Ultra 5 245KF vs Ultra 5 245K

Primary details

Comparing Core Ultra 5 245K and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	176	177
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	78.36	81.98
Market segment	Desktop processor	Desktop processor
Power efficiency	20.93	20.86
Architecture codename	Arrow Lake-S (2024−2025)	Arrow Lake-S (2024−2025)
Release date	24 October 2024 (less than a year ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$309	$294

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 5 245KF has 5% better value for money than Ultra 5 245K.

Detailed specifications

Core Ultra 5 245K and Core Ultra 5 245KF basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	14 (Tetradeca-Core)	14 (Tetradeca-Core)
Threads	14	14
Base clock speed	4.2 GHz	4.2 GHz
Boost clock speed	5.2 GHz	5.2 GHz
Bus rate	159 MHz	no data
L1 cache	112 KB (per core)	112 KB (per core)
L2 cache	3 MB (per core)	3 MB (per core)
L3 cache	24 MB (shared)	24 MB (shared)
Chip lithography	3 nm	3 nm
Die size	243 mm2	243 mm2
Number of transistors	17,800 million	17,800 million
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core Ultra 5 245K and Core Ultra 5 245KF compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	1851	1851
Power consumption (TDP)	125 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 245K and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
TSX	+	+
SIPP	+	-

Security technologies

Core Ultra 5 245K and Core Ultra 5 245KF technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

+

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 245K and Core Ultra 5 245KF are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245K and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Arc Xe-LPG Graphics 64EU

N/A

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 245K and Core Ultra 5 245KF.

PCIe version	5.0	5.0
PCI Express lanes	20	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score

27.64

27.55

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Should you still have questions on choice between Core Ultra 5 245K and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.

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