Buying Guide
The Best CPUs for the RX 9070 XT
Six processors for an RX 9070 XT at 1440p and 4K, compared on game cache, cores and platform.
By Alex Morgan, PC Hardware Editor
12 min read6 products evaluated
AMD's RX 9070 XT is a 16GB card for 1440p high refresh and entry 4K. It pairs naturally with an AM5 X3D chip, though Intel and AM4 builds work too.
We compared six processors on L3 cache, cores and platform cost, using manufacturer specifications. We did not run our own benchmarks.
Quick Picks
Which of the 6 picks to look at first. Tap a name for the full analysis.
Best Match for an RX 9070 XT
AMD Ryzen 7 7800X3DEight cores with 96MB of L3 on AM5.
Best for: 1440p high-refresh builds.
Check price for AMD Ryzen 7 7800X3D on Amazon (opens in a new tab)
Fastest Gaming Pick
AMD Ryzen 7 9800X3DEight Zen 5 cores with 96MB of L3.
Best for: Players who want the most headroom.
Check price for AMD Ryzen 7 9800X3D on Amazon (opens in a new tab)
Best Value X3D
AMD Ryzen 5 7600X3D96MB of L3 on six cores at 65W.
Best for: Keeping the total build cost down.
Check price for AMD Ryzen 5 7600X3D on Amazon (opens in a new tab)
Best Efficient Pick
AMD Ryzen 7 9700XEight cores at a 65W rating.
Best for: Small or quiet builds.
Check price for AMD Ryzen 7 9700X on Amazon (opens in a new tab)
Best Intel Pairing
Intel Core i5-14600KFourteen cores with integrated graphics and DDR4 or DDR5 support.
Best for: Intel builds with a fallback display output.
Check price for Intel Core i5-14600K on Amazon (opens in a new tab)
Best AM4 Pairing
AMD Ryzen 7 5800X3D96MB of L3 on AM4 with DDR4.
Best for: Dropping a new card into an AM4 PC.
Check price for AMD Ryzen 7 5800X3D on Amazon (opens in a new tab)
Our Picks
Best Match for an RX 9070 XT1 of 6
AMD Ryzen 7 7800X3D
The Ryzen 7 7800X3D was the first eight-core AM5 chip with 3D V-Cache.
Best for
- 1440p high-refresh builds.
Skip if
- Skip it if this is a deal-breaker for you: 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 fourth of 6 here, behind the Ryzen 7 9700X (5.5GHz) and ahead of the Ryzen 7 5800X3D (4.5GHz). On rated power it ties with the Ryzen 7 9800X3D at 120W.
It also comes with 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. It was priced above the Ryzen 7 9700X and below the Ryzen 7 5800X3D at the time of writing.
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 5 7600X3D at the time of writing
Fastest Gaming Pick2 of 6
AMD Ryzen 7 9800X3D
The Ryzen 7 9800X3D pairs 96MB of L3 cache with eight Zen 5 cores.
Best for
- Players who want the most headroom.
Skip if
- Choose another pick if you can't accept this: no cooler in the box.
Why we like it
AMD moved the cache below the cores on this generation, which lets it clock higher than the 7800X3D. On boost clock it sits mid-pack at 5.2GHz: the Ryzen 7 9700X offers 5.5GHz, and the Ryzen 7 5800X3D comes in at 4.5GHz. It matches the Ryzen 7 7800X3D on rated power (120W).
It also offers 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. It was the highest-priced of the 6 picks at the time of writing, so the case for it rests on what it adds over the Ryzen 7 5800X3D and the rest.
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
- Costs more than the Ryzen 5 7600X3D at the time of writing
Best Value 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
- Keeping the total build cost down.
Skip if
- Choose another pick if you can't accept this: 6 cores leave less headroom for streaming alongside games.
Why we like it
It is the cheapest way into AMD's cache-heavy gaming line on AM5. It matches the Ryzen 7 7800X3D, the Ryzen 7 9800X3D and the Ryzen 7 5800X3D on L3 cache (96MB). Its 4.7GHz boost clock ranks fifth of 6 here, behind the Ryzen 7 9700X (5.5GHz) and ahead of the Ryzen 7 5800X3D (4.5GHz).
On core count it trails the group at 6 cores, while the Core i5-14600K offers 14 cores. On rated power it ties with the Ryzen 7 9700X 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. It cost the least of the 6 picks at the time of writing, with the Core i5-14600K the next step up.
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
- Core count trails the Core i5-14600K (14 cores)
The catch
It gives ground on core count, where the Core i5-14600K offers 14 cores.
Best Efficient Pick4 of 6
AMD Ryzen 7 9700X
The Ryzen 7 9700X runs eight Zen 5 cores at a 65W default rating.
Best for
- Small or quiet builds.
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. Its 32MB L3 cache ranks fifth of 6 here, behind the Ryzen 7 7800X3D (96MB) and ahead of the Core i5-14600K (24MB). On boost clock it leads this guide at 5.5GHz, ahead of the Core i5-14600K (5.3GHz).
On rated power it ties with the Ryzen 5 7600X3D 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. It was priced above the Core i5-14600K and below the Ryzen 7 7800X3D at the time of writing.
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 5 7600X3D at the time of writing
Best Intel Pairing5 of 6
Intel Core i5-14600K
The Core i5-14600K is an unlocked fourteen-core LGA1700 chip.
Best for
- Intel builds with a fallback display output.
Skip if
- Skip it if this is a deal-breaker for you: no cooler in the box.
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 sits mid-pack at 5.3GHz: the Ryzen 7 9700X offers 5.5GHz, and the Ryzen 7 5800X3D comes in at 4.5GHz. On core count it leads this guide at 14 cores, ahead of the Ryzen 7 7800X3D (8 cores). Its 125W rated power is the highest in this group; the Ryzen 5 7600X3D leads at 65W.
An LGA1700 socket is unique to it among these picks, while the Ryzen 7 7800X3D uses an AM5 socket. On price it sat second of 6, between the cheaper Ryzen 5 7600X3D and the pricier Ryzen 7 9700X, at the time of writing.
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)
- Rated power trails the Ryzen 5 7600X3D (65W)
The catch
The trade-off is L3 cache; for more, the Ryzen 7 7800X3D offers 96MB.
Best AM4 Pairing6 of 6
AMD Ryzen 7 5800X3D
The Ryzen 7 5800X3D is the last X3D chip for AM4.
Best for
- Dropping a new card into an AM4 PC.
Skip if
- Pass on it if aM4 is a final-generation platform with no newer CPUs coming rules it out for your setup.
Why we like it
It lets an existing AM4 board take a cache upgrade without a new platform or DDR5. It matches the Ryzen 7 7800X3D, the Ryzen 7 9800X3D and the Ryzen 5 7600X3D on L3 cache (96MB). Its 4.5GHz boost clock is the lowest in this group; the Ryzen 7 9700X leads at 5.5GHz.
On rated power it sits mid-pack at 105W: the Ryzen 5 7600X3D offers 65W, and the Core i5-14600K comes in at 125W. It is the only pick here with an AM4 socket; the Ryzen 7 9700X has an AM5 socket instead. No other pick in this guide offers DDR4 memory; compare the Ryzen 5 7600X3D, which has DDR5 memory.
You also get a drop-in upgrade for many existing AM4 boards after a BIOS update. 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.
Key specs
- L3 cache
- 96MB
- Max boost
- 4.5GHz
- Cores / threads
- 8 cores
- Rated power
- 105W
- Threads
- 16
- Socket
- AM4
- Memory
- DDR4
- Cooler in box
- No
- Integrated graphics
- No
Pros
- 96MB of L3 cache from 3D V-Cache
- 3D V-Cache on the AM4 platform
- Drop-in upgrade for many existing AM4 boards after a BIOS update
- Core count of 8 cores, ahead of the Ryzen 5 7600X3D
Cons
- AM4 is a final-generation platform with no newer CPUs coming
- No cooler in the box
- No integrated graphics, so a graphics card is required
The catch
Boost clock is its weakest area, and the Ryzen 7 9700X covers it better at 5.5GHz.
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.
- How these picks were ranked
- We lined up 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 5800X3D, state L3 cache, boost clock and core count.
- Who each pick suits
- The Ryzen 7 7800X3D for eight cores with 96MB of L3 on AM5; the Ryzen 7 9800X3D for eight Zen 5 cores with 96MB of L3; the Ryzen 5 7600X3D for 96MB of L3 on six cores at 65W.
- Price range
- At our last check the picks ran from the Ryzen 5 7600X3D ($150 to $250) to the Ryzen 7 9800X3D ($250 to $500).
What to Look for in a CPUs for RX 9070 XT
Key buying criteria so you get the right fit the first time.
L3 cache
Across these 6 picks L3 cache spans 24MB (the Core i5-14600K) to 96MB (the Ryzen 7 7800X3D). If L3 cache is your first filter, the Ryzen 7 7800X3D sets the ceiling at 96MB.
How much boost clock you need
Here boost clock runs from 4.5GHz on the Ryzen 7 5800X3D to 5.5GHz on the Ryzen 7 9700X, a 22% spread. The Core i5-14600K comes second at 5.3GHz, in the $150 to $250 tier against $250 to $500 for the Ryzen 7 9700X.
A desktop CPU seated in its motherboard socket with the retention frame open Core count across these picks
Here core count runs from 6 cores on the Ryzen 5 7600X3D to 14 cores on the Core i5-14600K, a 133% spread. The Core i5-14600K is the pick for core count.
Memory
The Ryzen 7 7800X3D, the Ryzen 7 9800X3D, the Ryzen 5 7600X3D and the Ryzen 7 9700X list DDR5; the Core i5-14600K lists DDR4 or DDR5; the Ryzen 7 5800X3D lists DDR4. Settling memory first narrows 6 picks to 4 or 1 or 1.
Cooler in box
The Ryzen 7 7800X3D, the Ryzen 7 9800X3D, the Ryzen 5 7600X3D, the Ryzen 7 9700X, the Core i5-14600K and the Ryzen 7 5800X3D go without.
How to Choose a CPUs for RX 9070 XT
By priority
| Priority | Consider | Why |
|---|---|---|
| 1440p high-refresh builds | Ryzen 7 7800X3D | Eight cores with 96MB of L3 on AM5 |
| Players who want the most headroom | Ryzen 7 9800X3D | Eight Zen 5 cores with 96MB of L3 |
| Keeping the total build cost down | Ryzen 5 7600X3D | 96MB of L3 on six cores at 65W |
| Small or quiet builds | Ryzen 7 9700X | Eight cores at a 65W rating |
| Intel builds with a fallback display output | Core i5-14600K | Fourteen cores with integrated graphics and DDR4 or DDR5 support |
| Dropping a new card into an AM4 PC | Ryzen 7 5800X3D | 96MB of L3 on AM4 with DDR4 |
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 7 9800X3D at 96MB.
| Processor | L3 cache | Max boost | Cores / threads | Rated power |
|---|---|---|---|---|
| Ryzen 7 7800X3D | 96MB | 5GHz | 8 cores | 120W |
| Ryzen 7 9800X3D | 96MB | 5.2GHz | 8 cores | 120W |
| Ryzen 5 7600X3D | 96MB | 4.7GHz | 6 cores | 65W |
| Ryzen 7 9700X | 32MB | 5.5GHz | 8 cores | 65W |
| Core i5-14600K | 24MB | 5.3GHz | 14 cores | 125W |
| Ryzen 7 5800X3D | 96MB | 4.5GHz | 8 cores | 105W |
Scroll sideways to see every column.
By price at the time of writing
At our last check the cheapest pick, the Ryzen 5 7600X3D, sat in the $150 to $250 tier, 2 tiers in all up to the Ryzen 7 9800X3D at $250 to $500; Amazon prices move, so recheck before buying.
| Price tier | Processors |
|---|---|
| About $150 to $250 | Ryzen 5 7600X3D, Core i5-14600K |
| About $250 to $500 | Ryzen 7 9700X, Ryzen 7 7800X3D, Ryzen 7 5800X3D, Ryzen 7 9800X3D |
Frequently Asked Questions
How does the Core i5-14600K compare with the Ryzen 7 9700X on boost clock?
The Ryzen 7 9700X leads at 5.5GHz, with the Core i5-14600K at 5.3GHz. The Ryzen 7 5800X3D closes the ranking at 4.5GHz.
Is the Core i5-14600K ahead of the Ryzen 7 7800X3D on core count?
The Core i5-14600K tops core count at 14 cores; the Ryzen 7 7800X3D follows at 8 cores, 75% apart. The spread runs down to the Ryzen 5 7600X3D at 6 cores.
Is the Ryzen 7 9800X3D worth paying more than the Ryzen 5 7600X3D?
The spec sheets show boost clock (5.2GHz against 4.7GHz) and core count (8 cores against 6 cores) in its favour. It does not win everywhere: the Ryzen 5 7600X3D still leads on rated power (65W). The Ryzen 5 7600X3D sat in the $150 to $250 tier and the Ryzen 7 9800X3D in the $250 to $500 tier when we checked, with 4 other picks between them; pay the difference only if boost clock and core count decide your purchase.
What makes the Ryzen 7 7800X3D the Best Match for an RX 9070 XT?
It earns the label for eight cores with 96MB of L3 on AM5. It gives up rated power (120W against 65W) to the Ryzen 5 7600X3D, the cheapest pick. It suits 1440p high-refresh builds.
Do the Ryzen 7 7800X3D and the Core i5-14600K differ on socket?
The Ryzen 7 7800X3D, the Ryzen 7 9800X3D, the Ryzen 5 7600X3D and the Ryzen 7 9700X use AM5; the Core i5-14600K uses LGA1700; the Ryzen 7 5800X3D uses AM4.
Beyond the specs, what sets the Ryzen 7 7800X3D and the Ryzen 7 9800X3D apart?
The Ryzen 7 7800X3D: first-generation AM5 3D V-Cache. The Ryzen 7 9800X3D: second-generation 3D V-Cache placed under the cores. The Ryzen 5 7600X3D: 96MB of L3 cache on a six-core chip.
Bottom Line
The Ryzen 7 7800X3D is the balanced choice for an RX 9070 XT. The 9800X3D adds headroom, the 7600X3D saves money, the i5-14600K suits Intel, and the 5800X3D keeps an AM4 PC going.
Related Guides
- Related guideThe Best CPUs for 1440p Gaming
- Related guideThe Best AMD CPUs for Gaming
- Related guideThe Best AMD Radeon Graphics Cards
- Lower budgetThe Best Budget CPUs
- Higher budgetThe Best High-End Intel CPUs for Gaming
- ExplainerHow to Choose a CPU for Your PC
- ExplainerCPU Name Suffixes Explained: K, KF, F, X, X3D and G
- Check compatibility: motherboardsHow to Choose a Motherboard for Your PC Build
- Similar guideThe Best CPUs for the RX 9070 XT by Cores
- Topic hubAll processors guides
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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