Buying Guide
The Best 6-Core CPUs
Four processors compared, from the Core i5-12400F to the Ryzen 5 5600G, with the trade-offs of each named.
By The PC Journal editorial team
11 min read4 products evaluated
Six cores is still the entry point for a gaming PC, and clock speed and cache decide most of the difference between chips. Every pick has six cores, ordered by boost clock.
We sorted these picks by L3 cache, max boost and cores / threads, working from the makers' own data; any figure a maker omits is noted as missing, and no figure here comes from our own testing.
Quick Picks
Our 4 recommendations at a glance. Tap a pick for the full verdict.
Highest Boost Clock
AMD Ryzen 5 9600X
The highest boost clock here (5.4GHz).
Best for: Buyers who put boost clock first.
Our take Check price for AMD Ryzen 5 9600X (opens in a new tab)
Also Consider
AMD Ryzen 5 7600X
The Zen 4 architecture.
Best for: Buyers who want Zen 4 architecture.
Our take Check price for AMD Ryzen 5 7600X (opens in a new tab)
Lowest Price Here
Intel Core i5-12400F
Undercutting the Ryzen 5 7600X on price when we checked.
Best for: Spending as little as possible.
Our take Check price for Intel Core i5-12400F (opens in a new tab)
Premium Pick
AMD Ryzen 5 5600G
The top of this price range, adding Radeon integrated graphics.
Best for: Spending more for the fullest feature set.
Our take Check price for AMD Ryzen 5 5600G (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| The highest boost clock here (5.4GHz). | Buyers who put boost clock first. | Check price for AMD Ryzen 5 9600X (opens in a new tab) |
| The Zen 4 architecture. | Buyers who want Zen 4 architecture. | Check price for AMD Ryzen 5 7600X (opens in a new tab) |
| Undercutting the Ryzen 5 7600X on price when we checked. | Spending as little as possible. | Check price for Intel Core i5-12400F (opens in a new tab) |
| The top of this price range, adding Radeon integrated graphics. | Spending more for the fullest feature set. | Check price for AMD Ryzen 5 5600G (opens in a new tab) |
Our Picks
Highest Boost Clock1 of 4
AMD Ryzen 5 9600X on Amazon (opens in a new tab)
The Ryzen 5 9600X brings six Zen 5 cores to AM5 at a 65W rating, which keeps cooling simple.
Best for
- Buyers who put boost clock first.
Skip if
- Skip it if this is a deal-breaker for you: 6 cores leave less headroom for streaming alongside games.
Why we like it
It suits a budget build now that can take an X3D chip later without changing boards. On L3 cache it ties with the Ryzen 5 7600X at 32MB. Nothing else here matches its 5.4GHz boost clock; the Ryzen 5 7600X comes closest at 5.3GHz.
It matches the Ryzen 5 5600G on rated power (65W). It shares an AM5 socket with the Ryzen 5 7600X; the Ryzen 5 5600G goes with an AM4 socket. You also get the Zen 5 architecture.
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. On price it sat third of 4, between the cheaper Ryzen 5 7600X and the pricier Ryzen 5 5600G, at the time of writing. The main gap: no cooler in box, unlike the Ryzen 5 5600G. If that matters, the Ryzen 5 5600G has it.
Key dimensions & specs
- L3 cache: 32MB
- Max boost: 5.4GHz
- Cores / threads: 6 cores
- Rated power: 65W
- Threads: 12
- Socket: AM5
- Memory: DDR5
- Cooler in box: No
- Integrated graphics: Yes
Pros
- 65W rating suits a modest air cooler
- Integrated graphics for display output without a graphics card
- The Zen 5 architecture
- L3 cache of 32MB, ahead of the Core i5-12400F
Cons
- 6 cores leave less headroom for streaming alongside games
- No cooler in the box
- Costs more than the Core i5-12400F at the time of writing
Also Consider2 of 4
AMD Ryzen 5 7600X on Amazon (opens in a new tab)
The Ryzen 5 7600X is the least expensive route to 240Hz here, with six Zen 4 cores on AM5.
Best for
- Buyers who want Zen 4 architecture.
Skip if
- Pass on it if 6 cores leave less headroom for streaming alongside game rules it out for your setup.
Why we like it
It needs an aftermarket cooler, since none is included. It matches the Ryzen 5 9600X on L3 cache (32MB). Its 5.3GHz boost clock ranks second of 4 here, behind the Ryzen 5 9600X (5.4GHz) and ahead of the Ryzen 5 5600G (4.4GHz).
On rated power it sits mid-pack at 105W: the Ryzen 5 9600X offers 65W, and the Core i5-12400F comes in at 125W. Like the Ryzen 5 9600X, it has an AM5 socket, while the Core i5-12400F uses an LGA1700 socket. It also offers the Zen 4 architecture, a 5nm process and PCIe 5.0 support on AM5.
It was priced above the Core i5-12400F and below the Ryzen 5 9600X at the time of writing. What it gives up: no cooler in box, unlike the Ryzen 5 5600G; by contrast, the Ryzen 5 5600G has it.
Key dimensions & specs
- L3 cache: 32MB
- Max boost: 5.3GHz
- Cores / threads: 6 cores
- Rated power: 105W
- Threads: 12
- Socket: AM5
- Memory: DDR5
- Cooler in box: No
- Integrated graphics: Yes
Pros
- Integrated graphics for display output without a graphics card
- The Zen 4 architecture
- 5nm process
- PCIe 5.0 support on AM5
Cons
- 6 cores leave less headroom for streaming alongside games
- No cooler in the box
- Costs more than the Core i5-12400F at the time of writing
Lowest Price Here3 of 4
Intel Core i5-12400F on Amazon (opens in a new tab)
The Core i5-12400F is a six-core LGA1700 chip at a low price.
Best for
- Spending as little as possible.
Skip if
- Choose another pick if you can't accept this: 6 cores leave less headroom for streaming alongside games.
Why we like it
This is the OEM pack, so budget for a cooler; it suits a low-cost gaming build with DDR4. Its 18MB L3 cache ranks third of 4 here, behind the Ryzen 5 9600X (32MB) and ahead of the Ryzen 5 5600G (16MB). It matches the Ryzen 5 5600G on boost clock (4.4GHz).
On rated power it trails the group at 125W, while the Ryzen 5 9600X offers 65W. No other pick in this guide offers an LGA1700 socket; compare the Ryzen 5 7600X, which has an AM5 socket. It is the only pick here with DDR4 or DDR5 memory; the Ryzen 5 7600X has DDR5 memory instead.
You also get six performance cores, DDR4 and DDR5 support and 600- and 700-series chipset support. It cost the least of the 4 picks at the time of writing, with the Ryzen 5 7600X the next step up.
Key dimensions & specs
- L3 cache: 18MB
- Max boost: 4.4GHz
- Cores / threads: 6 cores
- Rated power: 125W
- Threads: 12
- Socket: LGA1700
- Memory: DDR4 or DDR5
- Cooler in box: No
- Integrated graphics: No
Pros
- Six performance cores
- DDR4 and DDR5 support
- 600- and 700-series chipset support
- L3 cache of 18MB, ahead of the Ryzen 5 5600G
Cons
- 6 cores leave less headroom for streaming alongside games
- No cooler in the box
- No integrated graphics, so a graphics card is required
Premium Pick4 of 4
AMD Ryzen 5 5600G on Amazon (opens in a new tab)
The Ryzen 5 5600G pairs six Zen 3 cores with Radeon integrated graphics and a boxed cooler.
Best for
- Spending more for the fullest feature set.
Skip if
- Worth skipping when 6 cores leave less headroom for streaming alongside game is a problem.
Why we like it
It runs lighter games without a graphics card on cheap AM4 boards and DDR4 memory, and a card can be added later. On L3 cache it trails the group at 16MB, while the Ryzen 5 9600X offers 32MB. On boost clock it ties with the Core i5-12400F at 4.4GHz.
It matches the Ryzen 5 9600X on rated power (65W). You get an AM4 socket here, which sets it apart from the Ryzen 5 9600X and its an AM5 socket. DDR4 memory is unique to it among these picks, while the Ryzen 5 7600X uses DDR5 memory.
It drops into an AM4 board with DDR4 memory; older B450 and X470 boards need a BIOS that supports this chip, so check the support list before swapping. It was the most expensive pick when we checked, so weigh what it adds over the Ryzen 5 9600X.
Key dimensions & specs
- L3 cache: 16MB
- Max boost: 4.4GHz
- Cores / threads: 6 cores
- Rated power: 65W
- Threads: 12
- Socket: AM4
- Memory: DDR4
- Cooler in box: Yes
- Integrated graphics: Yes
Pros
- 65W rating suits a modest air cooler
- Wraith Stealth cooler in the box
- Integrated graphics for display output without a graphics card
- Radeon integrated graphics
Cons
- 6 cores leave less headroom for streaming alongside games
- AM4 is a final-generation platform with no newer CPUs coming
- L3 cache trails the Ryzen 5 9600X (32MB)
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- Power and cooling
- We recorded each chip's rated power and what cooler class it needs.
- Upgrade path
- We considered how long each socket is likely to receive new CPUs.
- Game-relevant specs
- We compared L3 cache, boost clocks and core counts from AMD's and Intel's product pages.
- Platform cost
- We noted socket, memory type and whether a cooler is included, since they change the real price.
What to Look for in a 6-Core CPUs
Key buying criteria so you get the right fit the first time.
Where these picks differ: L3 cache
Among these picks, L3 cache runs from 16MB on the Ryzen 5 5600G to 32MB on the Ryzen 5 9600X. Pick the lowest figure that covers your use; the extra usually costs more than it returns.
Match the CPU to your graphics card and monitor
At 1440p and 4K the graphics card sets most frame rates, so a mid-range CPU is often enough. At 1080p with a high-refresh monitor, the CPU matters much more.
Spend on the part that limits your games, not on the bigger number.
The socket decides your upgrade path
The socket fixes which motherboards and future CPUs you can use. AM5 has had several CPU generations; AM4 has no newer chips coming.
If you plan to upgrade later, a current platform is worth a small premium.
Cores matter for streaming and creation
Six and eight cores cover gaming. Streaming with CPU encoding, video editing and compiling benefit from twelve or sixteen.
If you encode on the graphics card instead, core count matters less.
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 6-Core CPUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Buyers who put boost clock first | Ryzen 5 9600X | The highest boost clock here (5.4GHz) |
| Buyers who want Zen 4 architecture | Ryzen 5 7600X | The Zen 4 architecture |
| Spending as little as possible | Core i5-12400F | Undercutting the Ryzen 5 7600X on price when we checked |
| Spending more for the fullest feature set | Ryzen 5 5600G | The top of this price range, adding Radeon integrated graphics |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Ryzen 5 9600X | 32MB | 5.4GHz | 6 cores | 65W |
| Ryzen 5 7600X | 32MB | 5.3GHz | 6 cores | 105W |
| Core i5-12400F | 18MB | 4.4GHz | 6 cores | 125W |
| Ryzen 5 5600G | 16MB | 4.4GHz | 6 cores | 65W |
Scroll sideways to see every column.
Frequently Asked Questions
Which pick leads on boost clock?
The Ryzen 5 9600X leads at 5.4GHz, ahead of the Ryzen 5 7600X at 5.3GHz; the Ryzen 5 5600G sits at the other end with 4.4GHz.
Which pick costs the least here?
The Core i5-12400F. It undercut the Ryzen 5 7600X when we checked, while the Ryzen 5 5600G cost the most of the group.
Do I need to buy a separate cooler?
Usually yes. Only some chips, such as the Ryzen 5 7600 and 5600X, include a basic cooler; unlocked high-end models do not.
What does the rated power figure mean?
It is AMD's default TDP or Intel's base power. Chips can draw more under boost, so size the cooler for sustained loads, not the label alone.
Should I choose Intel or AMD for gaming?
At the high end, AMD's X3D chips lead in many CPU-limited games. Intel's Core Ultra chips offer more cores for work at similar prices. Choose by workload and platform cost.
Bottom Line
Our first pick is the Ryzen 5 9600X, chosen for the highest boost clock here (5.4GHz). Look at the Ryzen 5 7600X for the Zen 4 architecture, the Core i5-12400F for undercutting the Ryzen 5 7600X on price when we checked and the Ryzen 5 5600G for the top of this price range, adding Radeon integrated graphics if those matter more to you.
Spend the savings over an eight-core chip on the graphics card; games gain more from it.