Buying Guide
The Best Ryzen 9 CPUs for Gaming
We weighed four processors on L3 cache and boost clock; the Ryzen 9 9950X3D has the largest L3 cache, and the Ryzen 9 7900 costs the least.
By The PC Journal editorial team
11 min read4 products evaluated
Ryzen 9 chips add cores for streaming, rendering and compiling on top of gaming. Every pick is a Ryzen 9, ordered by core count.
We ranked these processors on L3 cache, max boost and cores / threads using manufacturer specifications; we did not test these processors ourselves, and where a maker leaves a figure out, we say so.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Also Consider
AMD Ryzen 9 9950X
AMD's recommendation of a liquid cooler.
Best for: Buyers who want AMD's recommendation of a liquid cooler.
Our take Check price for AMD Ryzen 9 9950X (opens in a new tab)
Largest Game Cache
AMD Ryzen 9 9950X3D
The largest L3 cache here (128MB).
Best for: Games that are limited by the CPU at high frame rates.
Our take Check price for AMD Ryzen 9 9950X3D (opens in a new tab)
Lowest Rated Power
AMD Ryzen 9 7900
The lowest rated power here (65W).
Best for: Buyers who put rated power first.
Our take Check price for AMD Ryzen 9 7900 (opens in a new tab)
Strong Alternative
AMD Ryzen 9 7900X
The Zen 4 architecture.
Best for: Buyers who want Zen 4 architecture.
Our take Check price for AMD Ryzen 9 7900X (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| AMD's recommendation of a liquid cooler. | Buyers who want AMD's recommendation of a liquid cooler. | Check price for AMD Ryzen 9 9950X (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 (opens in a new tab) |
| The lowest rated power here (65W). | Buyers who put rated power first. | Check price for AMD Ryzen 9 7900 (opens in a new tab) |
| The Zen 4 architecture. | Buyers who want Zen 4 architecture. | Check price for AMD Ryzen 9 7900X (opens in a new tab) |
Our Picks
Also Consider1 of 4
AMD Ryzen 9 9950X on Amazon (opens in a new tab)
The Ryzen 9 9950X gives 16 cores and 32 threads without the X3D premium.
Best for
- Buyers who want AMD's recommendation of a liquid cooler.
Skip if
- Worth skipping when 170W rating calls for a large air cooler or a 280mm-plus AI is a problem.
Why we like it
It is the better buy when CPU encoding and editing matter more than the last few frames per second. On L3 cache it ties with the Ryzen 9 7900 and the Ryzen 9 7900X at 64MB. On boost clock it ties with the Ryzen 9 9950X3D at 5.7GHz.
It matches the Ryzen 9 9950X3D and the Ryzen 9 7900X on rated power (170W). It also comes with AMD's recommendation of a liquid cooler. 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 Ryzen 9 7900X and the Ryzen 9 9950X3D, based on our last check. The main gap: no cooler in box, unlike the Ryzen 9 7900. If that matters, the Ryzen 9 7900 has it.
Key dimensions & specs
- L3 cache: 64MB
- 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
- 64MB of L3 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
- Costs more than the Ryzen 9 7900 at the time of writing
Largest Game Cache2 of 4
AMD Ryzen 9 9950X3D on Amazon (opens in a new tab)
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
- Look at the others if this bothers you: 170W rating calls for a large air cooler or a 280mm-plus AIO.
Why we like it
It suits a single machine that must game and render. Nothing else here matches its 128MB L3 cache; the Ryzen 9 9950X comes closest at 64MB. On boost clock it ties with the Ryzen 9 9950X at 5.7GHz.
It also offers a design aimed at both games and content creation. 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.
It was the most expensive pick when we checked, so weigh what it adds over the Ryzen 9 9950X. The main gap: no cooler in box, unlike the Ryzen 9 7900. If that matters, the Ryzen 9 7900 has it.
Key dimensions & 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
- Costs more than the Ryzen 9 7900 at the time of writing
Lowest Rated Power3 of 4
AMD Ryzen 9 7900 on Amazon (opens in a new tab)
The Ryzen 9 7900 is the 65W twelve-core AM5 chip with a Wraith Prism cooler included.
Best for
- Buyers who put rated power first.
Skip if
- Skip it if boost clock matters most to you; the Ryzen 9 9950X offers 5.7GHz.
Why we like it
It trades a little boost clock for lower heat. On L3 cache it ties with the Ryzen 9 9950X and the Ryzen 9 7900X at 64MB. On boost clock it trails the group at 5.4GHz, while the Ryzen 9 9950X offers 5.7GHz.
It matches the Ryzen 9 7900X on core count (12 cores). On rated power it leads this guide at 65W, ahead of the Ryzen 9 9950X (170W). It also offers 12 cores at a 65W rating.
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. It was the cheapest of the group when we checked; the Ryzen 9 7900X was the next step up.
Key dimensions & specs
- L3 cache: 64MB
- Max boost: 5.4GHz
- Cores / threads: 12 cores
- Rated power: 65W
- Threads: 24
- Socket: AM5
- Memory: DDR5
- Cooler in box: Yes
- Integrated graphics: Yes
Pros
- 64MB of L3 cache
- 12 cores for encoding and background work
- 65W rating suits a modest air cooler
- Wraith Stealth cooler in the box
Cons
- Boost clock trails the Ryzen 9 9950X (5.7GHz)
Strong Alternative4 of 4
AMD Ryzen 9 7900X on Amazon (opens in a new tab)
The Ryzen 9 7900X has 12 Zen 4 cores on AM5.
Best for
- Buyers who want Zen 4 architecture.
Skip if
- Pass on it if 170W rating calls for a large air cooler or a 280mm-plus AI rules it out for your setup.
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 ties with the Ryzen 9 9950X and the Ryzen 9 7900 at 64MB. On boost clock it sits mid-pack at 5.6GHz: the Ryzen 9 9950X offers 5.7GHz, and the Ryzen 9 7900 comes in at 5.4GHz.
It also comes with the Zen 4 architecture, a 5nm process and PCIe 5.0 support on AM5. 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. Budget for a dual-tower air cooler or a 240mm-plus AIO, since none is included. On price it sat second of 4, between the cheaper Ryzen 9 7900 and the pricier Ryzen 9 9950X, at the time of writing.
Key dimensions & 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
- L3 cache trails the Ryzen 9 9950X3D (128MB)
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- How these picks were ranked
- We lined up four processors on L3 cache, boost clock, core count and rated power as the makers state them. We did not test them in-house.
- What every pick has in common
- All 4, from the Ryzen 9 9950X to the Ryzen 9 7900X, state L3 cache, boost clock and core count and share AM5 socket and DDR5 memory.
- Who each pick suits
- The Ryzen 9 9950X for AMD's recommendation of a liquid cooler; the Ryzen 9 9950X3D for the largest L3 cache here (128MB); the Ryzen 9 7900 for the lowest rated power here (65W).
- Price range
- At our last check the picks ran from the Ryzen 9 7900 ($250 to $500) to the Ryzen 9 9950X3D ($500 to $1000).
What to Look for in a Ryzen 9 CPUs for Gaming
Key buying criteria so you get the right fit the first time.
L3 cache
Here L3 cache runs from 64MB on the Ryzen 9 7900X to 128MB on the Ryzen 9 9950X3D. Start with the Ryzen 9 9950X3D if L3 cache decides it.
Boost clock across these picks
Here boost clock runs from 5.4GHz on the Ryzen 9 7900 to 5.7GHz on the Ryzen 9 9950X. The Ryzen 9 9950X is the pick for boost clock.
Core count across these picks
Here core count runs from 12 cores on the Ryzen 9 7900X to 16 cores on the Ryzen 9 9950X. Start with the Ryzen 9 9950X if core count decides it.
Setup checks
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 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.
Extras that separate them
The Ryzen 9 9950X3D: a design aimed at both games and content creation. The Ryzen 9 7900: 12 cores at a 65W rating. The Ryzen 9 7900X: a 5nm process.
Check BIOS support before buying
Newer CPUs on older boards may need a BIOS update before the system will start. Check the board's CPU support list for the version you need and whether the board can flash without a CPU installed.
How to Choose a Ryzen 9 CPUs for Gaming
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who want AMD's recommendation of a liquid cooler | Ryzen 9 9950X | AMD's recommendation of a liquid cooler |
| Games that are limited by the CPU at high frame rates | Ryzen 9 9950X3D | The largest L3 cache here (128MB) |
| Buyers who put rated power first | Ryzen 9 7900 | The lowest rated power here (65W) |
| Buyers who want Zen 4 architecture | Ryzen 9 7900X | The Zen 4 architecture |
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 9 9950X at 64MB.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Ryzen 9 9950X | 64MB | 5.7GHz | 16 cores | 170W |
| Ryzen 9 9950X3D | 128MB | 5.7GHz | 16 cores | 170W |
| Ryzen 9 7900 | 64MB | 5.4GHz | 12 cores | 65W |
| Ryzen 9 7900X | 64MB | 5.6GHz | 12 cores | 170W |
Scroll sideways to see every column.
By price at the time of writing
The Ryzen 9 7900 was the lowest-priced pick and the Ryzen 9 9950X3D the highest when we checked; tiers move with Amazon pricing.
| Price tier | Processors |
|---|---|
| About $250 to $500 | Ryzen 9 7900, Ryzen 9 7900X, Ryzen 9 9950X |
| About $500 to $1000 | Ryzen 9 9950X3D |
Frequently Asked Questions
Which has the largest L3 cache: the Ryzen 9 9950X3D or the Ryzen 9 9950X?
The Ryzen 9 9950X3D leads at 128MB, with the Ryzen 9 9950X at 64MB.
Is the Ryzen 9 7900 ahead of the Ryzen 9 9950X on rated power?
The Ryzen 9 7900 comes out best at 65W, with the Ryzen 9 9950X at 170W.
What does the Ryzen 9 9950X3D add over the Ryzen 9 7900?
On paper it adds L3 cache (128MB against 64MB), boost clock (5.7GHz against 5.4GHz) and core count (16 cores against 12 cores). It does not win everywhere: the Ryzen 9 7900 still leads on rated power (65W). The Ryzen 9 7900 was the lowest-priced pick when we checked, so pay the difference only if those gains matter to you.
Why is the Ryzen 9 7900 our Lowest Rated Power pick?
It earns the label for the lowest rated power here (65W). It suits anyone who put rated power first.
Does the Ryzen 9 7900 have cooler in box, and which others do?
The Ryzen 9 7900 has it; the Ryzen 9 9950X, the Ryzen 9 9950X3D and the Ryzen 9 7900X do not.
Will the Ryzen 9 7900 work with my setup?
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. In this guide it ranks third of 4, as our Lowest Rated Power pick.
Bottom Line
Our first pick is the Ryzen 9 9950X, chosen for AMD's recommendation of a liquid cooler. Look at the Ryzen 9 7900 for the lowest rated power here (65W) and the Ryzen 9 7900X for the Zen 4 architecture if those matter more to you.
A 12- or 16-core chip needs a capable cooler; budget for one.