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Intel Core i7-8700K Desktop Processor 6 Cores up vs Intel Core i7-9700K Desktop Processor 8 Cores up

Updated August 2026 — Intel Core i7-8700K Desktop Processor 6 Cores up wins on threads, Intel Core i7-9700K Desktop Processor 8 Cores up wins on cores and price.

The Intel Core i7-9700K offers better single-core performance and more cores, while the i7-8700K is more budget-friendly. Choose based on your performance needs and budget.

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

Price

i7-8700K is $91.40 cheaper

Threads

i7-8700K has 12 threads for multitasking

Integrated Graphics

Both have Intel UHD Graphics 630

Why Intel Core i7-9700K Desktop Processor 8 Cores up is better

Cores

i7-9700K has 8 cores for better performance

Turbo Frequency

i7-9700K reaches up to 4.9 GHz

Gaming Performance

i7-9700K is better for modern games

Overall score

Intel Core i7-8700K Desktop Processor 6 Cores up
85
Intel Core i7-9700K Desktop Processor 8 Cores up
90

Specifications

SpecIntel Core i7-8700K Desktop Processor 6 Cores upIntel Core i7-9700K Desktop Processor 8 Cores up
Max Turbo4.7 GHz4.9 GHz
Cores68
Threads128
Cache12 MB12 MB
GraphicsIntel UHD 630Intel UHD 630

Dimension comparison

Intel Core i7-8700K Desktop Processor 6 Cores upIntel Core i7-9700K Desktop Processor 8 Cores up

Overview of the Processors

When comparing the Intel Core i7-8700K and the Intel Core i7-9700K, the i7-8700K is priced at $185.37, making it about 33% cheaper than the i7-9700K, which costs $276.77. Both processors are part of Intel's 300 Series and offer unlocked performance, but they differ significantly in core count and clock speeds. The i7-8700K features 6 cores and 12 threads, whereas the i7-9700K boasts 8 cores and 8 threads. This fundamental difference in architecture will play a crucial role in how each processor handles multitasking and heavy workloads.

Performance Capabilities

The performance capabilities of the i7-8700K and i7-9700K are characterized by their maximum turbo frequencies and core configurations. The i7-8700K can reach a maximum turbo frequency of 4.7 GHz, while the i7-9700K can go up to 4.9 GHz. This gives the i7-9700K a slight edge in terms of single-core performance, which is beneficial for gaming and applications that rely heavily on high clock speeds. However, the i7-8700K's 12 threads allow for better multitasking capabilities, particularly useful in productivity scenarios that involve running multiple applications simultaneously.

Gaming Performance

In gaming scenarios, both processors are equipped to deliver outstanding performance, but they cater to slightly different needs. The i7-9700K's higher core count allows it to handle modern games that benefit from additional cores, while its turbo frequency also maximizes frame rates. On the other hand, the i7-8700K, with its hyper-threading technology, excels in games that utilize multiple threads effectively. Ultimately, both processors are capable of providing an exceptional gaming experience, but the choice may depend on whether you prioritize peak clock speed or multi-threading performance.

Cooling Solutions

Both the i7-8700K and i7-9700K do not come with a cooling solution included in the box, which is important to note for prospective buyers. Users will need to invest in a separate cooling solution to maintain optimal temperatures during operation. Given that both processors operate at a thermal design power of 95 watts, ensuring adequate cooling is essential for maintaining performance and longevity. The absence of a cooling device means that buyers should also factor in the cost of aftermarket cooling solutions into their overall budget.

Compatibility with Motherboards

Both processors are compatible exclusively with motherboards based on Intel's 300 Series chipsets. This ensures that users looking to upgrade to either processor will need to ensure their motherboard supports this chipset. This compatibility is an important consideration for gamers and PC builders who might already have existing setups. The requirement for a compatible motherboard can add to the overall cost, especially if users need to purchase a new one to take advantage of these processors' features.

Graphics Capabilities

Both the i7-8700K and i7-9700K come with integrated Intel UHD Graphics 630. This feature allows users to run basic applications and light gaming without the need for a dedicated graphics card. However, for serious gaming or graphic-intensive tasks, a dedicated GPU is recommended. The integrated graphics offer a level of convenience for users who may not immediately invest in a discrete graphics card, making both processors viable options for budget-conscious builds.

Price Comparison

The i7-8700K is currently priced at $185.37, while the i7-9700K is offered at $276.77. This represents a price difference of about $91.40, or approximately 33%. The i7-8700K not only offers a more appealing price point but also provides excellent performance for gaming and productivity tasks, making it a strong contender for users who want to maximize their budget. The i7-9700K, while more expensive, may justify its higher price with its additional cores and slightly better turbo frequency, particularly for users focused on gaming.

Which should you buy?

Ultimately, the decision between the Intel Core i7-8700K and the Intel Core i7-9700K hinges on your specific needs and budget. If you are looking for a more affordable option that still offers excellent performance, the i7-8700K is the clear choice. However, if you prioritize higher single-core performance and can accommodate the higher price, the i7-9700K may be worth the investment. Both processors offer robust features and capabilities, making them excellent choices for gamers and productivity enthusiasts alike.