INTEL

Intel Core i5-8600K

Intel processor specifications and benchmark scores

6
Cores
6
Threads
4.3
GHz Boost
95W
TDP
🔓Unlocked 🖥️Integrated GPU

Intel Core i5-8600K Specifications

⚙️

Core i5-8600K Core Configuration

Processing cores and threading

The Intel Core i5-8600K features 6 physical cores and 6 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
6
Threads
6
SMP CPUs
1
⏱️

i5-8600K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-8600K 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 i5-8600K by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.6 GHz
Boost Clock
4.3 GHz
Multiplier
36x 🔓
💾

Intel's Core i5-8600K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-8600K 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 i5-8600K'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
9 MB (shared)
🏗️

Coffee Lake Architecture & Process

Manufacturing and design details

The Intel Core i5-8600K 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 i5-8600K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Coffee Lake
Codename
Coffee Lake
Process Node
14 nm
Foundry
Intel
Generation
Core i5 (Coffee Lake)
🔢

Coffee Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i5-8600K 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
🔌

i5-8600K Power & Thermal

TDP and power specifications

The Intel Core i5-8600K 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
Tj Max
100°C
🔧

Intel Socket 1151 Platform & Socket

Compatibility information

The Core i5-8600K 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
Chipsets
Intel 300 Series, Intel 100/200 Series*
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-LGA1151
DDR5

Intel Socket 1151 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-8600K 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 i5-8600K 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 i5-8600K Integrated Graphics

Built-in GPU specifications

The Intel Core i5-8600K 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 i5-8600K 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 i5-8600K Product Information

Release and pricing details

The Intel Core i5-8600K 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 i5-8600K by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Oct 2017
Launch Price
$257
Market
Desktop
Status
End-of-life
Part Number
SR3QU

Core i5-8600K 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 i5-8600K performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #843 of 1788
868
6%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core i5-8600K handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance. A higher single-core score means snappier system responsiveness in everyday use.

cinebench_cinebench_r15_singlecore #845 of 1245
122
6%
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 i5-8600K. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #844 of 1788
3,617
6%
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 i5-8600K. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #843 of 1784
510
6%
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 i5-8600K after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #844 of 1788
8,613
6%
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 i5-8600K maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #844 of 1788
1,215
6%
Max: 20,979
Compare with other CPUs

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i5-8600K across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance. Higher scores indicate better capability in multitasking and content creation.

geekbench_multicore #282 of 711
5,738
25%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i5-8600K can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use. Many applications still depend primarily on single-thread performance.

geekbench_singlecore #250 of 711
1,580
46%
Max: 3,401
Compare with other CPUs

About Intel Core i5-8600K

The Intel Core i5-8600K is a 14nm Coffee Lake processor that marked a pivotal shift for its generation by delivering six native cores to the mainstream desktop platform. Built on Intel's mature Socket 1151, it operates with a base clock of 3.60 GHz and boosts up to 4.30 GHz, providing the high-frequency responsiveness that gamers demand. With a 95W TDP and a 9MB shared L3 cache, the chip is engineered for both efficiency and snappy data access during intense gaming sessions. Its architecture focuses on raw throughput, making the Intel I5-8600K a standout choice for users prioritizing frame rates over hyper-threading. At its $257 launch price in late 2017, it disrupted the market by bringing previously premium core counts to a more accessible price point. In synthetic benchmarks, the Intel I5-8600K demonstrates formidable multi-core capabilities, posting an impressive 8,613 points in Cinebench R23 and 3,617 points in Cinebench R20. Its single-core performance remains highly competitive, achieving 1,215 points in Cinebench R23 and 1,580 points in Geekbench Single-Core, which directly translates to high frame rates in CPU-bound game scenarios. Geekbench Multicore scores of 5,738 further validate its strength in handling modern game engines and background tasks simultaneously. This data-driven performance profile confirms that the Intel I5-8600K holds its own against newer entrants, especially when pushed to its turbo limits. For players seeking a balance of multi-threaded productivity and pure gaming prowess, these figures provide a clear metric of its enduring value. Targeting the mid-to-high-end gaming market, the Intel I5-8600K was designed to be the definitive processor for enthusiasts who wanted elite performance without the premium cost of the Core i7 line. It excels in titles that favor strong single-threaded speeds while also providing enough cores to manage streaming and multitasking without stuttering. The unlocked multiplier is a key feature for this audience, allowing easy overclocking to push sustained clocks well beyond the 4.30 GHz turbo figure. As a result, the Intel I5-8600K became a go-to component for building a high-refresh-rate gaming rig that doesn't compromise on responsiveness. Its positioning makes it ideal for gamers who want to extract maximum performance per dollar through manual tuning. When considering an upgrade today, the Intel I5-8600K still delivers a solid gaming experience, but it lacks hyper-threading and faces stiff competition from newer architectures with higher IPC. If you are running a discrete GPU at 1080p and aiming for 144Hz+, this processor can still keep up, though modern AAA titles may push its six threads to their limit. Users experiencing frame drops in simulation-heavy games or while multitasking might find a platform upgrade necessary to fully utilize current graphics cards. However, for builders on a budget who can find the Intel I5-8600K on the used market, it remains a potent engine for a cost-effective, overclockable gaming setup. Its legacy is that of a true performance democratizer, bringing high-core-count gaming to the masses.

The AMD Equivalent of Core i5-8600K

Looking for a similar processor from AMD? The AMD Ryzen 5 2500U offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 2500U

AMD • 4 Cores

View Specs Compare

Popular Intel Core i5-8600K Comparisons

See how the Core i5-8600K stacks up against similar processors from the same generation and competing brands.

Compare Core i5-8600K with Other CPUs

Select another CPU to compare specifications and benchmarks side-by-side.

Browse CPUs