Intel Core i7-8700K Desktop Processor 6 Cores up vs Intel® Core™ Ultra 5 Desktop Processor 245K 14
Updated August 2026 — Intel Core i7-8700K Desktop Processor 6 Cores up wins on graphics and power, Intel® Core™ Ultra 5 Desktop Processor 245K 14 wins on performance and architecture.
The Intel Core Ultra 5 offers superior performance and modern architecture, making it the better choice for demanding tasks. However, the i7-8700K remains a solid option for budget-conscious users.
Why Intel Core i7-8700K Desktop Processor 6 Cores up is better
Price
i7-8700K is cheaper by $12.63
Established
i7-8700K has a proven track record in gaming
Integrated Graphics
i7-8700K includes Intel UHD Graphics 630
Why Intel® Core™ Ultra 5 Desktop Processor 245K 14 is better
Performance
Ultra 5 has 14 cores vs 6 cores in i7-8700K
Clock Speed
Ultra 5 can reach up to 5.2 GHz
Architecture
Ultra 5 features a performance hybrid architecture
Overall score
Specifications
| Spec | Intel Core i7-8700K Desktop Processor 6 Cores up | Intel® Core™ Ultra 5 Desktop Processor 245K 14 |
|---|---|---|
| Cores | 6 | 14 |
| Threads | 12 | 14 |
| Max Clock | 4.7 GHz | 5.2 GHz |
| TDP | 95W | 125W |
| Cache | 12 MB | 26 MB |
Dimension comparison
Overview of the Intel Core i7-8700K and Intel Core Ultra 5
The Intel Core i7-8700K is priced at $185.37, while the Intel Core Ultra 5 costs $198.00, making the i7-8700K about 6.5% cheaper. Both processors are from Intel and cater to high-performance computing, but they target slightly different user needs. The i7-8700K is a well-established option that has been popular among gamers and content creators. In contrast, the Intel Core Ultra 5 is a newer entry, designed with a hybrid architecture that optimizes performance and efficiency.
Performance Comparison
The Intel Core Ultra 5 boasts a significant performance advantage with its 14 cores, consisting of 6 performance cores and 8 efficiency cores, compared to the i7-8700K's 6 cores and 12 threads. The Ultra 5 can reach up to 5.2 GHz, which is 10.6% higher than the i7-8700K's max turbo frequency of 4.7 GHz. This difference indicates that the Ultra 5 is likely to handle multitasking and demanding applications more efficiently than its predecessor.
Architecture and Technology
The Intel Core Ultra 5 employs a performance hybrid architecture that integrates two core microarchitectures. This design allows it to prioritize and distribute workloads more effectively than the i7-8700K, which relies on a traditional architecture. The Ultra 5 supports PCIe 5.0 and 4.0, enhancing its compatibility with next-generation graphics cards and storage solutions. Meanwhile, the i7-8700K is limited to Intel 300 series chipsets and does not have the same level of future-proofing in terms of new technologies.
Power Consumption
The Intel Core i7-8700K has a TDP of 95W, while the Intel Core Ultra 5 has a base power of 125W. This means that the Ultra 5 may consume more power under load, but it also offers higher performance potential. The additional power might translate into better performance during intensive tasks, but users should consider their cooling solutions and power supply capacity when opting for the Ultra 5.
Compatibility
Compatibility is a significant factor when choosing a CPU. The Intel Core i7-8700K is compatible only with motherboards based on Intel 300 series chipsets, while the Intel Core Ultra 5 requires Intel 800 series chipset-based motherboards. If you already own a compatible motherboard for one of these processors, it could influence your decision. The Ultra 5's newer chipset may offer additional features and performance improvements, but it could also require a more recent motherboard.
Graphics Integration
The Intel Core i7-8700K features Intel UHD Graphics 630, providing basic graphics capabilities that are adequate for casual gaming and general use. In contrast, the Intel Core Ultra 5 does not specify integrated graphics capabilities in the provided details. This distinction is crucial for users who may not have a dedicated GPU and rely on integrated graphics for their computing tasks.
Use Case Scenarios
For gamers and content creators who prioritize established performance, the Intel Core i7-8700K remains a solid choice, especially given its lower price point. It excels in gaming scenarios and offers features like Intel Optane Memory support. On the other hand, the Intel Core Ultra 5 is optimized for both gaming and productivity, making it a versatile option for users who need high performance in multitasking environments. Its modern architecture and higher clock speed make it particularly appealing for those who frequently run demanding applications.
Which should you buy?
Choosing between the Intel Core i7-8700K and the Intel Core Ultra 5 depends on your specific needs and budget. If you are looking for a cost-effective solution with solid performance for gaming and general use, the i7-8700K at $185.37 is a compelling option. However, if you require cutting-edge performance and are willing to invest an additional $12.63 for the Intel Core Ultra 5, its advanced architecture and higher clock speed may justify the price. Ultimately, your decision should reflect the balance between performance needs and budget considerations.

