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Intel Core i9 Alder Lake i9-12900K BOX (BX8071512900K)

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Intel Core i9 Alder Lake i9-12900K BOX
Main
SeriesCore i9
Code nameAlder Lake
SocketIntel LGA 1700
Lithography10 nm
In boxBOX (no cooler)
Cores and Threads
Cores16 cores
Performance8 cores
Efficient8 cores
Threads24 threads
Multithreading
Speed
Performance-core Base3.2 GHz
Efficient-core Base2.4 GHz
TurboBoost / TurboCore5.2 GHz
Performance-core Max5.1 GHz
Efficient-core Max3.9 GHz
Cache
L2 cache14336 KB
L3 cache30 MB
Specs
IGPUHD Graphics 770
TDP125 W
Thermal Dissipation Max(TDP)241 W
InstructionSSE4.1, SSE4.2, AVX2
Free multiplier
PCI Express5.0
Max. operating temperature100 °С
Passmark CPU Mark41532 score(s)
Memory
Max. RAM128 GB
Max. DDR4 speed3200 MHz
Max. DDR5 speed4800 MHz
Channels2
Official Websiteark.intel.com
Added to E-Catalogoctober 2021
P/N
BX8071512900K

Hybrid architecture, which implies a combination of high-performance (Performance-cores) and energy-efficient (Efficient-core) cores. Support for DDR5 standard and PCI Express 5.0 interface.
Performance-cores are high-performance cores capable of simultaneously executing up to two computation threads. Efficient-core — energy-efficient cores do not support Hyper-Threading and are designed to handle background workloads.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Intel 2025 - new arrivals, bestsellers, and the most relevant models Intel.

Intel Core i9 Alder Lake configurations

Price for Intel Core i9 Alder Lake
Intel Core i9 Alder Lake i9-12900K BOXfrom $298.852 offers
Intel Core i9 Alder Lake i9-12900KF BOXfrom $269.001 offer
Intel Core i9 Alder Lake i9-12900KS BOXfrom $887.441 offer
Video reviews

The flagship of the Alder Lake family

Core i9-12900K contains 8 high-performance cores and 8 power-efficient cores, however, the total number of threads reaches 24 instead of 32, since 8 auxiliary cores do not support Hyper-Threading technology. As for the frequency characteristics, the main cores can be overclocked up to 5.2 GHz, while the speed of the auxiliary ones is limited to 3.9 GHz. Plus, the Core i9-12900K is equipped with 30 MB L3 cache + 14 MB L2 cache, supports 16 PCI-E 5.0 bus lines. Or with four PCI-E 4.0 lanes. In addition to everything, the processor can work both with the usual DDR4 memory and with the new DDR5.

Ryzen 9 5900X competitor

What did all these improvements give? In most synthetic benchmarks that focus on instantaneous multithreading, the Core i9-12900K is slightly ahead of the competing Ryzen 9 5900X and 5950X chips. The excess is from 5 to 15%. Although there are also reverse examples, when the Ryzen 9 5950X, on the contrary, goes ahead by the same 10 – 12%. In gaming benchmarks, Intel still managed to regain leadership - in FarCry 6, Forza Horizon and F1 2021, the Core i9-12900K processor always turns out to be 8-12% faster than the Ryzen 9 5950X competitor.

unhealthy appetite

But here it is important to make two clarifications. First, AMD Vermeer processors came out a year ago, so the comparison is not entirely correct. The real fight for the championship belt is scheduled for early 2022, when the new Ryzen 6000 chips will be released with the new 3D V-Cache, which promises the same 15% increase in pure power. The second important nuance is that Intel CPUs pay for their acceleration with increased power consumption. If the power consumption of the system with the Ryzen 9 5950X was 221 watts, then the Core i9-12900K requires a little more than 350 watts. The final 130 W is not the most beautiful reverse side of the coin, which calls into question the victory of the Core i9-12900K. After all, it needs a more powerful power supply, and a more serious cooling system.

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