AMD Phenom II X2 B55 vs Intel Core Ultra 7 155U Benchmark, comparison and differences


AMD Phenom II X2 B55		Intel Core Ultra 7 155U
CPU comparison In this CPU comparison, we compare the AMD Phenom II X2 B55 and the Intel Core Ultra 7 155U and use benchmarks to check which processor is faster. We compare the AMD Phenom II X2 B55 2 core processor released in Q4/2009 with the Intel Core Ultra 7 155U which has 12 CPU cores and was introduced in Q4/2023.

AMD Phenom II (52)	Family	Intel Core Ultra 7 (9)
AMD Phenom II - 545 (9)	CPU group	Intel Core Ultra 100U (7)
2	Generation	1
Callisto (K10)	Architecture	Meteor Lake U
Desktop / Server	Segment	Mobile
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Phenom II X2 B55 is a 2 core processor with a clock frequency of 3.00 GHz. The processor can compute 2 threads at the same time. The Intel Core Ultra 7 155U clocks with 1.70 GHz (4.80 GHz), has 12 CPU cores and can calculate 14 threads in parallel.
AMD Phenom II X2 B55	Characteristic	Intel Core Ultra 7 155U
2	Cores	12
2	Threads	14
normal	Core architecture	hybrid (big.LITTLE)
No	Hyperthreading	Yes
Yes	Overclocking ?	No
3.00 GHz	A-Core	1.70 GHz (4.80 GHz) 2x Redwood Cove
--	B-Core	1.20 GHz (3.80 GHz) 8x Crestmont
--	C-Core	0.70 GHz (2.10 GHz) 2x Crestmont
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.
AMD Phenom II X2 B55	Characteristic	Intel Core Ultra 7 155U
--	AI hardware	Intel AI engine
--	AI specifications	Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT)

Internal Graphics Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.
no iGPU	GPU	Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
	GPU frequency	0.60 GHz
--	GPU (Turbo)	1.95 GHz
--	GPU Generation	--
	Technology	5 nm
	Max. displays	4
--	Compute units	64
--	Shader	512
No	Hardware Raytracing	Yes
No	Frame Generation	No
--	Max. GPU Memory	32 GB
--	DirectX Version	12.2

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.
no iGPU	GPU	Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
No	Codec h265 / HEVC (8 bit)	Decode / Encode
No	Codec h265 / HEVC (10 bit)	Decode / Encode
No	Codec h264	Decode / Encode
No	Codec VP9	Decode
No	Codec VP8	Decode
No	Codec AV1	Decode / Encode
No	Codec AVC	Decode / Encode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe Up to GB of memory in a maximum of 2 memory channels is supported by the AMD Phenom II X2 B55, while the Intel Core Ultra 7 155U supports a maximum of 96 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.
AMD Phenom II X2 B55	Characteristic	Intel Core Ultra 7 155U
DDR3-1333, DDR2-1066	Memory	LPDDR5X-7500, DDR5-5600
	Max. Memory	96 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
21.3 GB/s	Max. Bandwidth	120.0 GB/s
No	ECC	No
--	L2 Cache	12.00 MB
6.00 MB	L3 Cache	--
--	PCIe version	4.0
--	PCIe lanes	20
--	PCIe Bandwidth	39.4 GB/s
Thermal Management The AMD Phenom II X2 B55 has a TDP of 80 W. The TDP of the Intel Core Ultra 7 155U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
AMD Phenom II X2 B55	Characteristic	Intel Core Ultra 7 155U
80 W	TDP (PL1 / PBP)	15 W
--	TDP (PL2)	57 W
--	TDP up	28 W
--	TDP down	12 W
--	Tjunction max.	110 °C
Technical details The AMD Phenom II X2 B55 has 6.00 MB cache and is manufactured in 45 nm. The cache of Intel Core Ultra 7 155U is at 12.00 MB. The processor is manufactured in 7 nm.
AMD Phenom II X2 B55	Characteristic	Intel Core Ultra 7 155U
45 nm	Technology	7 nm
Unknown	Chip design	Chiplet
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE3, SSE4a	ISA extensions	SSE4.1, SSE4.2, AVX2
AM3	Socket	BGA 2049
AMD-V	Virtualization	VT-x, VT-x EPT, VT-d
No	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 11, Linux
Q4/2009	Release date	Q4/2023
--	Release price	--

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AMD Phenom II X2 B55 2C 2T @ 3.00 GHz buy now on Amazon and save! Intel Core Ultra 7 155U 12C 14T @ 1.70 GHz (4.80 GHz) buy now on Amazon and save!

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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.


	AMD Phenom II X2 B55 2C 2T @ 3.00 GHz	0 (0%)
	Intel Core Ultra 7 155U 12C 14T @ 4.80 GHz	2354 (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.


	AMD Phenom II X2 B55 2C 2T @ 3.00 GHz	0 (0%)
	Intel Core Ultra 7 155U 12C 14T @ 1.70 GHz	9716 (100%)

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.


	AMD Phenom II X2 B55 @ 0.00 GHz	0 (0%)
	Intel Core Ultra 7 155U Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.95 GHz	1935 (100%)

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.


	AMD Phenom II X2 B55 2C 2T @ 3.00 GHz	1931 (100%)
	Intel Core Ultra 7 155U 12C 14T @ 1.70 GHz	0 (0%)

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.


	AMD Phenom II X2 B55 2C 2T @ 3.00 GHz	79 (100%)
	Intel Core Ultra 7 155U 12C 14T @ 4.80 GHz	0 (0%)

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.


	AMD Phenom II X2 B55 2C 2T @ 3.00 GHz	152 (100%)
	Intel Core Ultra 7 155U 12C 14T @ 1.70 GHz	0 (0%)


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AMD Phenom II X2 B55 vs Intel Core Ultra 7 155U

CPU comparison with benchmarks

CPU comparison

CPU Cores and Base Frequency

Artificial Intelligence and Machine Learning

Internal Graphics

Hardware codec support

Memory & PCIe

Thermal Management

Technical details