Intel Boxed Core I7-6700 FC-LGA14C 3.40 GHz 8 M vs Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores
Updated August 2026 — Intel Boxed Core I7-6700 FC-LGA14C 3.40 GHz 8 M wins on price and compatibility, Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores wins on performance and gaming.
The Intel Core Ultra 5 Processor 250KF Plus outperforms the Intel Boxed Core I7-6700 in almost every aspect, making it the better choice for high-performance needs.
Why Intel Boxed Core I7-6700 FC-LGA14C 3.40 GHz 8 M is better
Price
I7-6700 is significantly cheaper.
Compatibility
Supports older DDR4 and DDR3L memory.
Power Consumption
Lower power requirement for basic systems.
Why Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores is better
Performance
Higher core count and turbo frequency.
Future-proofing
Supports DDR5 and PCIe 5.0.
Gaming
Better suited for modern gaming demands.
Overall score
Specifications
| Spec | Intel Boxed Core I7-6700 FC-LGA14C 3.40 GHz 8 M | Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores |
|---|---|---|
| Cores | 4 | 18 |
| Turbo Frequency | 3.40 GHz | 5.3 GHz |
| Socket Type | LGA 1151 | LGA 1851 |
| Memory Support | DDR4 & DDR3L | DDR5 |
| Base Power | 65W | 125W |
| Max Power | TBD | 250W |
Dimension comparison
Overview
The Intel Boxed Core I7-6700 and the Intel Core Ultra 5 Processor 250KF Plus cater to different segments of the CPU market. The i7-6700 is priced at $96.99, making it significantly more affordable than the Ultra 5, which retails for $240.58. This price difference of about 148% reflects the advancements in technology and performance features found in the Ultra 5.
Performance
When comparing performance, the Intel Core Ultra 5 Processor 250KF Plus has a clear advantage due to its 18 cores, consisting of 6 performance cores and 12 efficiency cores, allowing it to handle demanding tasks more effectively. In contrast, the Intel Boxed Core I7-6700 features 4 cores, which while capable, may struggle with the latest high-performance applications and gaming. The Ultra 5's ability to reach up to 5.3 GHz turbo frequency further enhances its performance edge over the I7-6700, which operates at a base frequency of 3.40 GHz.
Compatibility
Compatibility is another significant factor in this comparison. The Intel Boxed Core I7-6700 is compatible with LGA 1151 motherboards and supports both DDR4 and DDR3L memory types, providing flexibility for users with older setups. Conversely, the Intel Core Ultra 5 Processor 250KF Plus requires an LGA 1851 socket and is designed for next-gen platforms, supporting high-speed DDR5 memory up to 7200 MT/s and PCIe 5.0/4.0. This makes the Ultra 5 more future-proof but also means it may require users to upgrade their motherboards.
Gaming Capability
For gaming, the Intel Core Ultra 5 Processor 250KF Plus stands out with its higher core count and turbo frequency, making it an ideal choice for gamers who demand top-tier responsiveness. The I7-6700, while still capable of handling many games, may not perform as well in newer titles that leverage more cores and threads. The Ultra 5’s advanced architecture is built specifically for demanding gaming scenarios, while the I7-6700 may struggle with modern AAA titles that require more processing power.
Thermal Design and Power Consumption
The thermal design and power consumption of both processors reflect their intended use cases. The Intel Core Ultra 5 Processor 250KF Plus is engineered with a base power of 125W and can reach a maximum turbo power of 250W. This robust design is necessary to sustain high-intensity workloads. On the other hand, the Intel Boxed Core I7-6700 has a more modest power requirement, making it easier to integrate into less powerful systems without needing extensive cooling solutions, but it sacrifices some performance in doing so.
Intended Use
The intended use of each processor greatly influences their suitability for different users. The Intel Boxed Core I7-6700 is designed for everyday users, offering solid performance for general tasks, productivity applications, and light gaming. In contrast, the Intel Core Ultra 5 Processor 250KF Plus targets enthusiasts and power users who require top-of-the-line performance for gaming, content creation, and multitasking. Therefore, your choice should align with your specific needs and workload demands.
Price Comparison
In terms of pricing, the Intel Boxed Core I7-6700 is priced at $96.99, while the Intel Core Ultra 5 Processor 250KF Plus is significantly more expensive at $240.58. This constitutes a price difference of around $143.59, making the I7-6700 about 60% cheaper than the Ultra 5. This price disparity reflects the technological advancements and performance capabilities of the Ultra 5, which may justify its higher cost for users needing those features.
Which should you buy?
Ultimately, the choice between the Intel Boxed Core I7-6700 and the Intel Core Ultra 5 Processor 250KF Plus hinges on your specific needs and budget. If you are looking for an economical option that can handle everyday tasks and light gaming, the I7-6700 is a solid choice. However, if you require a powerful processor that can handle demanding applications and gaming with ease, the Ultra 5 is worth the investment, offering advanced features and performance that justify its higher price.

