Intel Core Ultra 5 Processor 250K Plus vs Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black
Updated August 2026 — The Intel Core Ultra 5 Processor 250K Plus outperforms the Intel Core i7-7700K in almost every aspect, making it the better choice for high-performance needs.
The Intel Core Ultra 5 Processor 250K Plus outperforms the Intel Core i7-7700K in almost every aspect, making it the better choice for high-performance needs.
Why Intel Core Ultra 5 Processor 250K Plus is better
Core Count
Ultra 5 has 24 cores vs i7's 4 cores
Turbo Frequency
Ultra 5 reaches 5.5 GHz vs i7's 4.2 GHz
Future Compatibility
Ultra 5 supports PCIe 5.0 and DDR5
Why Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black is better
Price
i7 is cheaper at £308.57
4K Support
i7 supports 4K Ultra HD
Lower Power
i7 typically consumes less power
Overall score
Specifications
| Spec | Intel Core Ultra 5 Processor 250K Plus | Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black |
|---|---|---|
| Processor Name | Intel Core Ultra 5 | Intel Core i7-7700K |
| Base Speed | 125W | Unknown |
| Max Turbo | 5.5 GHz | 4.2 GHz |
| Cache Size | N/A | 8 MB |
| Socket Type | LGA1851 | LGA1151 |
| Price | £205.49 | £308.57 |
Dimension comparison
Overview of the Intel Core Ultra 5 Processor 250K Plus
The Intel Core Ultra 5 Processor 250K Plus is priced at £205.49 and is built for high performance in gaming and productivity. This processor features a robust architecture with up to 24 cores, comprising 8 performance cores and 16 efficiency cores, allowing it to handle demanding tasks efficiently. It also supports next-generation technologies, including PCIe 5.0 and DDR5 memory, which can reach speeds of up to 7200 MT/s, ensuring that it is well-equipped for future applications.
In contrast, the Intel Core i7-7700K, available for £308.57, is a quad-core processor with a base speed of 4.2 GHz and an 8 MB cache. While it offers solid performance, particularly with its 4K Ultra HD support, it does not match the core count or the advanced features of the Ultra 5. Thus, if you seek cutting-edge technology and more cores for multitasking, the Ultra 5 may be the more attractive option.
Performance Capabilities
The performance capabilities of the Intel Core Ultra 5 Processor 250K Plus are notable, reaching a maximum turbo frequency of 5.5 GHz, which provides exceptional responsiveness during intensive tasks. This processor is engineered with a base power of 125W and a maximum turbo power of 250W, ensuring that it can sustain high-performance levels during demanding applications.
On the other hand, the Intel Core i7-7700K operates at a steady 4.2 GHz. While it does deliver solid performance for everyday tasks and gaming, its quad-core design may struggle under the load of more demanding applications compared to the 24 cores of the Ultra 5. Thus, for users who require top-tier performance and multitasking capabilities, the Ultra 5 holds a distinct advantage.
Power and Thermal Management
Power and thermal management are critical in high-performance processors. The Intel Core Ultra 5 Processor 250K Plus boasts a well-engineered thermal design, with a base power of 125W and a maximum turbo power of 250W. This architecture allows it to maintain optimal performance even under heavy workloads, making it suitable for power users and overclockers.
In comparison, the Intel Core i7-7700K does not specify its thermal design power, but its quad-core structure typically results in lower power consumption. However, this means it may not handle high-intensity processes as effectively as the Ultra 5. Therefore, for users looking to push their systems to the limit, the Ultra 5's superior power and thermal management make it the more reliable choice.
Compatibility with Modern Technology
The Intel Core Ultra 5 Processor 250K Plus is designed with modern technology in mind, offering compatibility with Intel 800 Series Chipset-based motherboards featuring the LGA1851 socket. This allows users to take full advantage of PCIe 5.0 and high-speed DDR5 memory, which enhances data transfer rates and overall system performance.
Conversely, the Intel Core i7-7700K, while also a solid processor, does not support these next-gen features. It is limited to older technology, which can hinder future upgrades and overall performance enhancements. For those prioritising compatibility with cutting-edge hardware, the Ultra 5 is clearly the more future-proof option.
Target User Base
The target user base for the Intel Core Ultra 5 Processor 250K Plus primarily includes gamers and content creators who demand high performance from their systems. With its 24 cores and high turbo frequency, this processor can efficiently handle multitasking and resource-intensive applications, making it an ideal choice for enthusiasts who wish to optimise their setups.
In contrast, the Intel Core i7-7700K is suited for general users who engage in casual gaming and standard productivity tasks. While it does offer good performance for these applications, it lacks the core count and advanced features found in the Ultra 5, making it less ideal for users with more demanding workloads. Therefore, if you are an enthusiast or a professional, the Ultra 5 is likely to meet your needs better.
Price Comparison
The pricing of these two processors highlights a significant difference. The Intel Core Ultra 5 Processor 250K Plus is priced at £205.49, making it a more budget-friendly option for those seeking high performance. In contrast, the Intel Core i7-7700K comes at a higher price of £308.57, which may deter users looking for value in performance.
Given the advanced features and higher core count of the Ultra 5, it presents a better price-to-performance ratio for users who require robust processing power. Therefore, in terms of affordability and value for performance, the Ultra 5 stands out as the more economically sensible choice.
User Experience and Overclocking Potential
In terms of user experience, the Intel Core Ultra 5 Processor 250K Plus is unlocked for performance tuning when paired with Intel Z-series chipsets, making it highly appealing to overclockers and power users. This flexibility allows enthusiasts to push their systems beyond standard performance limits, optimising their setups for both gaming and productivity.
The Intel Core i7-7700K does provide some overclocking capabilities; however, its quad-core design limits the extent to which users can enhance performance compared to the Ultra 5. For those who prioritise customisation and performance tuning, the Ultra 5 offers a more robust platform for achieving desired results.
Which should you buy?
In conclusion, the decision between the Intel Core Ultra 5 Processor 250K Plus and the Intel Core i7-7700K largely hinges on your specific needs and budget. The Ultra 5, with its advanced features, higher core count, and more future-proof technology, stands out as the superior choice for gamers and content creators seeking top-tier performance. Priced at £205.49, it offers excellent value for the capabilities it delivers.
On the other hand, if your requirements are more casual and you are looking for a processor that can handle everyday tasks without the need for cutting-edge technology, the Intel Core i7-7700K, although more expensive at £308.57, may suffice. However, for those serious about performance and looking to invest in a system that can sustain demanding applications, the Ultra 5 is undoubtedly the better option.
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