INTEL

Intel Core i9-9900K

Intel processor specifications and benchmark scores

8
Cores
16
Threads
5
GHz Boost
95W
TDP
🔓Unlocked 🖥️Integrated GPU

Intel Core i9-9900K Specifications

⚙️

Core i9-9900K Core Configuration

Processing cores and threading

The Intel Core i9-9900K features 8 physical cores and 16 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
8
Threads
16
SMP CPUs
1
⏱️

i9-9900K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i9-9900K 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 i9-9900K by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.6 GHz
Boost Clock
5 GHz
All-Core Turbo
4.7 GHz
Multiplier
36x 🔓
💾

Intel's Core i9-9900K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i9-9900K 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 i9-9900K's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
16 MB (shared)
🏗️

Coffee Lake Architecture & Process

Manufacturing and design details

The Intel Core i9-9900K is built on Intel's 14 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 i9-9900K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Coffee Lake
Codename
Coffee Lake-R
Process Node
14 nm
Foundry
Intel
Die Size
180.3 mm²
Generation
Core i9 (Coffee Lake Refresh)
🔢

Coffee Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i9-9900K 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
SSE4.1
SSE4.2
AVX
AVX2
FMA3
AES-NI
F16C
BMI1
BMI2
Intel 64
VT-x
VT-d
🔌

i9-9900K Power & Thermal

TDP and power specifications

The Intel Core i9-9900K has a TDP (Thermal Design Power) of 95W, 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
95W
PL1 (Base Power)
95 W
PL2 (Turbo Power)
119 W
Tj Max
100°C
🔧

Intel Socket 1151 Platform & Socket

Compatibility information

The Core i9-9900K uses the Intel Socket 1151 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 1151
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-LGA14C
DDR5

Intel Socket 1151 Memory Support

RAM compatibility and speeds

Memory support specifications for the i9-9900K 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 i9-9900K 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
Memory Bus
Dual-channel
Memory Bandwidth
42.7 GB/s
🖥️

Intel's Core i9-9900K Integrated Graphics

Built-in GPU specifications

The Intel Core i9-9900K 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 i9-9900K 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 630
Graphics Model
UHD Graphics 630
📦

Core i9-9900K Product Information

Release and pricing details

The Intel Core i9-9900K 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 i9-9900K by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Oct 2018
Launch Price
$488
Market
Desktop
Status
End-of-life
Part Number
SRG19SRELS

Core i9-9900K Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i9-9900K performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #566 of 1788
1,555
10%
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 i9-9900K 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 #565 of 1245
219
10%
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 i9-9900K.

cinebench_cinebench_r20_multicore #566 of 1788
6,480
10%
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 i9-9900K.

cinebench_cinebench_r20_singlecore #566 of 1784
914
10%
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 i9-9900K after thermal limits kick in.

cinebench_cinebench_r23_multicore #566 of 1788
15,429
10%
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 i9-9900K maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #565 of 1788
2,178
10%
Max: 20,979
Compare with other CPUs

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i9-9900K across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance.

geekbench_multicore #170 of 711
8,050
36%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i9-9900K can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use.

geekbench_singlecore #197 of 711
1,702
50%
Max: 3,401
Compare with other CPUs

passmark_data_compressionSource

Data compression measures how fast Intel Core i9-9900K can compress and decompress files. This is important for archiving, backup software, and file transfer applications.

passmark_data_compression #283 of 528
283,506
5%
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 i9-9900K 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 #462 of 528
6,430
2%
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 i9-9900K performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads.

passmark_extended_instructions #287 of 528
18,965
5%
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 i9-9900K 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 #439 of 528
47
2%
Max: 2,422

passmark_floating_point_mathSource

Floating point math measures how Intel Core i9-9900K handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations.

passmark_floating_point_math #356 of 528
41,036
4%
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 i9-9900K 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 #348 of 528
66,134
4%
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 i9-9900K 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 #380 of 528
18,153
10%
Max: 174,825
Compare with other CPUs

🏆 Top 5 Performers

passmark_physicsSource

Physics tests how Intel Core i9-9900K handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements.

passmark_physics #391 of 528
934
3%
Max: 27,806

passmark_random_string_sortingSource

Random string sorting measures how fast Intel Core i9-9900K can organize text data. This is important for database operations, search indexing, and data processing applications.

passmark_random_string_sorting #224 of 528
36,238
6%
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 i9-9900K 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 #394 of 528
2,919
57%
Max: 5,097
Compare with other CPUs

passmark_singlethreadSource

PassMark single-thread measures per-core performance of Intel Core i9-9900K 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 #394 of 528
2,919
57%
Max: 5,097
Compare with other CPUs

About Intel Core i9-9900K

The Intel Core i9-9900K, an 8-core, 16-thread processor built on Intel's 14nm process, represented a significant leap in mainstream desktop core count upon its release. Its configuration provided a substantial advantage in heavily-threaded applications, effectively doubling the thread count of its predecessor, the i7-8700K, within the same Socket 1151. This core and thread layout allowed the chip to excel in scenarios demanding high parallel throughput, from video rendering to scientific computation. The shared 16 MB of L3 cache played a crucial role in feeding data efficiently to all cores, minimizing latency during complex tasks. Benchmarks like its PassMark Integer Math score of 66,134 points clearly demonstrate the raw computational power enabled by this design. For users seeking maximum multithreaded performance in a mainstream platform at the time, this Coffee Lake Refresh CPU was a definitive choice.

Clock speeds were a major highlight of this flagship processor, with a 3.6 GHz base clock and a potent Turbo Boost frequency reaching up to 5.0 GHz on a single core. This combination of high core count and exceptional single-core turbo performance made the i9-9900K exceptionally versatile. It could handle lightly-threaded tasks like gaming with exceptional agility, thanks to the high frequency, while also managing demanding professional workloads with its ample cores. The floating-point math performance, evidenced by a PassMark score of 41,036 points, benefited greatly from these aggressive clock speeds. However, achieving and sustaining the highest turbo frequencies was highly dependent on thermal conditions and motherboard power delivery. This meant that robust cooling was not optional but essential to fully leverage the potential of this unlocked processor.

Power consumption and thermal output were critical considerations for the i9-9900K, with its official 95W TDP often seen as an optimistic baseline under full load. In practice, a fully-loaded CPU could draw significantly more power, especially when all cores were boosted, demanding high-quality power supplies and cooling solutions. The thermal design power rating proved more representative of its power draw under base clock conditions rather than its peak performance state. This power characteristic influenced its ideal workloads, which included:

  1. High-end gaming and streaming, where its high single-thread speed and ample threads excelled.
  2. Content creation tasks like 4K video editing and 3D rendering, leveraging all 16 threads.
  3. Software development and engineering simulations, benefiting from the strong mix of integer and floating-point performance.
The processor's memory subsystem, supporting dual-channel DDR4, provided ample bandwidth for these demanding applications, though it was not as expansive as HEDT platforms.

In summary, the performance analysis of this Coffee Lake Refresh flagship reveals a processor engineered for enthusiasts who refused to compromise. Its benchmark results, such as the 283,506 points in data compression and 36,238 points in random string sorting, underscore its proficiency across a wide range of tests. The Intel chip successfully bridged the gap between mainstream gaming performance and professional-grade multithreaded throughput. While its power characteristics required careful system planning, the delivered performance was unmatched in its socket class at launch. For years following its release, the Core i9-9900K remained a relevant and powerful option, a testament to its balanced and high-performing design.

The AMD Equivalent of Core i9-9900K

Looking for a similar processor from AMD? The AMD Ryzen 9 3900X offers comparable performance and features in the AMD lineup.

AMD Ryzen 9 3900X

AMD • 12 Cores

View Specs Compare

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