Intel Core i5-10400 Desktop Processor 6 Cores up vs Intel Core Ultra 7 Desktop Processor 265K - 20
Updated August 2026 — Intel Core i5-10400 Desktop Processor 6 Cores up wins on cooling, Intel Core Ultra 7 Desktop Processor 265K - 20 wins on cores and threads.
The Intel Core Ultra 7 offers superior performance with more cores and higher clock speeds, while the Intel Core i5-10400 is a budget-friendly option for casual users.
Why Intel Core i5-10400 Desktop Processor 6 Cores up is better
Price
i5-10400 is significantly cheaper
Power Consumption
i5-10400 has lower thermal design power
Included Cooler
i5-10400 comes with a cooler included
Why Intel Core Ultra 7 Desktop Processor 265K - 20 is better
Performance
Ultra 7 has more cores and higher clock speed
Future Proofing
Ultra 7 supports newer chipset
Multitasking
Ultra 7 is better for intensive applications
Overall score
Specifications
| Spec | Intel Core i5-10400 Desktop Processor 6 Cores up | Intel Core Ultra 7 Desktop Processor 265K - 20 |
|---|---|---|
| Brand | Intel | Intel |
| Core Count | 6 | 20 |
| Thread Count | 12 | 20 |
| Max Frequency | 4.3 GHz | 5.5 GHz |
| TDP | 65W | 125W |
| Cooler Included | Yes | No |
Dimension comparison
Overview of the Processors
The Intel Core i5-10400 is priced at $205.13, while the Intel Core Ultra 7 is available for $289.00, making the Ultra 7 about 41% more expensive. Both processors are from Intel, but they cater to different user needs and performance requirements. The i5-10400 is a solid choice for budget-conscious gamers and content creators, while the Ultra 7 targets high-performance users who need more cores and higher clock speeds.
Core Count and Performance
The Intel Core i5-10400 features 6 cores and 12 threads, running up to 4.3 GHz. In contrast, the Intel Core Ultra 7 boasts a total of 20 cores, comprised of 8 performance cores and 12 efficient cores, with a maximum frequency of 5.5 GHz. The substantial difference in core count and clock speed indicates that the Ultra 7 is designed for more demanding tasks, such as gaming at high settings or intensive multitasking. This makes it a better option for users who need maximum performance from their CPU.
Power Consumption
The Intel Core i5-10400 has a thermal design power of 65W, which is significantly lower than the Intel Core Ultra 7's 125W. This means that the i5-10400 is more energy-efficient and generates less heat, making it suitable for smaller builds or systems that prioritize low power consumption. On the other hand, the Ultra 7's higher power rating suggests it can handle more demanding tasks but may require better cooling solutions and a more robust power supply.
Compatibility with Motherboards
The Intel Core i5-10400 is compatible with Intel 400 series chipset motherboards, while the Intel Core Ultra 7 requires Intel 800 series chipset-based motherboards. This difference can impact upgrade paths for users, as those looking to utilize the Ultra 7 will need to invest in a newer motherboard, adding to the overall cost of the system. Users with existing setups that support the i5-10400 can benefit from a more straightforward upgrade process.
Cooling Solutions
The Intel Core i5-10400 comes with a cooler included in the box, which is a significant advantage for users looking to build a system without additional costs. Conversely, the Intel Core Ultra 7 does not include a thermal solution, which means users must purchase an aftermarket cooler separately. This added expense should be factored into the total cost of the Ultra 7, making the i5-10400 an appealing option for budget builders.
Target Audience
The Intel Core i5-10400 is optimized for gaming, content creation, and productivity at a reasonable price point, making it ideal for casual gamers and everyday users. The Intel Core Ultra 7, however, is tailored for enthusiasts and professionals who require exceptional performance and efficiency, particularly in gaming and multitasking scenarios. The Ultra 7’s advanced architecture and higher core count cater to users who push their systems to the limit.
Price vs. Performance
With the Intel Core i5-10400 priced at $205.13 and the Ultra 7 at $289.00, the price difference is notable, with the Ultra 7 being about 41% more expensive. While the Ultra 7 offers significantly higher performance with its additional cores and clock speed, the i5-10400 provides excellent value for users who do not need the extreme performance levels offered by the Ultra 7. This makes the i5-10400 a compelling choice for those who want effective performance without breaking the bank.
Which should you buy?
Choosing between the Intel Core i5-10400 and the Intel Core Ultra 7 largely depends on your specific needs and budget. If you require a cost-effective processor for gaming or general use, the i5-10400 is a fantastic option at $205.13. However, if you demand higher performance for intensive applications or multitasking and are willing to pay a premium, the Ultra 7 at $289.00 may be the better choice for you. Ultimately, both processors offer distinct advantages that cater to different types of users.

