Intel Core Ultra 5 245K 14-Core 3.6GHz-5.2GHz 24MB Cache LGA 1851 Processor

Intel Core Ultra 5 245K 14-Core 3.6GHz–5.2GHz 24MB Cache LGA 1851 Processor

The Intel Core Ultra 5 245K is a desktop processor built on Intel's Arrow Lake architecture, designed for users who want capable, modern performance without stepping up to the highest-end tier. With 14 cores, a boost clock of up to 5.2GHz, and a 24MB cache, it offers a well-rounded balance of everyday computing speed, multitasking capability, and gaming performance. It uses the LGA 1851 socket, which is part of Intel's 800-series platform, bringing support for DDR5 memory and PCIe 5.0 connectivity.

Sold under barcode 5032037282086, the Intel Core Ultra 5 245K sits in the mid-to-upper tier of Intel's consumer desktop lineup, positioned for enthusiasts and builders who want a capable processor without necessarily requiring the additional cores of the Ultra 7 or Ultra 9 range.

Key Specifications

• Cores: 14 (a combination of Performance and Efficient cores)
• Base clock: 3.6GHz
• Boost clock: up to 5.2GHz
• Cache: 24MB Intel Smart Cache
• Socket: LGA 1851
• Memory support: DDR5
• PCIe support: PCIe 5.0
• Thermal Design Power (TDP): 125W base, with higher limits available when configured for performance
• Unlocked multiplier: Yes (indicated by the K suffix)

What Makes the Intel Core Ultra 5 245K Notable

Hybrid Core Architecture

Like other processors in the Arrow Lake family, the Intel Core Ultra 5 245K uses a hybrid architecture combining Performance cores (P-cores) and Efficient cores (E-cores). P-cores handle latency-sensitive tasks such as gaming and single-threaded workloads, while E-cores manage background tasks and multithreaded workloads more efficiently. This design allows the processor to distribute tasks intelligently, improving overall responsiveness without unnecessary power draw.

Overclocking Capability

The K suffix indicates that this processor has an unlocked multiplier, meaning users can overclock it beyond its default specifications when paired with a compatible Z890 motherboard. This gives enthusiasts additional headroom to push performance further, though results will depend on cooling solutions and individual chip quality.

Modern Platform Support

The LGA 1851 socket brings access to the latest Intel 800-series chipsets, including Z890. This translates to DDR5 memory support for higher bandwidth and lower latency compared to DDR4 platforms, as well as PCIe 5.0 lanes for next-generation storage and graphics card connections. Builders choosing the Intel Core Ultra 5 245K are investing in a platform with meaningful longevity.

Integrated Graphics

The Intel Core Ultra 5 245K includes Intel's integrated graphics, which means the system can output video without a dedicated GPU. While this is not intended as a replacement for a discrete graphics card in gaming or content creation scenarios, it provides a useful fallback for troubleshooting or light desktop use.

Who Is This Processor For

The Intel Core Ultra 5 245K suits several types of users. Gamers who prioritise high frame rates in modern titles will benefit from the strong single-core performance and fast boost clocks. Content creators working with video editing, photo editing, or streaming will find the combination of P-cores and E-cores handles multithreaded workloads competently. Home office and productivity users building or upgrading a desktop system will also find this processor more than adequate for demanding software and multitasking.

It is less suited for users with heavily threaded professional workloads such as 3D rendering or large-scale data processing, where processors with higher core counts in the Ultra 7 or Ultra 9 range may offer more value.

Usage Tips

Cooling Requirements

Intel does not include a stock cooler with the Core Ultra 5 245K. Users should plan for an aftermarket cooling solution. A quality air cooler or a 240mm all-in-one liquid cooler is recommended for standard operation, while those intending to overclock should consider more capable cooling to sustain higher clock speeds and manage thermal output effectively.

Motherboard Compatibility

This processor requires an LGA 1851 socket motherboard. To take advantage of overclocking capabilities, a Z890 chipset motherboard is necessary. B860 boards also support the LGA 1851 socket but do not support overclocking. Always verify compatibility before purchasing components.

Memory Configuration

For best performance, pair the Intel Core Ultra 5 245K with DDR5 memory running at XMP or EXPO profiles supported by the motherboard. Higher memory speeds can improve performance in both gaming and productivity tasks on this platform.

Buying Advice

When considering the Intel Core Ultra 5 245K, factor in the total cost of the LGA 1851 platform. DDR5 memory and 800-series motherboards represent a new investment compared to older platforms, so this processor is best suited to those building a new system rather than upgrading an existing one. If you are upgrading from a previous-generation Intel build, the socket change means a new motherboard is required.

Compare the Core Ultra 5 245K against the Core Ultra 7 265K if your workload involves significant multithreaded processing. For primarily gaming-focused builds, the 245K provides strong value and the performance difference in games compared to higher-tier processors is often minimal.

Common Questions

Does the Intel Core Ultra 5 245K come with a cooler?

No, Intel does not include a cooler in the box with the Core Ultra 5 245K. You will need to purchase a separate cooling solution before using the processor.

Is the LGA 1851 socket the same as LGA 1700?

No. LGA 1851 and LGA 1700 are different sockets and are not compatible with each other. Processors using LGA 1851 require 800-series motherboards, while LGA 1700 is used with 12th, 13th, and 14th generation Intel processors on 600 and 700-series boards.

Can the Core Ultra 5 245K run without a dedicated graphics card?

Yes. The processor includes integrated Intel graphics, which allows the system to display video output without a discrete GPU. However, for gaming or graphics-intensive work, a dedicated graphics card is strongly recommended.

What is the difference between the Core Ultra 5 245K and the Core Ultra 5 245KF?

The KF variant does not include integrated graphics. It is otherwise comparable to the standard 245K and is sometimes priced slightly lower. If you rely on integrated graphics for any purpose, choose the standard Intel Core Ultra 5 245K.

Is DDR4 memory compatible with this processor?

No. The LGA 1851 platform supports DDR5 memory only. DDR4 modules are not compatible with 800-series motherboards designed for this socket.