Celeron J3455E vs Core Ultra 7 155H

Primary details

Comparing Core Ultra 7 155H and Celeron J3455E processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	383	2116
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Meteor Lake-H	no data
Architecture codename	Meteor Lake-H	no data
Release date	14 December 2023 (less than a year ago)	1 July 2019 (5 years ago)

Detailed specifications

Core Ultra 7 155H and Celeron J3455E 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)	no data
Threads	22	4
Base clock speed	3.8 GHz	1.5 GHz
Boost clock speed	4.8 GHz	2.3 GHz
L1 cache	112 KB (per core)	no data
L2 cache	2 MB (per core)	no data
L3 cache	24 MB (shared)	2 MB
Chip lithography	7 nm	14 nm
Maximum core temperature	no data	105 °C
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	No	No

Compatibility

Information on Core Ultra 7 155H and Celeron J3455E 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	no data
Power consumption (TDP)	28 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 155H and Celeron J3455E. 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	+	+
AVX	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	no data	-
Hyper-Threading Technology	+	-
TSX	+	no data
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	-	-
Smart Response	no data	-
Turbo Boost Max 3.0	+	no data
Status	Launched	Discontinued

Security technologies

Core Ultra 7 155H and Celeron J3455E technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 7 155H and Celeron J3455E are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155H and Celeron J3455E. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s
Maximum memory size	96 GB	8 GB
Max memory channels	2	2
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	Intel HD Graphics 500
Max video memory	no data	8 GB
Quick Sync Video	+	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	2.25 GHz	750 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Core Ultra 7 155H and Celeron J3455E integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core Ultra 7 155H and Celeron J3455E 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 J3455E integrated GPUs, sometimes API versions are included.

DirectX	12.2	+
OpenGL	4.6	+

Peripherals

Specifications and connection of peripherals supported by Core Ultra 7 155H and Celeron J3455E.

PCIe version	5.0	2.0
PCI Express lanes	28	6
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.

Core Ultra 7 155H outperforms Celeron J3455E by 1037% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	16.15	1.42
Recency	14 December 2023	1 July 2019
Threads	22	4
Chip lithography	7 nm	14 nm
Power consumption (TDP)	28 Watt	10 Watt

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Should you still have questions on choice between Core Ultra 7 155H and Celeron J3455E, ask them in Comments section, and we shall answer.

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