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AMD Ryzen™ 9 9900X 12-Core, 24-Thread Unlocked vs Intel Core i7-8700K Desktop Processor 6 Cores up

Updated August 2026 — AMD Ryzen™ 9 9900X 12-Core, 24-Thread Unlocked wins on performance and future-proof, Intel Core i7-8700K Desktop Processor 6 Cores up wins on price and cooling.

The AMD Ryzen™ 9 9900X offers superior performance and future-proofing, while the Intel Core i7-8700K is a more budget-friendly option. Choose based on your performance needs and budget.

Why AMD Ryzen™ 9 9900X 12-Core, 24-Thread Unlocked is better

Performance

Higher core and thread count

Gaming

Ultra-fast 100+ FPS performance

Future-proofing

Supports latest DDR5 and PCIe 5.0

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

Price

Significantly cheaper

Cooling

Includes a cooler

Simplicity

Easier setup for casual users

Overall score

AMD Ryzen™ 9 9900X 12-Core, 24-Thread Unlocked
90
Intel Core i7-8700K Desktop Processor 6 Cores up
70

Specifications

SpecAMD Ryzen™ 9 9900X 12-Core, 24-Thread UnlockedIntel Core i7-8700K Desktop Processor 6 Cores up
Cores126
Threads2412
Max Boost5.6 GHz4.7 GHz
Cache76 MB12 MB
Memory TypeDDR5DDR4

Dimension comparison

AMD Ryzen™ 9 9900X 12-Core, 24-Thread UnlockedIntel Core i7-8700K Desktop Processor 6 Cores up

Introduction to the Processors

When it comes to high-performance CPUs, the AMD Ryzen™ 9 9900X and the Intel Core i7-8700K stand out as two compelling options. The AMD Ryzen 9 9900X is priced at $392.59, while the Intel Core i7-8700K is significantly cheaper at $185.37, making it about 53% less expensive. This comparison will delve into their performance, architecture, gaming capabilities, and overall value to help you decide which is the better option for your needs.

Performance Comparison

The AMD Ryzen™ 9 9900X boasts 12 cores and 24 threads, providing exceptional multitasking capabilities and high performance for demanding applications. With a max boost frequency of 5.6 GHz, it is built on the advanced “Zen 5” architecture, which allows for overclocking. In contrast, the Intel Core i7-8700K features 6 cores and 12 threads, with a max turbo frequency of 4.7 GHz. While the Ryzen 9 9900X excels in raw performance due to its higher core count, the i7-8700K still delivers solid performance for gaming and general use, albeit at a lower capacity.

Gaming Capabilities

Gamers will appreciate the AMD Ryzen™ 9 9900X for its ability to deliver ultra-fast 100+ FPS performance in the most popular games. This makes it an ideal choice for those who seek top-tier gaming experiences. The Intel Core i7-8700K, while also a capable processor, is better suited for a more budget-conscious gamer. Although it supports Intel UHD Graphics 630, it is not specifically designed for high-end gaming. The Ryzen's superior gaming performance could justify its higher price for serious gamers.

Architectural Differences

The AMD Ryzen™ 9 9900X is built on the new “Zen 5” architecture, which enhances efficiency and performance. It supports the latest DDR5-5600 memory and offers PCIe 5.0 capabilities, making it a future-proof choice for gamers and creators looking to push the limits of their systems. On the other hand, the Intel Core i7-8700K is based on an older architecture designed for the Intel 300 Series Chipsets and supports DDR4 memory. This architectural difference may affect future upgrades and overall system longevity.

Overclocking Potential

Overclocking enthusiasts will find the AMD Ryzen™ 9 9900X more appealing, as it is fully unlocked for overclocking, allowing users to push performance limits. The i7-8700K is also unlocked but may not achieve the same performance gains due to its lower core count. For those looking to maximize the potential of their CPU, the Ryzen 9 offers a more robust platform for overclocking.

Cooling Requirements

The AMD Ryzen™ 9 9900X does not include a cooler in the package, which means buyers will need to invest in an aftermarket cooling solution to ensure optimal performance, especially if overclocking. In contrast, the Intel Core i7-8700K generally comes with a cooler, making it easier to set up right out of the box. This consideration might be crucial for users who prefer a straightforward installation process without additional expenses.

Value for Money

At $392.59, the AMD Ryzen™ 9 9900X represents a significant investment, particularly when compared to the Intel Core i7-8700K, which is priced at $185.37. This price difference of about $207.22 may lead some users to question whether the added performance and capabilities of the Ryzen justify the cost. For casual users or those on a tighter budget, the i7-8700K offers a respectable performance that aligns better with its price point.

Community and Ecosystem

Both processors have a dedicated community of users and extensive support. However, the AMD Ryzen™ 9 9900X, being a part of the new AM5 platform, may offer more future-proofing options with upcoming motherboards supporting the latest technologies. The Intel Core i7-8700K, while still popular, is tied to older technology, which may limit upgrade paths in the coming years.

Which should you buy?

Ultimately, the choice between the AMD Ryzen™ 9 9900X and the Intel Core i7-8700K comes down to your specific needs and budget. If you are a serious gamer or creator looking for top-notch performance, the Ryzen 9 9900X may be worth the investment. However, if you are looking for a more budget-friendly option that still provides decent performance for casual gaming and general tasks, the Intel Core i7-8700K is a solid choice. The decision hinges on whether you value cutting-edge specifications and future-proofing over immediate cost savings.