Intel

Intel Core Ultra 5 245KF

Expert rating8.5 / 10

Brand:: Intel
Form Factor:: Desktop
CPU Socket:: LGA 1851
Core/Thread Count:: 14C/14T
TDP:: 65W
iGPU:: None
CPU Series:: Core Ultra

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Manufacturer: Intel Last updated: 2026-09-12

Intel Core Ultra 5 245KF Review

Intel Core Ultra 5 245KF 14-core 14-thread desktop processor, 4.2GHz base / 5.7GHz boost, 65W TDP, Arrow Lake-S, LGA 1851 socket

The Intel Core Ultra 5 245KF is an unlocked desktop Arrow Lake-S processor for overclocking-focused builds. Built on Intel's Arrow Lake-S architecture, it pairs 14 cores and 14 threads with a 4.2GHz base clock that boosts up to 5.7GHz, an on-die NPU rated at 13 TOPS (NPU 3), and None graphics, all within a 65W envelope.

Performance and Architecture

With 14 cores and 14 threads, the Intel Core Ultra 5 245KF is built on Intel's Arrow Lake-S generation. Its 4.2GHz base clock boosts to 5.7GHz, and its None integrated graphics and 13 TOPS (NPU 3) NPU support on-device AI features alongside everyday computing and light content creation.

Platform and Efficiency

The Intel Core Ultra 5 245KF uses the LGA 1851 platform in a 65W envelope, positioning it as overclocking-focused builds. Its NPU brings Copilot+ style on-device AI acceleration to supported workloads.

Comparison to Alternatives

Within the Core Ultra lineup in this catalog, the Intel Core Ultra 5 245KF sits in the 5-series tier alongside other Arrow Lake-S parts, differentiated mainly by clock speed, core count, and TDP. Against AMD's Ryzen AI Mobile processors in this catalog, Intel's Core Ultra competes on NPU throughput, integrated graphics, and platform efficiency, while against Intel's own prior-generation Core i mobile parts in this catalog it adds the on-die NPU and improved efficiency cores.

Specifications

Identity

Codename	Arrow Lake-S
Release Year	2024

Segment and platform

Market Segment	Desktop
Microarchitecture	Arrow Lake-S
Socket	LGA 1851
Socket Status	Current
Process Node	3 nm

Core configuration

Total Cores	14
Performance Cores	6
Efficiency Cores	8
Total Threads	14
SMT Enabled	No

Clock speeds

P-Core Base Clock	4.2 GHz
P-Core Boost Clock	5.2 GHz
E-Core Base Clock	3.6 GHz
E-Core Boost Clock	4.6 GHz
Unlocked Multiplier	Yes

Cache

L2 Cache	26 MB
L3 Cache	24 MB
3D Stacked Cache	No

Power and thermal

Base Power	125 W
Max Turbo Power	159 W

Memory

Memory Type	DDR5
Max Memory Speed	6400 MT/s
Memory Channels	2
Max Memory Capacity	256 GB
ECC Support	No

Graphics and AI

Integrated Graphics	No
NPU Peak TOPS	13 TOPS (NPU 3)
NPU Peak TOPS	13 TOPS
Copilot Plus Certified	No

Expansion

PCIe Generation	PCIe 5.0
PCIe Lanes	24

Commercial

Launch MSRP	294 USD
Retail Availability	Boxed Retail

Form Factor	Desktop
TDP	65 W
iGPU	None

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.5 / 10

The Intel Core Ultra 5 245KF is a flagship unlocked desktop Arrow Lake-S processor, a solid pick for overclocking enthusiasts.

Best for

Desktop gaming
Everyday productivity
Overclocking

Not for

Laptops
Fanless designs
Extreme power efficiency needs

FAQs

What are the key specifications of the Intel Core Ultra 5 245KF?

The Intel Core Ultra 5 245KF is a processor from Intel. Key specs: Cores 14, Threads 14, Base Clock 4.2 GHz, Boost Clock 5.7 GHz, L3 Cache 21.

Will the Intel Core Ultra 5 245KF work with my current setup?

The Intel Core Ultra 5 245KF lists Socket is LGA 1851. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.