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Intel Core Ultra 7 155H vs Apple M3

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CPU comparison with benchmarks


Intel Core Ultra 7 155H CPU1 vs CPU2 Apple M3
Intel Core Ultra 7 155H Apple M3

CPU comparison

Intel Core Ultra 7 155H or Apple M3 - 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 Apple M3 has 8 cores with 8 threads and clocks with a maximum frequency of 4.06 GHz. The CPU supports up to 24 GB of memory in 2 memory channels. The Apple M3 was released in Q4/2023.
Intel Core Ultra 7 (24) Family Apple M series (32)
Intel Core Ultra 100H (5) CPU group Apple M3 (6)
1 Generation 3
Meteor Lake H Architecture M3
Notebook Segment Notebook
-- Predecessor Apple M2
Intel Core Ultra 7 255H Successor Apple M4

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 Apple M3 has 8 CPU cores with a clock frequency of 0.70 GHz (4.06 GHz).
Intel Core Ultra 7 155H Characteristic Apple M3
16 Cores 8
22 Threads 8
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
Yes Hyperthreading No
No Overclocking ? No
1.40 GHz (4.80 GHz)
6x Redwood Cove		 A-Core 0.70 GHz (4.06 GHz)
4x Ibiza P-Core
0.90 GHz (3.80 GHz)
8x Crestmont		 B-Core 0.74 GHz (2.75 GHz)
4x Ibiza E-Core
0.70 GHz (2.50 GHz)
2x Crestmont		 C-Core --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
Intel Core Ultra 7 155H Characteristic Apple M3
Intel® AI Boost AI hardware Apple Neural Engine
Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) AI specifications 16 Neural cores @ 35 TOPS
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

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 Apple M3 (10 Core)
0.60 GHz GPU frequency 0.39 GHz
2.25 GHz GPU (Turbo) 1.40 GHz
-- GPU Generation 3
5 nm Technology 3 nm
4 Max. displays 2
128 Compute units 160
1024 Shader 1280
Yes Hardware Raytracing Yes
No Frame Generation No
32 GB Max. GPU Memory 24 GB
12.2 DirectX Version --

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 Apple M3 (10 Core)
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 Decode / Encode
Decode Codec VP8 Decode
Decode / Encode Codec AV1 Decode
Decode / Encode Codec AVC Decode
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 Apple M3 can connect up to 24 GB of memory in 2 memory channels.
Intel Core Ultra 7 155H Characteristic Apple M3
LPDDR5X-7500, DDR5-5600 Memory LPDDR5-6400
96 GB Max. Memory 24 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 102.4 GB/s
No ECC No
18.00 MB L2 Cache 20.00 MB
24.00 MB L3 Cache --
5.0 PCIe version 4.0
20 PCIe lanes --
78.8 GB/s PCIe Bandwidth --

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 Apple M3 is 22 W.
Intel Core Ultra 7 155H Characteristic Apple M3
28 W TDP (PL1 / PBP) 22 W
115 W TDP (PL2) --
65 W TDP up --
20 W TDP down 15 W
110 °C Tjunction max. 100 °C

Technical details

The Intel Core Ultra 7 155H has a 42.00 MB cache, while the Apple M3 cache has a total of 20.00 MB.
Intel Core Ultra 7 155H Characteristic Apple M3
7 nm Technology 3 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions Rosetta 2 x86-Emulation
BGA 2049 Socket --
VT-x, VT-x EPT, VT-d Virtualization Apple Virtualization Framework
Yes AES-NI Yes
Windows 11, Linux Operating systems macOS, iPadOS
Q4/2023 Release date Q4/2023
-- Release price --
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 4.2 stars (334 ratings). Rate now:
Here you can rate the Apple M3 to help other visitors make their purchasing decisions. The average rating is 4.7 stars (1513 ratings). Rate now:

Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
Intel Core Ultra 7 155H (80%)
Apple M3 (100%)
⌀ Multi core performance in 5 CPU benchmarks
Intel Core Ultra 7 155H (100%)
Apple M3 (76%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
105 (77%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
137 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
991 (100%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
659 (66%)

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
1772 (90%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
1965 (100%)

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
17650 (100%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
10437 (59%)

Geekbench 6 (Single-Core)

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
2294 (73%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
3125 (100%)

Geekbench 6 (Multi-Core)

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz
12749 (100%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
11863 (93%)

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 (81%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
2150 (100%)

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%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
10450 (88%)

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%)
Apple M3 Apple M3
Apple M3 (10 Core) @ 1.40 GHz
3550 (80%)

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%)
Apple M3 Apple M3
8C 8T @ 4.06 GHz
18951 (76%)

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
17,650 CB R23 MC @ 79 W
224 (47%)
Apple M3 Apple M3
10,437 CB R23 MC @ 22 W
474 (100%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 1.40 GHz
0 (0%)
Apple M3 Apple M3
8C 8T @ 0.70 GHz
35 (100%)

Devices using this processor
Intel Core Ultra 7 155H Apple M3
ASUS Zenbook Duo (2024) UX8406 Apple iMac 24 (2023)

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