Consumercarts is reader-supported. Learn more
AMD Ryzen 9 9900X3D vs Intel Core i9-12900K: Comparison
AMD Ryzen 9 9900X3D vs Intel Core i9-12900K: the l3 cache difference
L3 cache is where these two genuinely part company, AMD Ryzen 9 9900X3D 128 MB against Intel Core i9-12900K 30 MB, a 77% lead for AMD Ryzen 9 9900X3D. They differ on tdp too, 120 W on the AMD Ryzen 9 9900X3D versus 125 W on the Intel Core i9-12900K. Socket is not the same on both, AM5 on the AMD Ryzen 9 9900X3D versus FCLGA1700 on the Intel Core i9-12900K. Socket status is not the same on both, Current on the AMD Ryzen 9 9900X3D versus Mature on the Intel Core i9-12900K.
AMD Ryzen 9 9900X3D vs Intel Core i9-12900K: which one fits your build
The AMD Ryzen 9 9900X3D suits high-refresh-rate gaming and flagship gaming builds, though it is not the pick for budget builds and non-gaming workstation loads. The Intel Core i9-12900K is the one to take for enthusiast desktop gaming and overclocking, though it is not built for laptops and fanless designs. Our rating of the AMD Ryzen 9 9900X3D (9.2/10): the AMD Ryzen 9 9900X3D is one of the best gaming CPUs available, its huge L3 cache translating directly into higher in-game frame rates. Our rating of the Intel Core i9-12900K (7.9/10): the Intel Core i9-12900K is an unlocked overclockable chip, well suited to enthusiast gaming and productivity builds.
What AMD Ryzen 9 9900X3D and Intel Core i9-12900K have in common
Where they agree, they agree completely, total threads, integrated graphics, form factor, market segment and smt enabled included, so the decision does not turn on any of those. They match on 6 further specifications as well.
Frequently asked questions
Do the AMD Ryzen 9 9900X3D and Intel Core i9-12900K differ on total cores?
Yes. Total Cores reads 12 on the AMD Ryzen 9 9900X3D versus 16 on the Intel Core i9-12900K.
Is the Unlocked Multiplier the same on the AMD Ryzen 9 9900X3D and Intel Core i9-12900K?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 9900X3D
- Desktop
- Intel Core i9-12900K
- Desktop
Codename
- AMD Ryzen 9 9900X3D
- Granite Ridge
- Intel Core i9-12900K
- Alder Lake
Release Year
- AMD Ryzen 9 9900X3D
- 2025
- Intel Core i9-12900K
- 2021
TDP
- AMD Ryzen 9 9900X3D
- 120 W
- Intel Core i9-12900K
- 125 W
iGPU
- AMD Ryzen 9 9900X3D
- AMD Radeon Graphics
- Intel Core i9-12900K
- Intel UHD Graphics 770
Market Segment
- AMD Ryzen 9 9900X3D
- Desktop
- Intel Core i9-12900K
- Desktop
Microarchitecture
- AMD Ryzen 9 9900X3D
- Zen 5 (9000 series)
- Intel Core i9-12900K
- Alder Lake
Socket
- AMD Ryzen 9 9900X3D
- AM5
- Intel Core i9-12900K
- FCLGA1700
Socket Status
- AMD Ryzen 9 9900X3D
- Current
- Intel Core i9-12900K
- Mature
Process Node
- AMD Ryzen 9 9900X3D
- 4 nm
- Intel Core i9-12900K
- 10 nm
Total Cores
- AMD Ryzen 9 9900X3D
- 12
- Intel Core i9-12900K
- 16Best
Performance Cores
- AMD Ryzen 9 9900X3D
- 12Best
- Intel Core i9-12900K
- 8
Efficiency Cores
- AMD Ryzen 9 9900X3D
- 0
- Intel Core i9-12900K
- 8Best
Total Threads
- AMD Ryzen 9 9900X3D
- 24
- Intel Core i9-12900K
- 24
SMT Enabled
- AMD Ryzen 9 9900X3D
- Yes
- Intel Core i9-12900K
- Yes
P-Core Base Clock
- AMD Ryzen 9 9900X3D
- 4.4 GHz
- Intel Core i9-12900K
- 3.2 GHz
P-Core Boost Clock
- AMD Ryzen 9 9900X3D
- 5.5 GHz
- Intel Core i9-12900K
- 5.1 GHz
Unlocked Multiplier
- AMD Ryzen 9 9900X3D
- Yes
- Intel Core i9-12900K
- Yes
L2 Cache
- AMD Ryzen 9 9900X3D
- 12 MB-14%
- Intel Core i9-12900K
- 14 MBBest
L3 Cache
- AMD Ryzen 9 9900X3D
- 128 MBBest
- Intel Core i9-12900K
- 30 MB-77%
Base Power
- AMD Ryzen 9 9900X3D
- 120 W
- Intel Core i9-12900K
- 125 W
Max Turbo Power
- AMD Ryzen 9 9900X3D
- 162 W
- Intel Core i9-12900K
- 241 W
Bundled Cooler
- AMD Ryzen 9 9900X3D
- None
- Intel Core i9-12900K
- None
Memory Type
- AMD Ryzen 9 9900X3D
- DDR5
- Intel Core i9-12900K
- DDR5 or DDR4
Max Memory Speed
- AMD Ryzen 9 9900X3D
- 5600 MT/sBest
- Intel Core i9-12900K
- 4800 MT/s
Memory Channels
- AMD Ryzen 9 9900X3D
- 2
- Intel Core i9-12900K
- 2
Max Memory Capacity
- AMD Ryzen 9 9900X3D
- 256 GBBest
- Intel Core i9-12900K
- 128 GB
Integrated Graphics
- AMD Ryzen 9 9900X3D
- Yes
- Intel Core i9-12900K
- Yes
iGPU Model
- AMD Ryzen 9 9900X3D
- AMD Radeon Graphics
- Intel Core i9-12900K
- Intel UHD Graphics 770
iGPU Compute Units
- AMD Ryzen 9 9900X3D
- 2
- Intel Core i9-12900K
- 32
Copilot Plus Certified
- AMD Ryzen 9 9900X3D
- No
- Intel Core i9-12900K
- No
PCIe Generation
- AMD Ryzen 9 9900X3D
- PCIe 5.0
- Intel Core i9-12900K
- PCIe 5.0
PCIe Lanes
- AMD Ryzen 9 9900X3D
- 24
- Intel Core i9-12900K
- 20-17%
Retail Availability
- AMD Ryzen 9 9900X3D
- Boxed Retail
- Intel Core i9-12900K
- Boxed Retail
Which one should you pick?
Choose 9900X3D if you want the higher L3 cache (128 MB vs 30 MB), the higher memory channels (2 vs 2) and the higher PCIe lanes (24 vs 20).
Choose 12900K if you want the higher L2 cache (14 MB vs 12 MB).
Price comparison
| Retailer | AMD Ryzen 9 9900X3D | Intel Core i9-12900K |
|---|---|---|
| Amazon | View on Amazon | $589.00 View on Amazon |
| Newegg | View on Newegg | View on Newegg |
| Best Buy | View on Best Buy | |
| B&H Photo | View on B&H Photo |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
AMD Ryzen 9 9900X3D
9.2 / 10 Expert Rating
The AMD Ryzen 9 9900X3D is one of the best gaming CPUs available, its huge L3 cache translating directly into higher in-game frame rates.
Intel Core i9-12900K
7.9 / 10 Expert Rating
The Intel Core i9-12900K is an unlocked overclockable chip, well suited to enthusiast gaming and productivity builds.