Intel Core Ultra 7 155H vs Intel Celeron J3455

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CPU comparison with benchmarks


Intel Core Ultra 7 155H CPU1 vs CPU2 Intel Celeron J3455
Intel Core Ultra 7 155H Intel Celeron J3455

CPU comparison

Intel Core Ultra 7 155H or Intel Celeron J3455 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core Ultra 7 155H has 16 cores with 22 threads and clocks with a maximum frequency of 4.80 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core Ultra 7 155H was released in Q4/2023.

The Intel Celeron J3455 has 4 cores with 4 threads and clocks with a maximum frequency of 2.30 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Intel Celeron J3455 was released in Q3/2016.
Intel Core Ultra 7 (9) Family Intel Celeron (165)
Intel Core Ultra 100H (5) CPU group Intel Celeron J3000 (4)
1 Generation 7
Meteor Lake H Architecture Apollo Lake
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core Ultra 7 155H is a 16 core processor with a clock frequency of 1.40 GHz (4.80 GHz). The Intel Celeron J3455 has 4 CPU cores with a clock frequency of 1.50 GHz (2.30 GHz).
Intel Core Ultra 7 155H Characteristic Intel Celeron J3455
16 Cores 4
22 Threads 4
hybrid (big.LITTLE) Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
1.40 GHz (4.80 GHz)
6x Redwood Cove		 A-Core 1.50 GHz (2.30 GHz)
0.90 GHz (3.80 GHz)
8x Crestmont		 B-Core --
0.70 GHz (2.50 GHz)
2x Crestmont		 C-Core --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
Intel Core Ultra 7 155H Characteristic Intel Celeron J3455
Intel AI engine AI hardware --
Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) GPU Intel HD Graphics 500
0.60 GHz GPU frequency 0.25 GHz
2.25 GHz GPU (Turbo) 0.75 GHz
-- GPU Generation 9
5 nm Technology 14 nm
4 Max. displays 3
128 Compute units 12
1024 Shader 96
Yes Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 8 GB
12.2 DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) GPU Intel HD Graphics 500
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 Decode
Decode Codec VP8 Decode / Encode
Decode / Encode Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core Ultra 7 155H supports a maximum of 96 GB of memory in 2 memory channels. The Intel Celeron J3455 can connect up to 8 GB of memory in 2 memory channels.
Intel Core Ultra 7 155H Characteristic Intel Celeron J3455
LPDDR5X-7500, DDR5-5600 Memory LPDDR4-2400, LPDDR3-1866, DDR3L-1866
96 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 29.9 GB/s
No ECC No
18.00 MB L2 Cache --
24.00 MB L3 Cache 2.00 MB
5.0 PCIe version 2.0
20 PCIe lanes 6
78.8 GB/s PCIe Bandwidth 3.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core Ultra 7 155H has a TDP of 28 W, that of the Intel Celeron J3455 is 10 W.
Intel Core Ultra 7 155H Characteristic Intel Celeron J3455
28 W TDP (PL1 / PBP) 10 W
115 W TDP (PL2) --
65 W TDP up --
20 W TDP down --
110 °C Tjunction max. 105 °C

Technical details

The Intel Core Ultra 7 155H has a 42.00 MB cache, while the Intel Celeron J3455 cache has a total of 2.00 MB.
Intel Core Ultra 7 155H Characteristic Intel Celeron J3455
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2
BGA 2049 Socket BGA 1296
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 11, Linux Operating systems Windows 10, Linux
Q4/2023 Release date Q3/2016
-- Release price 31 $
show more data show more data


Rate these processors

Here you can rate the Intel Core Ultra 7 155H to help other visitors make their purchasing decisions. The average rating is 4.3 stars (82 ratings). Rate now:
Here you can rate the Intel Celeron J3455 to help other visitors make their purchasing decisions. The average rating is 4.5 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Core Ultra 7 155H (100%)
Intel Celeron J3455 (16%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core Ultra 7 155H (100%)
Intel Celeron J3455 (9%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
1746 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.30 GHz
331 (19%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
11878 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
1224 (10%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
2294 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.30 GHz
292 (13%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
12749 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
874 (7%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) @ 2.25 GHz
4460 (100%)
Intel Celeron J3455 Intel Celeron J3455
Intel HD Graphics 500 @ 0.75 GHz
144 (3%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
24916 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
2255 (9%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
1761 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.30 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
16825 (100%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
0 (0%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
11 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
0 (0%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.30 GHz
47 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
0 (0%)
Intel Celeron J3455 Intel Celeron J3455
4C 4T @ 2.20 GHz
181 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16,825 CB R23 MC @ 75 W
224 (100%)
Intel Celeron J3455 Intel Celeron J3455
1.50 GHz
0 (0%)

Devices using this processor
Intel Core Ultra 7 155H Intel Celeron J3455
ASUS Zenbook Duo (2024) UX8406 ASRock J3455-ITX
Gigabyte GA-J3455N-D3H
ASRock Beebox J3455
Intel NUC Kit NUC6CAYH
Gigabyte Brix GB-BPCE-3455
TerraMaster J3455

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