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AMD Ryzen 7 5800X 8-core, 16-thread unlocked vs Intel Core i7-8700K Desktop Processor 6 Cores up

Updated August 2026 — AMD Ryzen 7 5800X 8-core, 16-thread unlocked wins on performance and compatibility, Intel Core i7-8700K Desktop Processor 6 Cores up wins on price and cooling.

The AMD Ryzen 7 5800X outperforms the Intel Core i7-8700K in most scenarios, making it the better choice for high-performance tasks.

Why AMD Ryzen 7 5800X 8-core, 16-thread unlocked is better

Core Count

8 cores vs 6 cores

Performance

Superior performance in gaming and multitasking

Future Proofing

Supports PCIe 4.0

Why Intel Core i7-8700K Desktop Processor 6 Cores up is better

Price

Lower price at $185.37

Integrated Graphics

Includes Intel UHD Graphics 630

Compatibility

Compatible with Intel 300 series motherboards

Overall score

AMD Ryzen 7 5800X 8-core, 16-thread unlocked
88
Intel Core i7-8700K Desktop Processor 6 Cores up
76

Specifications

SpecAMD Ryzen 7 5800X 8-core, 16-thread unlockedIntel Core i7-8700K Desktop Processor 6 Cores up
Cores86
Threads1612
Max Boost4.7 GHz4.7 GHz
Cache36 MB12 MB
Integrated GPUNoYes
SocketAM4LGA1151

Dimension comparison

AMD Ryzen 7 5800X 8-core, 16-thread unlockedIntel Core i7-8700K Desktop Processor 6 Cores up

Introduction to the AMD Ryzen 7 5800X and Intel Core i7-8700K

In the world of desktop processors, both the AMD Ryzen 7 5800X and Intel Core i7-8700K stand out as powerful options for gamers and content creators alike. The AMD Ryzen 7 5800X is priced at $229.95, while the Intel Core i7-8700K comes in at a more budget-friendly $185.37. This price difference of about 17% may influence buyers considering their performance needs and budget constraints.

Performance Overview

When it comes to raw performance, the AMD Ryzen 7 5800X offers an edge with its 8 cores and 16 threads, allowing it to handle demanding tasks and multitasking with ease. In contrast, the Intel Core i7-8700K features 6 cores and 12 threads, which may limit its efficiency in high-demand scenarios. The Ryzen 7 5800X can achieve a maximum boost clock of 4.7 GHz, similar to the i7-8700K, but with additional cores, it provides superior processing capabilities for gaming and content creation.

Gaming Performance

The AMD Ryzen 7 5800X is touted as capable of delivering elite performance of over 100 FPS in popular games. This makes it an excellent choice for gamers looking for the best experience. Meanwhile, the Intel Core i7-8700K also supports impressive gaming performance, but the lack of additional cores may affect its performance in more demanding games or multitasking scenarios. If gaming is a primary concern, the Ryzen 7 5800X may be the better choice due to its higher core count and processing power.

Cooling Solutions

While both processors are unlocked for overclocking, the AMD Ryzen 7 5800X does not come with a cooler included, which means users should invest in a high-performance cooler for optimal operation. The Intel Core i7-8700K also requires adequate cooling, but it has a more straightforward installation for those using compatible Intel 300 series motherboards. Users need to consider the additional costs associated with cooling solutions when evaluating their overall budgets for either processor.

Compatibility and Support

The AMD Ryzen 7 5800X is designed for the advanced Socket AM4 platform and supports PCIe 4.0 on X570 and B550 motherboards, making it future-proof for upcoming technologies. On the other hand, the Intel Core i7-8700K is compatible only with motherboards based on Intel 300 series chipsets. This limitation may impact users looking to upgrade or expand their systems in the future, making the Ryzen 7 5800X a more flexible option for long-term use.

Integrated Graphics

The Intel Core i7-8700K comes with Intel UHD Graphics 630, which allows for basic graphical tasks without the need for a dedicated GPU. This feature can be beneficial for users who do not require intensive graphics performance. In contrast, the AMD Ryzen 7 5800X lacks integrated graphics, meaning users will need a dedicated graphics card to display visual content. For users planning to build a system with a dedicated GPU, this may not be an issue, but it's an important consideration for those on a tighter budget.

Price and Value

The AMD Ryzen 7 5800X is priced at $229.95, while the Intel Core i7-8700K is available for $185.37, making the Intel processor a more attractive option for budget-conscious buyers. However, the price difference may be justified by the Ryzen 7's superior performance, especially in demanding applications. Buyers should weigh the importance of performance against their budget, as the Ryzen 7 offers more value for those needing higher processing power.

Which should you buy?

Choosing between the AMD Ryzen 7 5800X and the Intel Core i7-8700K ultimately depends on your specific needs and budget. If you prioritize performance, especially for gaming and multitasking, the Ryzen 7 5800X is the clear winner with its higher core count and superior processing capabilities. However, if you're working with a tighter budget and require basic graphics capabilities, the Intel Core i7-8700K offers solid performance at a lower price. Assess your requirements carefully, as each processor has distinct advantages that cater to different user needs.