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AMD Ryzen 9 5900X vs Intel Core i9-13900K: Comparison
What is the difference between AMD Ryzen 9 5900X and Intel Core i9-13900K?
L3 cache is where these two genuinely part company, AMD Ryzen 9 5900X 64 MB against Intel Core i9-13900K 36 MB, a 44% lead for AMD Ryzen 9 5900X. Intel Core i9-13900K also leads on l2 cache, 6 MB on the AMD Ryzen 9 5900X versus 32 MB on the Intel Core i9-13900K. Tdp is not the same on both, 105 W on the AMD Ryzen 9 5900X versus 125 W on the Intel Core i9-13900K.
Which should you buy, AMD Ryzen 9 5900X or Intel Core i9-13900K?
Take the AMD Ryzen 9 5900X for buyers wanting a genuinely balanced high-end desktop chip strong at both gaming and heavy productivity work. Avoid it for buyers who need integrated graphics, this chip requires a discrete GPU. Take the Intel Core i9-13900K for buyers on the mature LGA 1700 platform wanting flagship-tier Raptor Lake gaming and productivity performance at a lower price than the 14900K. It is the wrong buy for new builds without an existing LGA 1700 investment, the newer Arrow Lake lineup offers better power efficiency on a fresh platform. Our rating of the Intel Core i9-13900K (8.3/10): the Intel Core i9-13900K is still a powerful 24-core desktop chip, now largely matched by its cheaper 14th-gen successors.
What AMD Ryzen 9 5900X and Intel Core i9-13900K have in common
Where they agree, they agree completely, socket status, form factor, market segment, smt enabled and unlocked multiplier included, so the decision does not turn on any of those. They match on 5 further specifications as well.
AMD Ryzen 9 5900X vs Intel Core i9-13900K price
Cost splits them too. AMD Ryzen 9 5900X sits at $549, Intel Core i9-13900K at $589, 7% more.
Frequently asked questions
Do the AMD Ryzen 9 5900X and Intel Core i9-13900K differ on total cores?
Yes. Total Cores reads 12 on the AMD Ryzen 9 5900X versus 24 on the Intel Core i9-13900K.
Is the 3D Stacked Cache the same on the AMD Ryzen 9 5900X and Intel Core i9-13900K?
It is. Both are listed at No, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- AMD Ryzen 9 5900X
- AMD
- Intel Core i9-13900K
- Intel
Product Line
- AMD Ryzen 9 5900X
- Ryzen 9
- Intel Core i9-13900K
- Core i9
Form Factor
- AMD Ryzen 9 5900X
- Desktop
- Intel Core i9-13900K
- Desktop
Model Number
- AMD Ryzen 9 5900X
- 5900X
- Intel Core i9-13900K
- 13900K
Codename
- AMD Ryzen 9 5900X
- Vermeer
- Intel Core i9-13900K
- Raptor Lake
Release Year
- AMD Ryzen 9 5900X
- 2020
- Intel Core i9-13900K
- 2022
TDP
- AMD Ryzen 9 5900X
- 105 W
- Intel Core i9-13900K
- 125 W
iGPU
- AMD Ryzen 9 5900X
- None
- Intel Core i9-13900K
- Intel UHD Graphics 770
Market Segment
- AMD Ryzen 9 5900X
- Desktop
- Intel Core i9-13900K
- Desktop
Microarchitecture
- AMD Ryzen 9 5900X
- Zen 3, Ryzen 5000 Series
- Intel Core i9-13900K
- Raptor Lake, 13th Gen Intel Core
Socket
- AMD Ryzen 9 5900X
- AM4
- Intel Core i9-13900K
- FCLGA1700
Socket Status
- AMD Ryzen 9 5900X
- End of Life
- Intel Core i9-13900K
- End of Life
Process Node
- AMD Ryzen 9 5900X
- 7 nm
- Intel Core i9-13900K
- 10 nm
Total Cores
- AMD Ryzen 9 5900X
- 12
- Intel Core i9-13900K
- 24Best
Performance Cores
- AMD Ryzen 9 5900X
- 12Best
- Intel Core i9-13900K
- 8
Efficiency Cores
- AMD Ryzen 9 5900X
- 0
- Intel Core i9-13900K
- 16Best
Total Threads
- AMD Ryzen 9 5900X
- 24
- Intel Core i9-13900K
- 32Best
SMT Enabled
- AMD Ryzen 9 5900X
- Yes
- Intel Core i9-13900K
- Yes
P-Core Base Clock
- AMD Ryzen 9 5900X
- 3.7 GHz
- Intel Core i9-13900K
- 3 GHz
P-Core Boost Clock
- AMD Ryzen 9 5900X
- 4.8 GHz
- Intel Core i9-13900K
- 5.4 GHz
Unlocked Multiplier
- AMD Ryzen 9 5900X
- Yes
- Intel Core i9-13900K
- Yes
L2 Cache
- AMD Ryzen 9 5900X
- 6 MB-81%
- Intel Core i9-13900K
- 32 MBBest
L3 Cache
- AMD Ryzen 9 5900X
- 64 MBBest
- Intel Core i9-13900K
- 36 MB-44%
3D Stacked Cache
- AMD Ryzen 9 5900X
- No
- Intel Core i9-13900K
- No
Base Power
- AMD Ryzen 9 5900X
- 105 W
- Intel Core i9-13900K
- 125 W
Max Turbo Power
- AMD Ryzen 9 5900X
- 142 W
- Intel Core i9-13900K
- 253 W
Memory Type
- AMD Ryzen 9 5900X
- DDR4
- Intel Core i9-13900K
- DDR5 or DDR4Best
Max Memory Speed
- AMD Ryzen 9 5900X
- 3200 MT/s
- Intel Core i9-13900K
- 5600 MT/sBest
Memory Channels
- AMD Ryzen 9 5900X
- 2
- Intel Core i9-13900K
- 2
Max Memory Capacity
- AMD Ryzen 9 5900X
- 128 GB
- Intel Core i9-13900K
- 192 GBBest
ECC Support
- AMD Ryzen 9 5900X
- Yes
- Intel Core i9-13900K
- Yes
Integrated Graphics
- AMD Ryzen 9 5900X
- No
- Intel Core i9-13900K
- Yes
Copilot Plus Certified
- AMD Ryzen 9 5900X
- No
- Intel Core i9-13900K
- No
PCIe Generation
- AMD Ryzen 9 5900X
- PCIe 4.0
- Intel Core i9-13900K
- PCIe 5.0
PCIe Lanes
- AMD Ryzen 9 5900X
- 24
- Intel Core i9-13900K
- 20-17%
Launch MSRP
- AMD Ryzen 9 5900X
- $549
- Intel Core i9-13900K
- $589
Retail Availability
- AMD Ryzen 9 5900X
- Boxed Retail
- Intel Core i9-13900K
- Boxed Retail
Which one should you pick?
Choose 5900X if you want the higher L3 cache (64 MB vs 36 MB), the higher memory channels (2 vs 2) and the higher PCIe lanes (24 vs 20).
Choose 13900K if you want the higher L2 cache (32 MB vs 6 MB).
Price comparison
| Retailer | AMD Ryzen 9 5900X | Intel Core i9-13900K |
|---|---|---|
| Amazon | $549.00 View on Amazon | $589.00 View on Amazon |
| Newegg | View on Newegg |
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
Intel Core i9-13900K
8.3 / 10 Expert Rating
The Intel Core i9-13900K is still a powerful 24-core desktop chip, now largely matched by its cheaper 14th-gen successors.




