Intel Core Ultra 5 Processor 250KF Plus vs Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black
Updated August 2026 — The Intel Core Ultra 5 Processor 250KF Plus offers superior performance and value compared to the Intel Core i7-7700K.
The Intel Core Ultra 5 Processor 250KF Plus offers superior performance and value compared to the Intel Core i7-7700K.
Why Intel Core Ultra 5 Processor 250KF Plus is better
Core Count
Ultra 5 has 24 cores vs i7's 4 cores
Turbo Speed
Ultra 5 reaches 5.5 GHz vs i7's 4.2 GHz
Future Proofing
Ultra 5 supports PCIe 5.0 and DDR5
Why Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black is better
Integrated Graphics
i7 supports 4K Ultra HD without a discrete GPU
Price
i7 is cheaper for users with existing setups
Legacy Compatibility
i7 works with older motherboards
Overall score
Specifications
| Spec | Intel Core Ultra 5 Processor 250KF Plus | Intel Core i7-7700K 4.2 GHz QuadCore 8 MB Cache CPU - Black |
|---|---|---|
| Brand | Intel | Intel |
| Cores | 24 | 4 |
| Turbo Frequency | 5.5 GHz | 4.2 GHz |
| Base Power | 125W | 91W |
| Integrated Graphics | No | Yes |
Dimension comparison
Introduction to Intel Processors
In this comparison, we will examine the Intel Core Ultra 5 Processor 250KF Plus and the Intel Core i7-7700K 4.2 GHz QuadCore CPU. Both products are designed for high-performance computing, but they cater to different needs and preferences. The Intel Core Ultra 5 is priced at £189.98, while the Intel Core i7-7700K comes in at a higher price point of £308.57. By analysing their specifications and features, we aim to determine which processor offers better value and performance for users.
Performance Capabilities
The Intel Core Ultra 5 Processor 250KF Plus boasts a remarkable configuration, featuring up to 24 cores, consisting of 8 performance cores and 16 efficiency cores. This configuration allows it to handle demanding gaming and creative applications efficiently. In contrast, the Intel Core i7-7700K is a QuadCore processor with a maximum base speed of 4.2 GHz, which is less in terms of core count and performance capability. The Ultra 5 reaches turbo frequencies of up to 5.5 GHz, significantly enhancing its responsiveness compared to the i7-7700K's maximum speed.
Architecture and Compatibility
The two processors differ fundamentally in their architecture and compatibility. The Intel Core Ultra 5 is designed for the next generation of computing, supporting Intel 800 Series Chipset-based motherboards with an LGA1851 socket, and it enables PCIe 5.0 and high-speed DDR5 memory up to 7200 MT/s. This makes it a future-proof option for users looking to upgrade their systems. On the other hand, the Intel Core i7-7700K operates with older technology and is limited to DDR4 memory. The compatibility with older motherboards may appeal to users with existing systems, but it does not offer the same level of future-proofing as the Ultra 5.
Overclocking Potential
For enthusiasts and power users, overclocking potential can be a critical factor. The Intel Core Ultra 5 Processor 250KF Plus is unlocked for performance tuning when paired with Intel Z-series chipsets, allowing users to push the limits of their processor. In contrast, while the i7-7700K is also unlocked and supports overclocking, its lower core count and maximum speed would limit its potential performance gains compared to the Ultra 5. The Ultra 5's robust power and thermal design, with a base power of 125W and a maximum turbo power of 250W, ensure it can sustain high-intensity tasks better than the i7-7700K.
Graphics Support
When it comes to graphics capabilities, the Intel Core Ultra 5 Processor 250KF Plus does not include integrated graphics, necessitating a discrete graphics card for display output. This can be a drawback for users who prefer integrated solutions. The Intel Core i7-7700K, however, has built-in support for 4K Ultra HD, enabling stunning display resolutions of up to 4096 x 2304 pixels across three independent displays with audio. This feature may cater to users who require high-resolution output for tasks such as video editing or gaming without the immediate need for a separate graphics card.
Target Audience
Understanding the target audience for each processor is essential. The Intel Core Ultra 5 Processor 250KF Plus is tailored for gamers and creators who demand high performance and multi-threading capabilities, making it ideal for those who engage in resource-intensive tasks. Its advanced architecture and support for the latest technologies make it perfect for enthusiasts looking to build a modern gaming rig. Conversely, the Intel Core i7-7700K appeals more to users with existing setups who may not need the latest features but still seek decent performance for gaming and general computing.
Pricing and Value
Price is always a crucial factor when considering which processor to purchase. The Intel Core Ultra 5 Processor 250KF Plus is priced at £189.98, while the Intel Core i7-7700K is considerably more expensive at £308.57. Given the features and performance offered by the Ultra 5, it presents a more compelling value proposition for budget-conscious consumers or those looking for the best performance per pound. The cost difference of £118.59 could be a deciding factor for many users when comparing the two offerings.
Which should you buy?
In conclusion, choosing between the Intel Core Ultra 5 Processor 250KF Plus and the Intel Core i7-7700K boils down to your specific needs and budget. If you are seeking a high-performance processor with modern capabilities, significantly higher core counts, and support for next-gen technologies, the Ultra 5 is the clear winner at £189.98. However, if you already have a compatible system that requires an upgrade and value integrated graphics for 4K display support, the i7-7700K at £308.57 may still hold merit. Ultimately, for most users, the Intel Core Ultra 5 Processor 250KF Plus stands out as the better option for both performance and value.
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