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Intel Core i5-12400 Desktop Processor 18M Cache, vs Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores

Updated August 2026 — Intel Core i5-12400 Desktop Processor 18M Cache, wins on graphics, Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores wins on overclocking and compatibility.

The Intel Core Ultra 5 Processor 250KF Plus offers superior performance for demanding tasks, while the Intel Core i5-12400 is a more budget-friendly option for everyday use.

Why Intel Core i5-12400 Desktop Processor 18M Cache, is better

Price

Intel Core i5-12400 is cheaper by $25

Power

Lower base power of 65W

Integrated Graphics

Includes Intel UHD Graphics 730 for basic tasks

Why Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores is better

Performance

Higher core count with 18 cores

Clock Speed

Max turbo frequency of 5.3 GHz

Upgrade Potential

Supports latest Intel 800 Series Chipset

Overall score

Intel Core i5-12400 Desktop Processor 18M Cache,
75
Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores
88

Specifications

SpecIntel Core i5-12400 Desktop Processor 18M Cache,Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores
Max Turbo4.40 GHz5.30 GHz
Cores618
Threads1224
Cache18 MB18 MB
SocketLGA-1700LGA-1851

Dimension comparison

Intel Core i5-12400 Desktop Processor 18M Cache,Intel® Core™ Ultra 5 Processor 250KF Plus 18 cores

Overview of the Intel Core i5-12400 and Intel Core Ultra 5 Processor 250KF Plus

The Intel Core i5-12400 is priced at $214.99, while the Intel Core Ultra 5 Processor 250KF Plus costs $240.58, making the Core i5-12400 about 10.6% cheaper. Both processors are designed for gamers and productivity users, but they target slightly different needs. The i5-12400 features a 6-core design with hyper-threading and a maximum clock speed of 4.40 GHz, while the Ultra 5 boasts an impressive 18-core configuration (6 P-cores and 12 E-cores) that can reach up to 5.3 GHz.

Performance Comparison

In terms of performance, the Intel Core Ultra 5 Processor 250KF Plus has a significant edge due to its higher core count and clock speed. With its ability to reach up to 5.3 GHz, the Ultra 5 is better suited for demanding applications, such as high-end gaming and content creation. Meanwhile, the i5-12400, with its 4.40 GHz maximum speed, is still a strong performer for most tasks but may struggle with the most intensive workloads compared to the Ultra 5.

Core Architecture and Technology

The Intel Core i5-12400 utilizes a 6-core design, combining performance and efficiency cores to deliver solid performance. In contrast, the Ultra 5 features a total of 18 cores, composed of 6 performance cores and 12 efficiency cores. This architecture allows the Ultra 5 to handle multitasking and demanding workloads much more efficiently. Both processors support PCIe 5.0 and DDR4/DDR5 memory, but the Ultra 5's higher core count optimizes it for cutting-edge tasks.

Graphics Capabilities

While both processors are capable of supporting advanced graphics technologies, their built-in graphics capabilities differ significantly. The Intel Core i5-12400 includes an integrated Intel UHD Graphics 730 controller, which allows for basic gaming and multimedia tasks without the need for a discrete GPU. On the other hand, the Ultra 5 does not feature onboard graphics, necessitating the use of a dedicated graphics card for optimal performance—ideal for users who prioritize high-quality graphics in gaming or content creation.

Power and Thermal Design

The Intel Core i5-12400 has a base power of 65W, making it more energy-efficient, which can be a plus for users concerned about power consumption. In contrast, the Ultra 5 has a considerably higher base power of 125W and a maximum turbo power of 250W. This difference indicates that while the Ultra 5 can deliver higher performance, it may require more robust cooling solutions and a stronger power supply, making it less ideal for users seeking efficiency.

Compatibility and Upgrade Potential

For compatibility, the Intel Core i5-12400 uses the LGA-1700 socket and is compatible with Intel 600 Series Chipset-based motherboards, allowing for a straightforward installation in existing systems. The Ultra 5, however, requires an LGA-1851 socket and is designed for Intel 800 Series Chipset-based motherboards, which may necessitate a motherboard upgrade for users looking to upgrade from older systems. This compatibility factor could influence purchasing decisions for those looking to retain their current setup.

Price Considerations

At $214.99, the Intel Core i5-12400 offers a compelling value for users seeking a balance between performance and cost. In contrast, the Intel Core Ultra 5 Processor 250KF Plus, priced at $240.58, represents a higher investment but is designed for users who demand top-tier performance for more intensive applications. The price difference of about $25 may be justified for enthusiasts who require the additional cores and clock speed of the Ultra 5.

Which should you buy?

Choosing between the Intel Core i5-12400 and the Intel Core Ultra 5 Processor 250KF Plus ultimately depends on your specific needs and budget. If you're looking for a solid, cost-effective processor for everyday tasks and light gaming, the Intel Core i5-12400 is a fantastic choice at $214.99. However, if you require a powerhouse for gaming, content creation, or multitasking, and are willing to invest a bit more, the Intel Core Ultra 5 Processor 250KF Plus at $240.58 offers superior performance with its higher core count and clock speeds. Consider your usage scenarios, budget, and potential future upgrades when making your decision.