Buying Guide
The Best High-End CPUs for Gaming
Five flagship processors from AMD and Intel, compared on cache, boost clock and the cooling each one needs.
By Alex Morgan, PC Hardware Editor
12 min read5 products evaluated

At the high end, AMD's X3D chips lead for gaming because of their large L3 caches, while Intel's flagships offer more cores and higher boost clocks.
We compared cache, boost, cores and rated power from AMD and Intel specifications; we did not benchmark these processors. Every chip here needs a strong aftermarket cooler.
Quick Picks
Which of the 5 picks to look at first. Tap a name for the full analysis.

Best High-End Gaming Chip
AMD Ryzen 7 9850X3DA 5.6GHz boost with 96MB of L3.
Best for: Pure gaming at high refresh rates.
Check price for AMD Ryzen 7 9850X3D on Amazon (opens in a new tab)
Best Value Flagship
AMD Ryzen 7 9800X3D96MB of L3 on eight Zen 5 cores.
Best for: High-end gaming for less.
Check price for AMD Ryzen 7 9800X3D on Amazon (opens in a new tab)
Largest Game Cache
AMD Ryzen 9 9950X3DThe largest L3 cache here (128MB).
Best for: Games that are limited by the CPU at high frame rates.
Check price for AMD Ryzen 9 9950X3D on Amazon (opens in a new tab)
Best Intel Flagship
Intel Core Ultra 9 285K24 cores with a 5.7GHz boost on LGA1851.
Best for: New Intel high-end builds.
Check price for Intel Core Ultra 9 285K on Amazon (opens in a new tab)
Highest Boost Clock
Intel Core i9-14900KA 6.0GHz listed boost.
Best for: Existing Z690 and Z790 boards.
Check price for Intel Core i9-14900K on Amazon (opens in a new tab)
| Pick | Why it stands out | Best for | Check price |
|---|---|---|---|
![]() | A 5.6GHz boost with 96MB of L3. | Pure gaming at high refresh rates. | Check price for AMD Ryzen 7 9850X3D on Amazon (opens in a new tab) |
![]() | 96MB of L3 on eight Zen 5 cores. | High-end gaming for less. | Check price for AMD Ryzen 7 9800X3D on Amazon (opens in a new tab) |
![]() | The largest L3 cache here (128MB). | Games that are limited by the CPU at high frame rates. | Check price for AMD Ryzen 9 9950X3D on Amazon (opens in a new tab) |
![]() | 24 cores with a 5.7GHz boost on LGA1851. | New Intel high-end builds. | Check price for Intel Core Ultra 9 285K on Amazon (opens in a new tab) |
![]() | A 6.0GHz listed boost. | Existing Z690 and Z790 boards. | Check price for Intel Core i9-14900K on Amazon (opens in a new tab) |
Our Picks
Best High-End Gaming Chip1 of 5
AMD Ryzen 7 9850X3D
The Ryzen 7 9850X3D is a higher-clocked version of the eight-core X3D design.
Best for
- Pure gaming at high refresh rates.
Skip if
- Look at the others if this bothers you: no cooler in the box.
Why we like it
It targets players who want the most gaming headroom AMD offers in an eight-core chip. It is AMD's second-generation X3D eight-core chip with 96MB of L3 cache. On L3 cache it ties with the Ryzen 7 9800X3D at 96MB.
On boost clock it sits mid-pack at 5.6GHz: the Core i9-14900K offers 6GHz, and the Ryzen 7 9800X3D comes in at 5.2GHz. It matches the Ryzen 7 9800X3D on core count (8 cores). It shares an AM5 socket with the Ryzen 7 9800X3D and Ryzen 9 9950X3D; the Core i9-14900K goes with an LGA1700 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. Its price falls between the Core i9-14900K and the Core Ultra 9 285K, based on our last check.
Key specs
- L3 cache
- 96MB
- Max boost
- 5.6GHz
- Cores / threads
- 8 cores
- Rated power
- 120W
- Threads
- 16
- Socket
- AM5
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 96MB of L3 cache from 3D V-Cache
- 5.6GHz maximum boost
- Integrated graphics for display output without a graphics card
- Higher-clocked take on the 9800X3D design
Cons
- No cooler in the box
- Costs more than the Ryzen 7 9800X3D at the time of writing
Best Value Flagship2 of 5
AMD Ryzen 7 9800X3D
The Ryzen 7 9800X3D pairs AMD's 3D V-Cache with eight Zen 5 cores, and games that lean on cache respond to it more than to extra cores.
Best for
- High-end gaming for less.
Skip if
- Pass on it if no cooler in the box rules it out for your setup.
Why we like it
It is the chip to pair with a high-end graphics card when the CPU would otherwise hold frame rates back. Its 5.2GHz boost clock is the lowest in this group; the Core i9-14900K leads at 6GHz. On core count it ties with the Ryzen 7 9850X3D at 8 cores.
Like the Ryzen 7 9850X3D and Ryzen 9 9950X3D, it has an AM5 socket, while the Core Ultra 9 285K uses an LGA1851 socket. You also get second-generation 3D V-Cache placed under the cores and an unlocked multiplier, a first for AMD's X3D chips. 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.
Budget for a dual-tower air cooler or a 240mm-plus AIO, since none is included. No other pick here cost less at our last price check, and the Core i9-14900K was closest.
Key specs
- L3 cache
- 96MB
- Max boost
- 5.2GHz
- Cores / threads
- 8 cores
- Rated power
- 120W
- Threads
- 16
- Socket
- AM5
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 96MB of L3 cache from 3D V-Cache
- Integrated graphics for display output without a graphics card
- Second-generation 3D V-Cache placed under the cores
- Unlocked multiplier, a first for AMD's X3D chips
Cons
- No cooler in the box
- Boost clock trails the Core i9-14900K (6GHz)
- Core count trails the Core Ultra 9 285K (24 cores)
The catch
Boost clock is its weakest area, and the Core i9-14900K covers it better at 6GHz.
Largest Game Cache3 of 5
AMD Ryzen 9 9950X3D
The Ryzen 9 9950X3D adds a second eight-core die to the X3D formula, giving 16 cores for work while keeping 3D V-Cache for games.
Best for
- Games that are limited by the CPU at high frame rates.
Skip if
- Worth skipping when 170W rating calls for a large air cooler or a 280mm-plus AIO is a problem.
Why we like it
It suits a single machine that must game and render. Its 128MB L3 cache is the largest here; the Ryzen 7 9850X3D comes next at 96MB. On boost clock it ties with the Core Ultra 9 285K at 5.7GHz.
Its 16 cores core count ranks third of 5 here, behind the Core Ultra 9 285K (24 cores) and ahead of the Ryzen 7 9800X3D (8 cores). Its 170W rated power is the highest in this group; the Ryzen 7 9850X3D leads at 120W. It shares an AM5 socket with the Ryzen 7 9850X3D and Ryzen 7 9800X3D; the Core i9-14900K goes with an LGA1700 socket.
It also offers a design aimed at both games and content creation. It was the highest-priced of the 5 picks at the time of writing, so the case for it rests on what it adds over the Core Ultra 9 285K and the rest.
Key specs
- L3 cache
- 128MB
- Max boost
- 5.7GHz
- Cores / threads
- 16 cores
- Rated power
- 170W
- Threads
- 32
- Socket
- AM5
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 128MB of L3 cache from 3D V-Cache
- 5.7GHz maximum boost
- 16 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 Ryzen 7 9850X3D (120W)
The catch
The trade-off is rated power; for more, the Ryzen 7 9850X3D offers 120W.
Best Intel Flagship4 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
- New Intel high-end builds.
Skip if
- Skip it if this is a deal-breaker for you: no cooler in the box.
Why we like it
It suits competitive players who also stream from the same machine. It matches the Core i9-14900K on L3 cache (36MB). It matches the Ryzen 9 9950X3D on boost clock (5.7GHz).
On rated power it ties with the Core i9-14900K at 125W. It is the only pick here with an LGA1851 socket; the Ryzen 7 9850X3D has an AM5 socket instead. It also comes with 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. When we checked, only the Ryzen 7 9850X3D and cheaper picks cost less, and the Ryzen 9 9950X3D cost more.
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
- Costs more than the Ryzen 7 9800X3D at the time of writing
Highest Boost Clock5 of 5
Intel Core i9-14900K
The Core i9-14900K is the last LGA1700 flagship with a 6.0GHz boost clock.
Best for
- Existing Z690 and Z790 boards.
Skip if
- Pass on it if no cooler in the box rules it out for your setup.
Why we like it
Check your board has the latest BIOS for Intel's stability microcode. On L3 cache it ties with the Core Ultra 9 285K at 36MB. Its 6GHz boost clock is the highest here; the Ryzen 9 9950X3D comes next at 5.7GHz.
It matches the Core Ultra 9 285K on core count (24 cores). An LGA1700 socket is unique to it among these picks, while the Ryzen 7 9800X3D uses an AM5 socket. You get DDR4 or DDR5 memory here, which sets it apart from the Core Ultra 9 285K and its DDR5 memory.
It also comes with 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. On price it sat second of 5, between the cheaper Ryzen 7 9800X3D and the pricier Ryzen 7 9850X3D, at the time of writing.
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
- L3 cache trails the Ryzen 9 9950X3D (128MB)
- Costs more than the Ryzen 7 9800X3D at the time of writing
The catch
The trade-off is L3 cache; for more, the Ryzen 9 9950X3D offers 128MB.
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.

- What we compared
- We set side by side five processors on L3 cache, boost clock, core count and rated power from manufacturer specifications. Nothing was tested in-house; 9 of the 9 fields compared are stated for every pick.
- What every pick has in common
- All 5, from the Ryzen 7 9850X3D to the Core i9-14900K, state L3 cache, boost clock and core count and share integrated graphics.
- Who each pick suits
- The Ryzen 7 9850X3D for a 5.6GHz boost with 96MB of L3; the Ryzen 7 9800X3D for 96MB of L3 on eight Zen 5 cores; the Ryzen 9 9950X3D for the largest L3 cache here (128MB).
- Price range
- At our last check the picks ran from the Ryzen 7 9800X3D ($250 to $500) to the Ryzen 9 9950X3D ($500 to $1000).
What to Look for in a High-End Gaming CPUs
Key buying criteria so you get the right fit the first time.
L3 cache
Here L3 cache runs from 36MB on the Core i9-14900K to 128MB on the Ryzen 9 9950X3D, a 256% spread. The Ryzen 7 9850X3D comes second at 96MB, in the $250 to $500 tier against $500 to $1000 for the Ryzen 9 9950X3D.
Boost clock across these picks
Across these 5 picks boost clock spans 5.2GHz (the Ryzen 7 9800X3D) to 6GHz (the Core i9-14900K). If boost clock is your first filter, the Core i9-14900K sets the ceiling at 6GHz.

An Intel stock cooler mounted over the CPU socket inside a PC How much core count you need
Across these 5 picks core count spans 8 cores (the Ryzen 7 9800X3D) to 24 cores (the Core Ultra 9 285K). The Core i9-14900K comes second at 24 cores, in the $250 to $500 tier against $500 to $1000 for the Core Ultra 9 285K.
Memory
The Ryzen 7 9850X3D, the Ryzen 7 9800X3D, the Ryzen 9 9950X3D and the Core Ultra 9 285K list DDR5; the Core i9-14900K lists DDR4 or DDR5. Settling memory first narrows 5 picks to 4 or 1.
Cooler in box
The Ryzen 7 9850X3D, the Ryzen 7 9800X3D, the Ryzen 9 9950X3D, the Core Ultra 9 285K and the Core i9-14900K go without. Sort out cooler in box before price: it splits 5 stated picks into groups of 5.
How to Choose a High-End Gaming CPUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Pure gaming at high refresh rates | Ryzen 7 9850X3D | A 5.6GHz boost with 96MB of L3 |
| High-end gaming for less | Ryzen 7 9800X3D | 96MB of L3 on eight Zen 5 cores |
| Games that are limited by the CPU at high frame rates | Ryzen 9 9950X3D | The largest L3 cache here (128MB) |
| New Intel high-end builds | Core Ultra 9 285K | 24 cores with a 5.7GHz boost on LGA1851 |
| Existing Z690 and Z790 boards | Core i9-14900K | A 6.0GHz listed boost |
Scroll sideways to see every column.
Key specs side by side
The Ryzen 9 9950X3D leads on L3 cache at 128MB, ahead of the Ryzen 7 9850X3D at 96MB.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Ryzen 7 9850X3D | 96MB | 5.6GHz | 8 cores | 120W |
| Ryzen 7 9800X3D | 96MB | 5.2GHz | 8 cores | 120W |
| Ryzen 9 9950X3D | 128MB | 5.7GHz | 16 cores | 170W |
| Core Ultra 9 285K | 36MB | 5.7GHz | 24 cores | 125W |
| Core i9-14900K | 36MB | 6GHz | 24 cores | 125W |
Scroll sideways to see every column.
By price at the time of writing
The Ryzen 7 9800X3D was the lowest-priced pick ($250 to $500) and the Ryzen 9 9950X3D the highest ($500 to $1000) when we checked; tiers move with Amazon pricing.
| Price tier | Processors |
|---|---|
| About $250 to $500 | Ryzen 7 9800X3D, Core i9-14900K, Ryzen 7 9850X3D |
| About $500 to $1000 | Core Ultra 9 285K, Ryzen 9 9950X3D |
Frequently Asked Questions
Which has the largest L3 cache: the Ryzen 9 9950X3D or the Ryzen 7 9850X3D?
The Ryzen 9 9950X3D tops L3 cache at 128MB; the Ryzen 7 9850X3D follows at 96MB, 33% apart. The Core i9-14900K closes the ranking at 36MB.
Is the Core i9-14900K ahead of the Ryzen 9 9950X3D on boost clock?
The Core i9-14900K leads at 6GHz, with the Ryzen 9 9950X3D at 5.7GHz. The Ryzen 7 9800X3D is at the other end of this group with 5.2GHz.
What does the Ryzen 9 9950X3D add over the Ryzen 7 9800X3D?
The spec sheets show L3 cache (128MB against 96MB), boost clock (5.7GHz against 5.2GHz) and core count (16 cores against 8 cores) in its favour. It does not win everywhere: the Ryzen 7 9800X3D still leads on rated power (120W). On our last price check the Ryzen 7 9800X3D was in the $250 to $500 tier and the Ryzen 9 9950X3D in the $500 to $1000 tier, with 3 other picks between them; pay the difference only if L3 cache and boost clock decide your purchase.
Why is the Ryzen 7 9850X3D our Best High-End Gaming Chip pick?
The label rests on a 5.6GHz boost with 96MB of L3. It is aimed at pure gaming at high refresh rates.
Do the Ryzen 7 9850X3D and the Core Ultra 9 285K differ on socket?
The Ryzen 7 9850X3D, the Ryzen 7 9800X3D and the Ryzen 9 9950X3D use AM5; the Core Ultra 9 285K uses LGA1851; the Core i9-14900K uses LGA1700.
What extras do the Ryzen 7 9850X3D and the Ryzen 7 9800X3D include?
The Ryzen 7 9850X3D: a higher-clocked take on the 9800X3D design. The Ryzen 7 9800X3D: second-generation 3D V-Cache placed under the cores. The Ryzen 9 9950X3D: 3D V-Cache on one of its two core dies.
Bottom Line
The Ryzen 7 9850X3D is the best high-end gaming chip, and the 9800X3D delivers nearly the same for less. The Ryzen 9 9950X3D suits creators, the Core Ultra 9 285K is Intel's new flagship, and the i9-14900K upgrades existing LGA1700 boards.
Related Guides
- Related guideThe Best High-End Ryzen CPUs for Gaming
- Related guideThe Best High-End Intel CPUs for Gaming
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- Lower budgetThe Best Budget CPUs for a Gaming PC
- Similar guideThe Best CPU for Gaming
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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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