Intel® Core™ Ultra 5 Processor 250K Plus 18 cores vs Intel® Core™ i5-11600K Desktop Processor 6 Cores up to 4.9 GHz Unlocked LGA1200
Updated August 2026 — The Intel® Core™ Ultra 5 Processor 250K Plus outperforms the Intel® Core™ i5-11600K in core count, clock speed, and future-proofing capabilities, making it the better choice for high-performance tasks.
The Intel® Core™ Ultra 5 Processor 250K Plus outperforms the Intel® Core™ i5-11600K in core count, clock speed, and future-proofing capabilities, making it the better choice for high-performance tasks.
Why Intel® Core™ Ultra 5 Processor 250K Plus 18 cores is better
Core Count
Ultra 5 has 18 cores vs i5's 6 cores
Turbo Speed
Ultra 5 reaches 5.5 GHz vs i5's 4.9 GHz
Future-Proofing
Ultra 5 supports PCIe 5.0 and DDR5
Why Intel® Core™ i5-11600K Desktop Processor 6 Cores up to 4.9 GHz Unlocked LGA1200 is better
Price
i5 is cheaper at C$390.63
Mainstream Use
i5 is suitable for everyday tasks
Compatibility
i5 works with older chipsets
Overall score
Specifications
| Spec | Intel® Core™ Ultra 5 Processor 250K Plus 18 cores | Intel® Core™ i5-11600K Desktop Processor 6 Cores up to 4.9 GHz Unlocked LGA1200 |
|---|---|---|
| Cores | 18 | 6 |
| Max Turbo | 5.5 GHz | 4.9 GHz |
| Base Power | 125W | TBD |
| Socket | LGA1851 | LGA1200 |
| DDR Support | DDR5 | DDR4 |
Dimension comparison
Overview of the Processors
The Intel® Core™ Ultra 5 Processor 250K Plus offers 18 cores, while the Intel® Core™ i5-11600K Desktop Processor features 6 cores. This significant difference in core count directly impacts their performance capabilities. The Ultra 5 is designed for high-demand gaming and productivity tasks, boasting a maximum turbo frequency of 5.5 GHz, compared to the i5-11600K's top speed of 4.9 GHz. As such, the Ultra 5 presents itself as a more powerful option for users seeking exceptional performance in intensive applications.
Performance Capabilities
When it comes to performance, the Intel® Core™ Ultra 5 Processor 250K Plus excels with its high-performance core configuration, featuring 24 cores in total, comprising 8 performance cores and 16 efficiency cores. This robust architecture allows it to handle demanding applications with ease. In contrast, the Intel® Core™ i5-11600K, with its 6 cores, is more suited for general tasks and moderate gaming. Although the i5-11600K can reach speeds of up to 4.9 GHz, the Ultra 5's 5.5 GHz turbo frequency provides a clear advantage for users requiring intense computational power.
Compatibility with Motherboards
The compatibility of these processors with motherboards varies significantly. The Intel® Core™ Ultra 5 Processor 250K Plus is compatible with Intel 800 Series Chipset-based motherboards featuring the LGA1851 socket. This allows for advanced features such as PCIe 5.0 and high-speed DDR5 memory support, up to 7200 MT/s. On the other hand, the Intel® Core™ i5-11600K is compatible with Intel 500 series and select 400 series chipset motherboards using the LGA1200 socket. While both processors support modern technologies, the Ultra 5's compatibility with newer chipsets may appeal more to future-proofing enthusiasts.
Power and Thermal Design
Power consumption is an essential consideration for high-performance processors. The Intel® Core™ Ultra 5 Processor 250K Plus has a base power rating of 125W and can reach a maximum turbo power of 250W. This robust power design is engineered to sustain high-intensity operations. In comparison, the Intel® Core™ i5-11600K does not specify its maximum turbo power, but its base power is also significant. Users seeking to push their systems to the limits will find the Ultra 5's power management more suited to demanding workloads, especially for overclocking scenarios.
Target Audience
The target audience for these processors differs considerably. The Intel® Core™ Ultra 5 Processor 250K Plus is tailored for enthusiasts and power users who require high performance for gaming, content creation, and other resource-intensive tasks. It is unlocked for performance tuning, making it ideal for overclockers looking to maximise their system's capabilities. Conversely, the Intel® Core™ i5-11600K is geared towards mainstream users who need reliable performance for everyday computing, gaming, and light content creation without the need for extensive tuning.
Pricing
In terms of pricing, the Intel® Core™ Ultra 5 Processor 250K Plus is currently priced at C$332.99, while the Intel® Core™ i5-11600K comes at a higher price point of C$390.63. Despite the Ultra 5's lower price, it offers significantly more cores and a higher clock speed, making it a better value for users focused on high-performance tasks. The price differential is substantial considering the performance benefits the Ultra 5 delivers, which could justify its selection for tech-savvy consumers.
Future-Proofing and Technology
The Intel® Core™ Ultra 5 Processor 250K Plus supports cutting-edge technologies such as PCIe 5.0 and DDR5 memory, which are pivotal for future-proofing a system. This compatibility ensures that users can take full advantage of upcoming advancements in hardware and performance. In contrast, while the Intel® Core™ i5-11600K supports PCIe Gen 4.0, it may not be as well-suited for users looking to invest in the latest technologies. Therefore, those prioritising longevity and cutting-edge capabilities may gravitate towards the Ultra 5.
Which should you buy?
Ultimately, the decision between the Intel® Core™ Ultra 5 Processor 250K Plus and the Intel® Core™ i5-11600K comes down to your specific needs and budget. If you are an enthusiast or power user requiring superior performance for intensive tasks, the Ultra 5's 18 cores and higher turbo frequency make it the clear choice. However, if you are a mainstream user looking for solid performance at a competitive price, the i5-11600K remains a viable option. Considering the Ultra 5's advanced features, better price-to-performance ratio, and future-proofing capabilities, it stands out as the preferable option for most users.
versusfinder.com is a participant in the Amazon.ca Associates Program. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

