Ultra 9 275HX vs Ultra 5 245K

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	208	115
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	76.22	no data
Market segment	Desktop processor	Laptop
Power efficiency	20.82	62.12
Designer	Intel	Intel
Manufacturer	TSMC	no data
Architecture codename	Arrow Lake-S (2024−2025)	Arrow Lake-HX (2025)
Release date	24 October 2024 (less than a year ago)	1 January 2025 (less than a year ago)
Launch price (MSRP)	$319	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core Ultra 5 245K and Core Ultra 9 275HX 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)	24 (Tetracosa-Core)
Performance-cores	6	8
Efficient-cores	8	16
Threads	14	24
Base clock speed	4.2 GHz	2.1 GHz
Boost clock speed	5.2 GHz	5.4 GHz
Bus rate	159 MHz	no data
L1 cache	112 KB (per core)	no data
L2 cache	3 MB (per core)	40 MB
L3 cache	24 MB (shared)	36 MB
Chip lithography	3 nm	3 nm
Die size	243 mm2	no data
Number of transistors	17,800 million	no data
64 bit support	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core Ultra 5 245K and Core Ultra 9 275HX 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	no data
Socket	FCLGA1851	FCBGA2114
Power consumption (TDP)	125 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 245K and Core Ultra 9 275HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Idle States	+	+
Thermal Monitoring	+	+
SIPP	+	-
Turbo Boost Max 3.0	no data	+
Deep Learning Boost	+	+
Supported AI Software Frameworks	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Core Ultra 5 245K and Core Ultra 9 275HX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 245K and Core Ultra 9 275HX are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245K and Core Ultra 9 275HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-6400	DDR5-6400
Maximum memory size	256 GB	192 GB
Max memory channels	2	2
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Graphics	Intel® Graphics
Quick Sync Video	+	+
Graphics max frequency	1.9 GHz	1.9 GHz

Graphics interfaces

Available interfaces and connections of Core Ultra 5 245K and Core Ultra 9 275HX integrated GPUs.

Number of displays supported

4

4

Graphics image quality

Maximum display resolutions supported by Core Ultra 5 245K and Core Ultra 9 275HX integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	4K @ 60Hz	3840x2400 @ 120Hz
Max resolution over DisplayPort	8K @ 60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core Ultra 5 245K and Core Ultra 9 275HX integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.5	4.5

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 245K and Core Ultra 9 275HX.

PCIe version	5.0 and 4.0	5.0 and 4.0
PCI Express lanes	20	24

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.

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Pros & cons summary

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Performance score	27.19	35.69
Recency	24 October 2024	1 January 2025
Physical cores	14	24
Threads	14	24
Power consumption (TDP)	125 Watt	55 Watt

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