INTEL

Intel Core i9-12900K

Intel processor specifications and benchmark scores

16
Cores
24
Threads
5.2
GHz Boost
125W
TDP
🔓Unlocked 🖥️Integrated GPU 🛡️ECC Memory

Intel Core i9-12900K Specifications

⚙️

Core i9-12900K Core Configuration

Processing cores and threading

The Intel Core i9-12900K features 16 physical cores and 24 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
16
Threads
24
Hybrid Cores
P-Cores: 8 E-Cores: 8
SMP CPUs
1
⏱️

i9-12900K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i9-12900K benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i9-12900K by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.2 GHz
Boost Clock
5.2 GHz
E-Core Frequency
2.4 GHz up to 3.9 GHz
Multiplier
32x 🔓
💾

Intel's Core i9-12900K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i9-12900K processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i9-12900K's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
80 KB (per core)
L2 Cache
1.25 MB (per core)
L3 Cache
30 MB (shared)
🏗️

Alder Lake Architecture & Process

Manufacturing and design details

The Intel Core i9-12900K is built on Intel's 10 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i9-12900K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Alder Lake
Codename
Alder Lake-S
Process Node
10 nm
Foundry
Intel
Die Size
215 mm²
Generation
Core i9 (Alder Lake-S)
🔢

Alder Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i9-12900K by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
FMA3
SHA
AES-NI
F16C
BMI1
BMI2
Intel 64
VT-x
VT-d
TXT
TSX
🔌

i9-12900K Power & Thermal

TDP and power specifications

The Intel Core i9-12900K has a TDP (Thermal Design Power) of 125W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
125W
PL1 (Base Power)
241 W
PL2 (Turbo Power)
241 W
Tj Max
100°C
🔧

Intel Socket 1700 Platform & Socket

Compatibility information

The Core i9-12900K uses the Intel Socket 1700 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1700
Chipsets
Z690, W680, H670, Q670, B660, H610, Z790, H770, B760
PCIe
Gen 5, 16 Lanes(CPU only)
Package
FC-LGA16A
DDR5

Intel Socket 1700 Memory Support

RAM compatibility and speeds

Memory support specifications for the i9-12900K define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i9-12900K determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR4, DDR5
Memory Bus
Dual-channel
Memory Bandwidth
76.8 GB/s
DDR4 Speed
3200 MT/s
ECC Memory
Supported
🖥️

Intel's Core i9-12900K Integrated Graphics

Built-in GPU specifications

The Intel Core i9-12900K includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the i9-12900K provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
UHD Graphics 770
Graphics Model
UHD Graphics 770
📦

Core i9-12900K Product Information

Release and pricing details

The Intel Core i9-12900K is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i9-12900K by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Nov 2021
Launch Price
$599
Market
Desktop
Status
Active
Part Number
SRL4H

Core i9-12900K Benchmark Scores

3dmark_16_threadsSource

3DMark 16-thread tests Intel Core i9-12900K with heavily-threaded game workloads. This shows performance in games that fully utilize high-core-count CPUs for maximum parallelization.

3dmark_16_threads #28 of 166
9,912
61%
Max: 16,374

3dmark_2_threadsSource

3DMark 2-thread tests Intel Core i9-12900K performance with dual-threaded game workloads. This shows capability in games that use limited parallelization typical of older titles. Some game engines still primarily utilize only two threads for core logic.

3dmark_2_threads #24 of 166
2,120
83%
Max: 2,549

3dmark_4_threadsSource

3DMark 4-thread tests Intel Core i9-12900K with quad-threaded game workloads. This shows performance in games optimized for four cores, which represents many current titles.

3dmark_4_threads #22 of 166
4,145
84%
Max: 4,963

3dmark_8_threadsSource

3DMark 8-thread tests Intel Core i9-12900K with octa-threaded game workloads. This shows performance in well-optimized modern games that leverage eight threads effectively. AAA titles increasingly scale to eight or more threads.

3dmark_8_threads #17 of 166
7,596
82%
Max: 9,298

3dmark_max_threadsSource

3DMark max threads tests Intel Core i9-12900K using all available threads for game workloads. This shows the maximum parallel gaming performance capability of the processor. This reveals the ceiling of what games could achieve with perfect thread scaling.

3dmark_max_threads #25 of 166
11,620
63%
Max: 18,441

3dmark_single_threadSource

3DMark CPU single-thread tests how Intel Core i9-12900K handles game physics and AI calculations on one core. This is critical for games that rely on single-thread performance. Many games still bottleneck on single-core speed despite having multiple threads.

3dmark_single_thread #27 of 166
1,073
83%
Max: 1,293

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i9-12900K performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #178 of 1788
3,531
24%
Max: 14,978
Compare with other CPUs

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core i9-12900K handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.

cinebench_cinebench_r15_singlecore #178 of 1245
498
24%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i9-12900K.

cinebench_cinebench_r20_multicore #178 of 1788
14,713
24%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i9-12900K.

cinebench_cinebench_r20_singlecore #178 of 1784
2,076
24%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i9-12900K after thermal limits kick in.

cinebench_cinebench_r23_multicore #178 of 1788
35,031
24%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i9-12900K maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #178 of 1788
4,945
24%
Max: 20,979
Compare with other CPUs

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i9-12900K across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance.

geekbench_multicore #42 of 711
15,525
69%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i9-12900K can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use.

geekbench_singlecore #39 of 711
2,640
78%
Max: 3,401

passmark_data_compressionSource

Data compression measures how fast Intel Core i9-12900K can compress and decompress files. This is important for archiving, backup software, and file transfer applications.

passmark_data_compression #118 of 528
537,341
10%
Max: 5,427,555
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
5,427,555
#2 AMD EPYC 9845
4,680,013
#3 AMD EPYC 9755
4,517,407
#4 AMD EPYC 9745
3,929,890

passmark_data_encryptionSource

Data encryption tests how fast Intel Core i9-12900K can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher. Disk encryption, secure browsing, and VPN performance all benefit from faster encryption.

passmark_data_encryption #128 of 528
29,579
9%
Max: 316,606
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
316,606
#2 AMD EPYC 9845
296,808
#3 AMD EPYC 9755
284,927
#4 AMD EPYC 9754
231,891
#5 AMD EPYC 9745
229,447

passmark_extended_instructionsSource

Extended instructions tests Intel Core i9-12900K performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.

passmark_extended_instructions #126 of 528
33,682
9%
Max: 392,159
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
392,159
#2 AMD EPYC 9845
314,798
#3 AMD EPYC 9755
303,321
#4 AMD EPYC 9745
280,477

passmark_find_prime_numbersSource

Find prime numbers tests Intel Core i9-12900K ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks. The test reveals raw mathematical processing capability.

passmark_find_prime_numbers #187 of 528
147
6%
Max: 2,422
Compare with other CPUs

passmark_floating_point_mathSource

Floating point math measures how Intel Core i9-12900K handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.

passmark_floating_point_math #113 of 528
105,471
9%
Max: 1,141,430
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,141,430
#2 AMD EPYC 9845
978,377
#3 AMD EPYC 9755
922,900
#4 AMD EPYC 9745
761,219
#5 AMD EPYC 9655P
710,260

passmark_integer_mathSource

Integer math tests how fast Intel Core i9-12900K processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations. Higher scores benefit applications that work primarily with non-decimal numbers.

passmark_integer_math #124 of 528
139,090
8%
Max: 1,806,439
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
1,806,439
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests Intel Core i9-12900K across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability. Results can be compared against millions of submissions in the PassMark database.

passmark_multithread #121 of 528
41,213
24%
Max: 174,825
Compare with other CPUs

passmark_physicsSource

Physics tests how Intel Core i9-12900K handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.

passmark_physics #152 of 528
2,219
8%
Max: 27,806
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9755
27,806
#2 AMD EPYC 9655P
26,810
#3 AMD EPYC 9655
25,958
#4 AMD EPYC 9684X
24,686
#5 AMD EPYC 9575F
22,021

passmark_random_string_sortingSource

Random string sorting measures how fast Intel Core i9-12900K can organize text data. This is important for database operations, search indexing, and data processing applications.

passmark_random_string_sorting #128 of 528
57,094
9%
Max: 609,901
Compare with other CPUs

🏆 Top 5 Performers

#1 AMD EPYC 9965
609,901
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
455,310

passmark_single_threadSource

PassMark single-thread measures per-core performance of Intel Core i9-12900K across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.

passmark_single_thread #86 of 528
4,136
81%
Max: 5,097

passmark_singlethreadSource

PassMark single-thread measures per-core performance of Intel Core i9-12900K across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use. Many legacy applications and games still depend heavily on single-thread speed.

passmark_singlethread #86 of 528
4,136
81%
Max: 5,097

About Intel Core i9-12900K

The Intel Core i9-12900K introduced a revolutionary hybrid architecture that combines eight Performance-cores with eight Efficient-cores to maximize gaming and productivity throughput. This design allows the processor to prioritize high-frequency threads on the P-cores up to a 5.20 GHz turbo clock, while background tasks are offloaded to the E-cores. With a 125W TDP and a 10 nm process, the i9-12900K pushes power limits aggressively to sustain its 3.20 GHz base clock under heavy multithreaded loads. The 30 MB shared L3 cache ensures rapid data access for large game assets and complex integer math, reflected in PassMark scores like 139,090 points for integer math and 105,471 for floating point. In synthetic benchmarks, the chip delivers 537,341 compression points and 57,094 string sorting points, demonstrating strong single-thread dominance and versatile compute capability. For gamers, the i9-12900K leverages its high boost frequencies to push frame rates in CPU-bound scenarios, while the hybrid layout keeps streaming and background applications smooth. As a flagship Alder Lake-S processor, the i9-12900K excels in demanding workloads like real-time rendering, physics simulation, and high-refresh gaming, provided cooling and power delivery are robust.

The AMD Equivalent of Core i9-12900K

Looking for a similar processor from AMD? The AMD Ryzen 9 PRO 5945 offers comparable performance and features in the AMD lineup.

AMD Ryzen 9 PRO 5945

AMD • 12 Cores

View Specs Compare

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