AMD Ryzen™ 5 8400F vs Intel Core i7-8700K Desktop Processor 6 Cores up
Updated August 2026 — AMD Ryzen™ 5 8400F wins on price and upgrade, Intel Core i7-8700K Desktop Processor 6 Cores up wins on graphics and compatibility.
The AMD Ryzen™ 5 8400F offers better value and future-proofing, while the Intel Core i7-8700K provides integrated graphics and compatibility with Intel's ecosystem.
Why AMD Ryzen™ 5 8400F is better
Price
AMD Ryzen™ 5 8400F is $40 cheaper.
Architecture
Supports DDR5 memory for future upgrades.
Overclocking
Superior overclocking potential.
Why Intel Core i7-8700K Desktop Processor 6 Cores up is better
Integrated Graphics
Intel Core i7-8700K has built-in graphics.
Compatibility
Works with Intel 300 Series chipsets.
Turbo Frequency
Both reach 4.7 GHz, but Intel has a higher base clock.
Overall score
Specifications
| Spec | AMD Ryzen™ 5 8400F | Intel Core i7-8700K Desktop Processor 6 Cores up |
|---|---|---|
| Cores | 6 | 6 |
| Threads | 12 | 12 |
| Max Boost | 4.7 GHz | 4.7 GHz |
| Base Clock | 3.90 GHz | 3.70 GHz |
| Memory Type | DDR5 | DDR4 |
Dimension comparison
Overview of AMD Ryzen™ 5 8400F and Intel Core i7-8700K
The AMD Ryzen™ 5 8400F is priced at $145.00, making it about 22% cheaper than the Intel Core i7-8700K, which retails for $185.37. Both processors offer 6 cores and 12 threads, designed to cater to both gaming and productivity needs. The AMD Ryzen™ 5 8400F boasts advanced “Zen 4” architecture, while the Intel Core i7-8700K provides a strong gaming experience with support for Intel Optane Memory. This comparison will delve into various aspects of each processor to help potential buyers make an informed decision.
Performance Comparison
Both processors provide excellent performance, but the AMD Ryzen™ 5 8400F leverages its 4.7 GHz Max Boost for superior overclocking capabilities. This feature is particularly beneficial for gamers who want to maximize their frames per second. On the other hand, the Intel Core i7-8700K also reaches 4.7 GHz but operates at a base frequency of 3.70 GHz. While both processors deliver comparable peak performance, the AMD offering shines in its overclocking potential, allowing users to push their systems further.
Gaming Experience
For gamers, both the AMD Ryzen™ 5 8400F and the Intel Core i7-8700K promise outstanding experiences. The Ryzen processor is marketed as the starting point for PC gaming, suggesting a design philosophy rooted in gaming performance. Meanwhile, the Intel Core i7-8700K emphasizes not just gameplay but also live-streaming and video editing, catering to a broader gaming community. With the same number of cores and threads, both processors can handle modern gaming, but the Ryzen’s efficient architecture may offer a slight edge in specific scenarios.
Architecture and Technology
The AMD Ryzen™ 5 8400F features the advanced AMD “Zen 4” architecture, which supports DDR5 memory, making it future-proof for upcoming technologies. In contrast, the Intel Core i7-8700K utilizes older DDR4 SDRAM. This difference in supported memory types could influence long-term performance and upgrade paths, especially as DDR5 becomes more prevalent in future builds. Buyers looking for longevity and future upgrades might find the Ryzen processor more appealing due to its modern architectural design.
Graphics Capabilities
The Intel Core i7-8700K comes equipped with Intel UHD Graphics 630, providing built-in graphics capabilities that can be beneficial for non-gaming tasks or as a backup option. In contrast, the AMD Ryzen™ 5 8400F does not specify integrated graphics. This lack of integrated graphics means that users of the Ryzen processor will need to invest in a dedicated graphics card for any graphical tasks. For those who plan to use their CPU for gaming, the absence of integrated graphics might not be a significant drawback, but it is a factor to consider.
Compatibility
Compatibility is essential when choosing a processor. The AMD Ryzen™ 5 8400F is designed for the state-of-the-art Socket AM5 platform, which ensures upgradability for years to come. Conversely, the Intel Core i7-8700K is compatible only with motherboards based on Intel 300 Series chipsets. This limitation might restrict users' options for future upgrades. For builders who plan to evolve their systems over time, the Ryzen processor offers a more flexible choice.
Pricing and Value
At $145.00, the AMD Ryzen™ 5 8400F presents a compelling value, especially when compared to the Intel Core i7-8700K, which costs $185.37. This price difference of about $40 could be significant for budget-conscious consumers. Both processors provide similar core counts and thread capabilities, but the lower price of the Ryzen makes it an attractive option for those looking to build a gaming or productivity rig without breaking the bank.
Customer Satisfaction
While specific sales rankings for these processors aren't provided, both the AMD Ryzen™ 5 8400F and Intel Core i7-8700K have garnered positive reviews in the market. Users often praise the performance and reliability of both brands. However, the AMD Ryzen™ 5 8400F, being more affordable, may appeal to a wider audience, particularly first-time builders or those upgrading from older systems.
Which should you buy?
Deciding between the AMD Ryzen™ 5 8400F and the Intel Core i7-8700K ultimately comes down to individual needs and budget considerations. If price is a significant factor, the Ryzen offers robust performance at about 22% less cost than the Intel option. However, if integrated graphics and compatibility with Intel's ecosystem are essential for you, the i7-8700K might warrant the extra investment. For a balance of performance and future-proofing, the AMD Ryzen™ 5 8400F appears to be the stronger contender.