Intel Core Ultra 7 155H vs Intel Core i9-12900H

Last updated: 2024-04-03

CPU comparison with benchmarks


Intel Core Ultra 7 155H		Intel Core i9-12900H
CPU comparison Intel Core Ultra 7 155H or Intel Core i9-12900H - 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 Core i9-12900H has 14 cores with 20 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i9-12900H was released in Q1/2022.

Intel Core Ultra 7 (9)	Family	Intel Core i9 (78)
Intel Core Ultra 100H (5)	CPU group	Intel Core i 12000H (23)
1	Generation	12
Meteor Lake H	Architecture	Alder Lake H
Mobile	Segment	Mobile
--	Predecessor	Intel Core i9-11900H
--	Successor	Intel Core i9-13900H

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 Core i9-12900H has 14 CPU cores with a clock frequency of 2.50 GHz (5.00 GHz).
Intel Core Ultra 7 155H	Characteristic	Intel Core i9-12900H
16	Cores	14
22	Threads	20
hybrid (big.LITTLE)	Core architecture	hybrid (big.LITTLE)
Yes	Hyperthreading	Yes
No	Overclocking ?	No
1.40 GHz (4.80 GHz) 6x Redwood Cove	A-Core	2.50 GHz (5.00 GHz) 6x Golden Cove
0.90 GHz (3.80 GHz) 8x Crestmont	B-Core	1.80 GHz (3.80 GHz) 8x Gracemont
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 Core i9-12900H
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 Iris Xe Graphics 96 (Alder Lake)
0.60 GHz	GPU frequency	0.40 GHz
2.25 GHz	GPU (Turbo)	1.45 GHz
--	GPU Generation	13
5 nm	Technology	10 nm
4	Max. displays	4
128	Compute units	96
1024	Shader	768
Yes	Hardware Raytracing	No
No	Frame Generation	No
32 GB	Max. GPU Memory	32 GB
12.2	DirectX Version	12.1

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 Iris Xe Graphics 96 (Alder Lake)
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 / 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 Core i9-12900H can connect up to 64 GB of memory in 2 memory channels.
Intel Core Ultra 7 155H	Characteristic	Intel Core i9-12900H
LPDDR5X-7500, DDR5-5600	Memory	LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200
96 GB	Max. Memory	64 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
120.0 GB/s	Max. Bandwidth	83.2 GB/s
No	ECC	No
18.00 MB	L2 Cache	11.50 MB
24.00 MB	L3 Cache	24.00 MB
5.0	PCIe version	4.0
20	PCIe lanes	28
78.8 GB/s	PCIe Bandwidth	55.1 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 Core i9-12900H is 45 W.
Intel Core Ultra 7 155H	Characteristic	Intel Core i9-12900H
28 W	TDP (PL1 / PBP)	45 W
115 W	TDP (PL2)	115 W
65 W	TDP up	--
20 W	TDP down	--
110 °C	Tjunction max.	100 °C
Technical details The Intel Core Ultra 7 155H has a 42.00 MB cache, while the Intel Core i9-12900H cache has a total of 35.50 MB.
Intel Core Ultra 7 155H	Characteristic	Intel Core i9-12900H
7 nm	Technology	10 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, AVX2, AVX2+
BGA 2049	Socket	BGA 1744
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, Windows 11, Linux
Q4/2023	Release date	Q1/2022
--	Release price	617 $

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Intel Core Ultra 7 155H 16C 22T @ 1.40 GHz (4.80 GHz) buy now on Amazon and save! Intel Core i9-12900H 14C 20T @ 2.50 GHz (5.00 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

Intel Core Ultra 7 155H (96%)

Intel Core i9-12900H (100%)

⌀ Multi core performance in 4 CPU benchmarks

Intel Core Ultra 7 155H (97%)

Intel Core i9-12900H (98%)

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 16C 22T @ 4.80 GHz	1761 (92%)
	Intel Core i9-12900H 14C 20T @ 5.00 GHz	1917 (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 16C 22T @ 4.20 GHz	16825 (100%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	16555 (98%)

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 16C 22T @ 4.80 GHz	1746 (100%)
	Intel Core i9-12900H 14C 20T @ 5.00 GHz	1754 (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 16C 22T @ 4.20 GHz	11878 (94%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	12662 (100%)

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 16C 22T @ 4.80 GHz	2294 (95%)
	Intel Core i9-12900H 14C 20T @ 5.00 GHz	2426 (100%)

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 16C 22T @ 4.20 GHz	12749 (100%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	11894 (93%)

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 Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) @ 2.25 GHz	4460 (100%)
	Intel Core i9-12900H Intel Iris Xe Graphics 96 (Alder Lake) @ 1.45 GHz	2223 (50%)

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 16C 22T @ 4.20 GHz	24916 (92%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	27130 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 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 16C 22T @ 4.80 GHz	0 (0%)
	Intel Core i9-12900H 14C 20T @ 5.00 GHz	734 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 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 16C 22T @ 4.20 GHz	0 (0%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	6371 (100%)

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 16C 22T @ 4.20 GHz	0 (0%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	251 (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 16C 22T @ 4.80 GHz	0 (0%)
	Intel Core i9-12900H 14C 20T @ 5.00 GHz	257 (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 16C 22T @ 4.20 GHz	0 (0%)
	Intel Core i9-12900H 14C 20T @ 3.80 GHz	2639 (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 16,825 CB R23 MC @ 75 W	224 (100%)
	Intel Core i9-12900H 2.50 GHz	0 (0%)

Devices using this processor
Intel Core Ultra 7 155H	Intel Core i9-12900H
ASUS Zenbook Duo (2024) UX8406	Unknown

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