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AMD Ryzen 9 9900X3D vs Intel Core i9-12900KF: Comparison

AMD Ryzen 9 9900X3D vs Intel Core i9-12900KF: the l3 cache difference

Start with l3 cache, because it is the widest measured gap between them: AMD Ryzen 9 9900X3D 128 MB against Intel Core i9-12900KF 30 MB, 77% in favour of AMD Ryzen 9 9900X3D. Tdp is not the same on both, 120 W on the AMD Ryzen 9 9900X3D versus 125 W on the Intel Core i9-12900KF. There is a split on integrated graphics as well, Yes on the AMD Ryzen 9 9900X3D versus No on the Intel Core i9-12900KF. There is a split on socket as well, AM5 on the AMD Ryzen 9 9900X3D versus FCLGA1700 on the Intel Core i9-12900KF.

Who each one is for

Buy the AMD Ryzen 9 9900X3D for high-refresh-rate gaming and flagship gaming builds, though it is the wrong buy for budget builds and non-gaming workstation loads. The Intel Core i9-12900KF suits enthusiast desktop gaming and overclocking with discrete GPU, though it is not the pick for systems without a discrete GPU 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 i9-12900KF (7.8/10): the Intel Core i9-12900KF is an unlocked, GPU-less chip aimed at enthusiasts already running a discrete graphics card.

What AMD Ryzen 9 9900X3D and Intel Core i9-12900KF have in common

The common ground is wider than the gap: total threads, form factor, market segment, smt enabled and unlocked multiplier are identical here. They match on 5 further specifications as well.

Frequently asked questions

Do the AMD Ryzen 9 9900X3D and Intel Core i9-12900KF differ on total cores?

Yes. Total Cores reads 12 on the AMD Ryzen 9 9900X3D versus 16 on the Intel Core i9-12900KF.

Is the Bundled Cooler the same on the AMD Ryzen 9 9900X3D and Intel Core i9-12900KF?

It is. Both are listed at None, so it is not a reason to pick one over the other.

Specs and benchmarks

  • Form Factor

    AMD Ryzen 9 9900X3D
    Desktop
    Intel Core i9-12900KF
    Desktop
  • Codename

    AMD Ryzen 9 9900X3D
    Granite Ridge
    Intel Core i9-12900KF
    Alder Lake
  • Release Year

    AMD Ryzen 9 9900X3D
    2025
    Intel Core i9-12900KF
    2021
  • TDP

    AMD Ryzen 9 9900X3D
    120 W
    Intel Core i9-12900KF
    125 W
  • iGPU

    AMD Ryzen 9 9900X3D
    AMD Radeon Graphics
    Intel Core i9-12900KF
    None
  • Market Segment

    AMD Ryzen 9 9900X3D
    Desktop
    Intel Core i9-12900KF
    Desktop
  • Microarchitecture

    AMD Ryzen 9 9900X3D
    Zen 5 (9000 series)
    Intel Core i9-12900KF
    Alder Lake
  • Socket

    AMD Ryzen 9 9900X3D
    AM5
    Intel Core i9-12900KF
    FCLGA1700
  • Socket Status

    AMD Ryzen 9 9900X3D
    Current
    Intel Core i9-12900KF
    Mature
  • Process Node

    AMD Ryzen 9 9900X3D
    4 nm
    Intel Core i9-12900KF
    10 nm
  • Total Cores

    AMD Ryzen 9 9900X3D
    12
    Intel Core i9-12900KF
    16Best
  • Performance Cores

    AMD Ryzen 9 9900X3D
    12Best
    Intel Core i9-12900KF
    8
  • Efficiency Cores

    AMD Ryzen 9 9900X3D
    0
    Intel Core i9-12900KF
    8Best
  • Total Threads

    AMD Ryzen 9 9900X3D
    24
    Intel Core i9-12900KF
    24
  • SMT Enabled

    AMD Ryzen 9 9900X3D
    Yes
    Intel Core i9-12900KF
    Yes
  • P-Core Base Clock

    AMD Ryzen 9 9900X3D
    4.4 GHz
    Intel Core i9-12900KF
    3.2 GHz
  • P-Core Boost Clock

    AMD Ryzen 9 9900X3D
    5.5 GHz
    Intel Core i9-12900KF
    5.1 GHz
  • Unlocked Multiplier

    AMD Ryzen 9 9900X3D
    Yes
    Intel Core i9-12900KF
    Yes
  • L2 Cache

    AMD Ryzen 9 9900X3D
    12 MB-14%
    Intel Core i9-12900KF
    14 MBBest
  • L3 Cache

    AMD Ryzen 9 9900X3D
    128 MBBest
    Intel Core i9-12900KF
    30 MB-77%
  • Base Power

    AMD Ryzen 9 9900X3D
    120 W
    Intel Core i9-12900KF
    125 W
  • Max Turbo Power

    AMD Ryzen 9 9900X3D
    162 W
    Intel Core i9-12900KF
    241 W
  • Bundled Cooler

    AMD Ryzen 9 9900X3D
    None
    Intel Core i9-12900KF
    None
  • Memory Type

    AMD Ryzen 9 9900X3D
    DDR5
    Intel Core i9-12900KF
    DDR5 or DDR4
  • Max Memory Speed

    AMD Ryzen 9 9900X3D
    5600 MT/sBest
    Intel Core i9-12900KF
    4800 MT/s
  • Memory Channels

    AMD Ryzen 9 9900X3D
    2
    Intel Core i9-12900KF
    2
  • Max Memory Capacity

    AMD Ryzen 9 9900X3D
    256 GBBest
    Intel Core i9-12900KF
    128 GB
  • Integrated Graphics

    AMD Ryzen 9 9900X3D
    Yes
    Intel Core i9-12900KF
    No
  • Copilot Plus Certified

    AMD Ryzen 9 9900X3D
    No
    Intel Core i9-12900KF
    No
  • PCIe Generation

    AMD Ryzen 9 9900X3D
    PCIe 5.0
    Intel Core i9-12900KF
    PCIe 5.0
  • PCIe Lanes

    AMD Ryzen 9 9900X3D
    24
    Intel Core i9-12900KF
    20-17%
  • Retail Availability

    AMD Ryzen 9 9900X3D
    Boxed Retail
    Intel Core i9-12900KF
    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 12900KF if you want the higher L2 cache (14 MB vs 12 MB).

    Price comparison

    RetailerAMD Ryzen 9 9900X3DIntel Core i9-12900KF
    AmazonView on Amazon

    $564.00

    View on Amazon
    NeweggView on NeweggView on Newegg
    Best BuyView on Best Buy
    B&H PhotoView 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 i9-12900KF

    7.8 / 10 Expert Rating

    The Intel Core i9-12900KF is an unlocked, GPU-less chip aimed at enthusiasts already running a discrete graphics card.

    More comparisons in Processors (CPUs)