i5-4278U vs Ultra 5 125H

Primary details

Comparing Core Ultra 5 125H and Core i5-4278U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	529	2028
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Meteor Lake-H	Intel Core i5
Power efficiency	47.35	6.02
Architecture codename	Meteor Lake-H (2023)	Haswell (2013−2015)
Release date	14 December 2023 (1 year ago)	21 July 2014 (10 years ago)
Launch price (MSRP)	$375	$315

Detailed specifications

Core Ultra 5 125H and Core i5-4278U 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)	2 (Dual-core)
Threads	18	4
Base clock speed	3.6 GHz	2.6 GHz
Boost clock speed	4.5 GHz	3.1 GHz
Bus rate	no data	5 GT/s
L1 cache	112 KB (per core)	128 KB
L2 cache	2 MB (per core)	512 KB
L3 cache	18 MB (shared)	3 MB
Chip lithography	Intel 4 nm	22 nm
Die size	no data	181 mm2
Maximum core temperature	110 °C	100 °C
Number of transistors	no data	1300 Million
64 bit support	+	+
Windows 11 compatibility	no data	-

Compatibility

Information on Core Ultra 5 125H and Core i5-4278U 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	FCBGA1168
Power consumption (TDP)	28 Watt	28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 5 125H and Core i5-4278U. 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	+	no data
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Turbo Boost Max 3.0	-	no data
Deep Learning Boost	+	-
Supported AI Software Frameworks	OpenVINO™, WindowsML, ONNX RT	-

Security technologies

Core Ultra 5 125H and Core i5-4278U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Secure Key	+	+
Identity Protection	-	+
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 5 125H and Core i5-4278U are enumerated here.

AMD-V	-	+
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 125H and Core i5-4278U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR3
Maximum memory size	96 GB	16 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	Intel Iris Graphics 5100
Max video memory	no data	2 GB
Quick Sync Video	+	+
Clear Video HD	no data	+
Graphics max frequency	2.2 GHz	1.1 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core Ultra 5 125H and Core i5-4278U integrated GPUs.

Number of displays supported	4	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+

Graphics image quality

Maximum display resolutions supported by Core Ultra 5 125H and Core i5-4278U 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)	3280x2000@60Hz
Max resolution over eDP	3840x2400 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	3200x2000@60Hz

Graphics API support

APIs supported by Core Ultra 5 125H and Core i5-4278U integrated GPUs, sometimes API versions are included.

DirectX	12.2	11.2/12
OpenGL	4.6	4.3

Peripherals

Specifications and connection of peripherals supported by Core Ultra 5 125H and Core i5-4278U.

PCIe version	5.0	2
PCI Express lanes	28	12
PCI support	5.0 and 4.0	no data

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	14.01	1.78
Recency	14 December 2023	21 July 2014
Physical cores	14	2
Threads	18	4

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Should you still have questions on choice between Core Ultra 5 125H and Core i5-4278U, ask them in Comments section, and we shall answer.

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