Celeron U3405 vs Ultra 7 155H

Primary details

Comparing Core Ultra 7 155H and Celeron U3405 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	424	2955
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Meteor Lake-H	Intel Celeron
Power efficiency	53.44	2.26
Architecture codename	Meteor Lake-H (2023)	Westmere (2010−2011)
Release date	14 December 2023 (less than a year ago)	no data (2024 years ago)
Launch price (MSRP)	$503	no data

Detailed specifications

Core Ultra 7 155H and Celeron U3405 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	16 (Hexadeca-Core)	2 (Dual-core)
Threads	22	2
Base clock speed	3.8 GHz	1.06 GHz
Boost clock speed	4.8 GHz	0.07 GHz
Bus type	no data	DMI 1.0
Bus rate	no data	1 × 2.5 GT/s
Multiplier	no data	8
L1 cache	112 KB (per core)	128 KB
L2 cache	2 MB (per core)	512 KB
L3 cache	24 MB (shared)	2 MB
Chip lithography	Intel 4 nm	32 nm
Die size	no data	81 mm2
Maximum core temperature	110 °C	90 °C
Number of transistors	no data	382 Million
64 bit support	+	+
Windows 11 compatibility	no data	-

Compatibility

Information on Core Ultra 7 155H and Celeron U3405 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 (Uniprocessor)
Socket	FCBGA2049	BGA1288
Power consumption (TDP)	28 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 155H and Celeron U3405. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
FMA	-	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	no data	-
Hyper-Threading Technology	+	-
TSX	+	-
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
PAE	no data	36 Bit
Turbo Boost Max 3.0	+	no data
FDI	no data	+
Fast Memory Access	no data	+
Deep Learning Boost	+	-
Supported AI Software Frameworks	OpenVINO™, WindowsML, ONNX RT	-

Security technologies

Core Ultra 7 155H and Celeron U3405 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 7 155H and Celeron U3405 are enumerated here.

VT-d	+	-
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155H and Celeron U3405. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR3-800, DDR3-1066
Maximum memory size	96 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	no data	17.051 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	Intel HD Graphics for Previous Generation Intel Processors
Quick Sync Video	+	-
Clear Video	no data	+
Graphics max frequency	2.25 GHz	500 MHz

Graphics interfaces

Available interfaces and connections of Core Ultra 7 155H and Celeron U3405 integrated GPUs.

Number of displays supported

4

2

Graphics image quality

Maximum display resolutions supported by Core Ultra 7 155H and Celeron U3405 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)	no data
Max resolution over eDP	3840x2400 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core Ultra 7 155H and Celeron U3405 integrated GPUs, sometimes API versions are included.

DirectX	12.2	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core Ultra 7 155H and Celeron U3405.

PCIe version	5.0	2.0
PCI Express lanes	8	16
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	15.81	0.43
Physical cores	16	2
Threads	22	2
Power consumption (TDP)	28 Watt	18 Watt

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Should you still have questions on choice between Core Ultra 7 155H and Celeron U3405, ask them in Comments section, and we shall answer.

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