryzen 7 9700X sat in the $250 to $500 tier and the Ryzen 9 7950X3D in the $500 to $1000 tier when we checked, with 3 other picks between them; pay the difference only if boost clock and core count decide your purchase.

What makes the Core i9-14900K the Highest Boost Clock?

It earns the label for the highest boost clock here (6GHz). The Core Ultra 9 285K is next on boost clock at 5.7GHz, so this pick's 6GHz is 5% further out. It suits anyone who puts boost clock first.

Do the Core i9-14900K and the Core Ultra 9 285K differ on socket?

The Core i9-14900K uses LGA1700; the Core Ultra 9 285K uses LGA1851; the Ryzen 9 7950X3D, the Ryzen 9 7900X and the Ryzen 7 9700X use AM5.

Beyond the specs, what sets the Core i9-14900K and the Core Ultra 9 285K apart?

The Core i9-14900K: 8 performance and 16 efficient cores. The Core Ultra 9 285K: 8 performance and 16 efficient cores. The Ryzen 9 7950X3D: 3D V-Cache aimed at gaming and creator work.

Bottom Line

Our first pick is the Core i9-14900K, chosen for the highest boost clock here (6GHz). Look at the Core Ultra 9 285K for 8 performance and 16 efficient cores, the Ryzen 9 7950X3D for 3D V-Cache aimed at gaming and creator work at the highest price in the group and the Ryzen 7 9700X for the lowest price among these processors at the time of writing if those matter more to you.

At 4K the graphics card limits frame rates more than the CPU.

About the author

PC Hardware Editor

Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.

Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility

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