Buying Guide
The Best CPUs for the RX 7900 XT
Six processors for an RX 7900 XT at 1440p and 4K, compared on cache, cores, power and platform.
By Alex Morgan, PC Hardware Editor
12 min read6 products evaluated
The RX 7900 XT carries 20GB of memory and targets 1440p high refresh and 4K. It benefits from an eight-core chip with plenty of L3 cache.
We compared six processors on cache, cores, rated power and platform, using manufacturer specifications.
Quick Picks
Which of the 6 picks to look at first. Tap a name for the full analysis.
Best Match for an RX 7900 XT
AMD Ryzen 7 7800X3DEight cores with 96MB of L3.
Best for: High-refresh 1440p builds.
Check price for AMD Ryzen 7 7800X3D on Amazon (opens in a new tab)
Best Low-Power Eight-Core
AMD Ryzen 7 9700XEight Zen 5 cores at a 65W rating.
Best for: Quiet builds with a modest cooler.
Check price for AMD Ryzen 7 9700X on Amazon (opens in a new tab)
Best Six-Core X3D
AMD Ryzen 5 7600X3D96MB of L3 on six cores.
Best for: Saving money for the card.
Check price for AMD Ryzen 5 7600X3D on Amazon (opens in a new tab)
Best LGA1700 Pick
Intel Core i5-14600KFourteen cores with DDR4 or DDR5 support.
Best for: Intel builds reusing memory.
Check price for Intel Core i5-14600K on Amazon (opens in a new tab)
Best Current-Socket Intel
Intel Core Ultra 7 265KTwenty cores on Intel's current platform.
Best for: Gaming plus heavy multitasking.
Check price for Intel Core Ultra 7 265K on Amazon (opens in a new tab)
Best with a Cooler
AMD Ryzen 7 7700Eight AM5 cores with a Wraith Prism cooler included.
Best for: Builds without a separate cooler budget.
Check price for AMD Ryzen 7 7700 on Amazon (opens in a new tab)
Our Picks
Best Match for an RX 7900 XT1 of 6
AMD Ryzen 7 7800X3D
The Ryzen 7 7800X3D was the first eight-core AM5 chip with 3D V-Cache.
Best for
- High-refresh 1440p builds.
Skip if
- Choose another pick if you can't accept this: no cooler in the box.
Why we like it
It carries the same 96MB of L3 as the 9800X3D at a lower boost clock and a lower price. Its 5GHz boost clock ranks fifth of 6 here, behind the Ryzen 7 9700X (5.5GHz) and ahead of the Ryzen 5 7600X3D (4.7GHz). On core count it ties with the Ryzen 7 9700X and the Ryzen 7 7700 at 8 cores.
On rated power it sits mid-pack at 120W: the Ryzen 7 9700X offers 65W, and the Core Ultra 7 265K comes in at 125W. It also offers the Zen 4 architecture. 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. At our last price check it topped the group, with the Ryzen 7 9700X the nearest cheaper option.
Key specs
- L3 cache
- 96MB
- Max boost
- 5GHz
- 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
- First-generation AM5 3D V-Cache
- The Zen 4 architecture
Cons
- No cooler in the box
- Costs more than the Ryzen 7 7700 at the time of writing
The catch
What it gives up: no cooler in box, unlike the Ryzen 7 7700; by contrast, the Ryzen 7 7700 has it.
Best Low-Power Eight-Core2 of 6
AMD Ryzen 7 9700X
The Ryzen 7 9700X runs eight Zen 5 cores at a 65W default rating.
Best for
- Quiet builds with a modest cooler.
Skip if
- Choose another pick if you can't accept this: no cooler in the box.
Why we like it
It needs only a modest cooler and has room to grow with AMD's power boost setting. It matches the Ryzen 7 7700 on L3 cache (32MB). It matches the Core Ultra 7 265K on boost clock (5.5GHz).
On core count it ties with the Ryzen 7 7800X3D and the Ryzen 7 7700 at 8 cores. On rated power it ties with the Ryzen 5 7600X3D and the Ryzen 7 7700 at 65W. 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. No cooler is included; a single-tower air cooler is enough at its rating. When we checked, only the Core Ultra 7 265K and cheaper picks cost less, and the Ryzen 7 7800X3D cost more.
Key specs
- L3 cache
- 32MB
- Max boost
- 5.5GHz
- Cores / threads
- 8 cores
- Rated power
- 65W
- Threads
- 16
- Socket
- AM5
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 5.5GHz maximum boost
- 65W rating suits a modest air cooler
- Integrated graphics for display output without a graphics card
- The Zen 5 architecture
Cons
- No cooler in the box
- Costs more than the Ryzen 7 7700 at the time of writing
The catch
What it gives up: no cooler in box, unlike the Ryzen 7 7700; by contrast, the Ryzen 7 7700 has it.
Best Six-Core X3D3 of 6
AMD Ryzen 5 7600X3D
The Ryzen 5 7600X3D brings 96MB of L3 cache to a six-core AM5 chip at a 65W rating.
Best for
- Saving money for the card.
Skip if
- Pass on it if 6 cores leave less headroom for streaming alongside games rules it out for your setup.
Why we like it
It is the cheapest way into AMD's cache-heavy gaming line on AM5. Its 4.7GHz boost clock is the lowest in this group; the Ryzen 7 9700X leads at 5.5GHz. On core count it trails the group at 6 cores, while the Core Ultra 7 265K offers 20 cores.
On rated power it ties with the Ryzen 7 9700X and the Ryzen 7 7700 at 65W. 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. When we checked, only the Ryzen 7 7700 cost less, and the Core i5-14600K cost more.
Key specs
- L3 cache
- 96MB
- Max boost
- 4.7GHz
- Cores / threads
- 6 cores
- Rated power
- 65W
- Threads
- 12
- Socket
- AM5
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 96MB of L3 cache from 3D V-Cache
- 65W rating suits a modest air cooler
- Integrated graphics for display output without a graphics card
- 96MB of L3 cache on a six-core chip
Cons
- 6 cores leave less headroom for streaming alongside games
- No cooler in the box
- Boost clock trails the Ryzen 7 9700X (5.5GHz)
The catch
Boost clock is its weakest area, and the Ryzen 7 9700X covers it better at 5.5GHz.
Best LGA1700 Pick4 of 6
Intel Core i5-14600K
The Core i5-14600K is an unlocked fourteen-core LGA1700 chip.
Best for
- Intel builds reusing memory.
Skip if
- Worth skipping when no cooler in the box is a problem.
Why we like it
It works with DDR4 or DDR5 boards, which keeps older memory useful. It boosts to 5.3GHz, and the unlocked multiplier allows overclocking on a Z-series board. On L3 cache it trails the group at 24MB, while the Ryzen 7 7800X3D offers 96MB.
On boost clock it ties with the Ryzen 7 7700 at 5.3GHz. Its 14 cores core count ranks second of 6 here, behind the Core Ultra 7 265K (20 cores) and ahead of the Ryzen 5 7600X3D (6 cores). It matches the Core Ultra 7 265K on rated power (125W).
You get an LGA1700 socket here, which sets it apart from the Ryzen 5 7600X3D and its an AM5 socket. DDR4 or DDR5 memory is unique to it among these picks, while the Ryzen 5 7600X3D uses DDR5 memory. It also comes with 6 performance and 8 efficient cores. Its price falls between the Ryzen 5 7600X3D and the Core Ultra 7 265K, based on our last check.
Key specs
- L3 cache
- 24MB
- Max boost
- 5.3GHz
- Cores / threads
- 14 cores
- Rated power
- 125W
- Threads
- 20
- Socket
- LGA1700
- Memory
- DDR4 or DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 14 cores for encoding and background work
- Integrated graphics for display output without a graphics card
- 6 performance and 8 efficient cores
- Support for both DDR4 and DDR5 boards
Cons
- No cooler in the box
- L3 cache trails the Ryzen 7 7800X3D (96MB)
- Costs more than the Ryzen 7 7700 at the time of writing
The catch
If L3 cache is your priority, the Ryzen 7 7800X3D (96MB) is the stronger choice.
Best Current-Socket Intel5 of 6
Intel Core Ultra 7 265K
The Core Ultra 7 265K uses Intel's LGA1851 platform with twenty cores.
Best for
- Gaming plus heavy multitasking.
Skip if
- Look at the others if this bothers you: no cooler in the box.
Why we like it
It is strong in multi-threaded work and supports only DDR5. On L3 cache it sits mid-pack at 30MB: the Ryzen 7 7800X3D offers 96MB, and the Core i5-14600K comes in at 24MB. On boost clock it ties with the Ryzen 7 9700X at 5.5GHz.
On core count it leads this guide at 20 cores, ahead of the Core i5-14600K (14 cores). It matches the Core i5-14600K on rated power (125W). You get an LGA1851 socket here, which sets it apart from the Ryzen 7 9700X and its an AM5 socket.
It also offers 8 performance and 12 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. Its price falls between the Core i5-14600K and the Ryzen 7 9700X, based on our last check.
Key specs
- L3 cache
- 30MB
- Max boost
- 5.5GHz
- Cores / threads
- 20 cores
- Rated power
- 125W
- Threads
- 20
- Socket
- LGA1851
- Memory
- DDR5
- Cooler in box
- No
- Integrated graphics
- Yes
Pros
- 5.5GHz maximum boost
- 20 cores for encoding and background work
- Integrated graphics for display output without a graphics card
- 8 performance and 12 efficient cores
Cons
- No cooler in the box
- Rated power trails the Ryzen 7 9700X (65W)
- Costs more than the Ryzen 7 7700 at the time of writing
The catch
If rated power is your priority, the Ryzen 7 9700X (65W) is the stronger choice.
Best with a Cooler6 of 6
AMD Ryzen 7 7700
The Ryzen 7 7700 is the 65W version of the 7700X and ships with a Wraith Prism cooler.
Best for
- Builds without a separate cooler budget.
Skip if
- Worth skipping when l3 cache of 32MB, behind the Ryzen 7 7800X3D (96MB) is a problem.
Why we like it
It gives eight AM5 cores without buying a cooler. On L3 cache it ties with the Ryzen 7 9700X at 32MB. On boost clock it ties with the Core i5-14600K at 5.3GHz.
It matches the Ryzen 7 7800X3D and the Ryzen 7 9700X on core count (8 cores). It matches the Ryzen 7 9700X and the Ryzen 5 7600X3D on rated power (65W). 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 undercut the Ryzen 5 7600X3D and every other pick on price at the time of writing. The main gap: L3 cache of 32MB, behind the Ryzen 7 7800X3D (96MB). If that matters, the Ryzen 7 7800X3D offers 96MB.
Key specs
- L3 cache
- 32MB
- Max boost
- 5.3GHz
- Cores / threads
- 8 cores
- Rated power
- 65W
- Threads
- 16
- Socket
- AM5
- Memory
- DDR5
- 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
- L3 cache of 32MB, ahead of the Core Ultra 7 265K
Cons
- L3 cache of 32MB, behind the Ryzen 7 7800X3D (96MB)
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 compared six processors on L3 cache, boost clock, core count and rated power, using each maker's published specs. These are research figures, not bench results, and every compared field is stated for all 6 picks.
- The shared baseline
- All 6, from the Ryzen 7 7800X3D to the Ryzen 7 7700, state L3 cache, boost clock and core count and share integrated graphics.
- Who each pick suits
- The Ryzen 7 7800X3D for eight cores with 96MB of L3; the Ryzen 7 9700X for eight Zen 5 cores at a 65W rating; the Ryzen 5 7600X3D for 96MB of L3 on six cores.
- Price range
- At our last check the picks ran from the Ryzen 7 7700 ($150 to $250) to the Ryzen 7 7800X3D ($250 to $500).
What to Look for in a CPUs for RX 7900 XT
Key buying criteria so you get the right fit the first time.
How much L3 cache you need
Across these 6 picks L3 cache spans 24MB (the Core i5-14600K) to 96MB (the Ryzen 7 7800X3D). For less, the Ryzen 5 7600X3D is the runner-up at 96MB ($150 to $250 tier).
Boost clock across these picks
Here boost clock runs from 4.7GHz on the Ryzen 5 7600X3D to 5.5GHz on the Ryzen 7 9700X, a 17% spread. The Core Ultra 7 265K comes second at 5.5GHz, in the same price tier as the Ryzen 7 9700X.
A desktop CPU seated in its motherboard socket with the retention frame open Core count across these picks
The Core Ultra 7 265K tops core count at 20 cores and the Ryzen 5 7600X3D sits lowest at 6 cores. For less, the Core i5-14600K is the runner-up at 14 cores ($150 to $250 tier).
Memory
The Ryzen 7 7800X3D, the Ryzen 7 9700X, the Ryzen 5 7600X3D, the Core Ultra 7 265K and the Ryzen 7 7700 list DDR5; the Core i5-14600K lists DDR4 or DDR5.
Cooler in box
The Ryzen 7 7800X3D, the Ryzen 7 9700X, the Ryzen 5 7600X3D, the Core i5-14600K and the Core Ultra 7 265K go without; the Ryzen 7 7700 has it. Sort out cooler in box before price: it splits 6 stated picks into groups of 5 and 1.
How to Choose a CPUs for RX 7900 XT
By priority
| Priority | Consider | Why |
|---|---|---|
| High-refresh 1440p builds | Ryzen 7 7800X3D | Eight cores with 96MB of L3 |
| Quiet builds with a modest cooler | Ryzen 7 9700X | Eight Zen 5 cores at a 65W rating |
| Saving money for the card | Ryzen 5 7600X3D | 96MB of L3 on six cores |
| Intel builds reusing memory | Core i5-14600K | Fourteen cores with DDR4 or DDR5 support |
| Gaming plus heavy multitasking | Core Ultra 7 265K | Twenty cores on Intel's current platform |
| Builds without a separate cooler budget | Ryzen 7 7700 | Eight AM5 cores with a Wraith Prism cooler included |
Scroll sideways to see every column.
Key specs side by side
The Ryzen 7 7800X3D leads on L3 cache at 96MB, ahead of the Ryzen 5 7600X3D at 96MB.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Ryzen 7 7800X3D | 96MB | 5GHz | 8 cores | 120W |
| Ryzen 7 9700X | 32MB | 5.5GHz | 8 cores | 65W |
| Ryzen 5 7600X3D | 96MB | 4.7GHz | 6 cores | 65W |
| Core i5-14600K | 24MB | 5.3GHz | 14 cores | 125W |
| Core Ultra 7 265K | 30MB | 5.5GHz | 20 cores | 125W |
| Ryzen 7 7700 | 32MB | 5.3GHz | 8 cores | 65W |
Scroll sideways to see every column.
By price at the time of writing
At our last check the cheapest pick, the Ryzen 7 7700, sat in the $150 to $250 tier, 2 tiers in all up to the Ryzen 7 7800X3D at $250 to $500; Amazon prices move, so recheck before buying.
| Price tier | Processors |
|---|---|
| About $150 to $250 | Ryzen 7 7700, Ryzen 5 7600X3D, Core i5-14600K |
| About $250 to $500 | Core Ultra 7 265K, Ryzen 7 9700X, Ryzen 7 7800X3D |
Frequently Asked Questions
Which has the highest core count: the Core Ultra 7 265K or the Core i5-14600K?
The Core Ultra 7 265K tops core count at 20 cores; the Core i5-14600K follows at 14 cores, 43% apart. The Ryzen 5 7600X3D is at the other end of this group with 6 cores.
Is the Ryzen 7 7800X3D worth paying more than the Ryzen 7 7700?
What it brings is L3 cache (96MB against 32MB). It does not win everywhere: the Ryzen 7 7700 still leads on boost clock (5.3GHz) and rated power (65W). The Ryzen 7 7700 sat in the $150 to $250 tier and the Ryzen 7 7800X3D in the $250 to $500 tier when we checked, with 4 other picks between them; pay the difference only if L3 cache decides your purchase.
What makes the Core Ultra 7 265K the Best Current-Socket Intel?
It earns the label for twenty cores on Intel's current platform. It gives up L3 cache (30MB against 32MB) and rated power (125W against 65W) to the Ryzen 7 7700, the cheapest pick. It makes sense for gaming plus heavy multitasking.
Do the Ryzen 7 7800X3D and the Core i5-14600K differ on socket?
The Ryzen 7 7800X3D, the Ryzen 7 9700X, the Ryzen 5 7600X3D and the Ryzen 7 7700 use AM5; the Core i5-14600K uses LGA1700; the Core Ultra 7 265K uses LGA1851.
Beyond the specs, what sets the Ryzen 7 7800X3D and the Ryzen 7 9700X apart?
The Ryzen 7 7800X3D: first-generation AM5 3D V-Cache. The Ryzen 7 9700X: the Zen 5 architecture. The Ryzen 5 7600X3D: 96MB of L3 cache on a six-core chip.
Bottom Line
The Ryzen 7 7800X3D is the best partner for an RX 7900 XT. The 9700X is the efficient alternative, the 7600X3D saves money, and the i5-14600K or Core Ultra 7 265K cover Intel builds.
Related Guides
- Related guideThe Best CPUs for 4K Gaming
- Related guideThe Best CPUs for 1440p Gaming
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- ExplainerHow to Choose a CPU for Your PC
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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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