Ultra 5 125U vs Ultra 5 135H

Primary details

Comparing Core Ultra 5 135H and Core Ultra 5 125U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	498	701
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Meteor Lake-H	Intel Meteor Lake-U
Power efficiency	48.70	69.40
Architecture codename	Meteor Lake-H (2023)	Meteor Lake-P (2023)
Release date	14 December 2023 (less than a year ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$342	$363

Detailed specifications

Core Ultra 5 135H and Core Ultra 5 125U 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)	12 (Dodeca-Core)
Threads	18	14
Base clock speed	3.6 GHz	1.3 GHz
Boost clock speed	4.6 GHz	4.3 GHz
L1 cache	112 KB (per core)	112 KB (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	18 MB (shared)	12 MB (shared)
Chip lithography	Intel 4 nm	Intel 4 nm
Maximum core temperature	110 °C	110 °C
64 bit support	+	+

Compatibility

Information on Core Ultra 5 135H and Core Ultra 5 125U 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	FCBGA2049	FCBGA2049
Power consumption (TDP)	28 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 135H and Core Ultra 5 125U. 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	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Hyper-Threading Technology	+	+
TSX	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	+	-
Turbo Boost Max 3.0	-	-
Deep Learning Boost	+	+
Supported AI Software Frameworks	OpenVINO™, WindowsML, ONNX RT	OpenVINO™, WindowsML, ONNX RT

Security technologies

Core Ultra 5 135H and Core Ultra 5 125U 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 135H and Core Ultra 5 125U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 135H and Core Ultra 5 125U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR5
Maximum memory size	96 GB	96 GB
Max memory channels	2	2

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	Intel® Graphics
Quick Sync Video	+	+
Graphics max frequency	2.2 GHz	1.85 GHz

Graphics interfaces

Available interfaces and connections of Core Ultra 5 135H and Core Ultra 5 125U integrated GPUs.

Number of displays supported

4

4

Graphics image quality

Maximum display resolutions supported by Core Ultra 5 135H and Core Ultra 5 125U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	3840x2400 @ 120Hz	3840x2400 @ 120Hz
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core Ultra 5 135H and Core Ultra 5 125U integrated GPUs, sometimes API versions are included.

DirectX	12.2	12.2
OpenGL	4.6	4.6

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 135H and Core Ultra 5 125U.

PCIe version	5.0	4.0
PCI Express lanes	8	12
PCI support	5.0 and 4.0	4.0

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	14.41	11.00
Physical cores	14	12
Threads	18	14
Power consumption (TDP)	28 Watt	15 Watt

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Should you still have questions on choice between Core Ultra 5 135H and Core Ultra 5 125U, ask them in Comments section, and we shall answer.

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