Intel Atom C3955 vs AMD Ryzen 7 7745HX

Last updated: 2023-11-17

CPU comparison with benchmarks


Intel Atom C3955		AMD Ryzen 7 7745HX
CPU comparison Intel Atom C3955 or AMD Ryzen 7 7745HX - 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 Atom C3955 has 16 cores with 16 threads and clocks with a maximum frequency of 2.40 GHz. Up to 256 GB of memory is supported in 2 memory channels. The Intel Atom C3955 was released in Q3/2017. The AMD Ryzen 7 7745HX has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 7 7745HX was released in Q1/2023.

Intel Atom (108)	Family	AMD Ryzen 7 (68)
Intel Atom C3000 (20)	CPU group	AMD Ryzen 7045 (6)
5	Generation	6
Denverton	Architecture	Dragon Range (Zen 4)
Desktop / Server	Segment	Mobile
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The Intel Atom C3955 has 16 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Atom C3955 is 2.10 GHz (2.40 GHz) while the AMD Ryzen 7 7745HX has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 7 7745HX is at 3.60 GHz (5.10 GHz).
Intel Atom C3955	Characteristic	AMD Ryzen 7 7745HX
16	Cores	8
16	Threads	16
normal	Core architecture	normal
No	Hyperthreading	Yes
No	Overclocking ?	Yes
2.10 GHz	Frequency	3.60 GHz
2.40 GHz	Turbo Frequency (1 Core)	5.10 GHz
2.40 GHz	Turbo Frequency (All Cores)	--

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 Atom C3955	Characteristic	AMD Ryzen 7 7745HX
--	AI hardware	--
--	AI specifications	--

Internal Graphics The Intel Atom C3955 or AMD Ryzen 7 7745HX has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
no iGPU	GPU	AMD Radeon 610M
	GPU frequency	0.40 GHz
--	GPU (Turbo)	2.20 GHz
--	GPU Generation	9
	Technology	6 nm
	Max. displays	3
--	Compute units	2
--	Shader	128
No	Hardware Raytracing	Yes
No	Frame Generation	No
--	Max. GPU Memory	8 GB
--	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.
no iGPU	GPU	AMD Radeon 610M
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 / Encode
No	Codec VP8	Decode / Encode
No	Codec AV1	Decode
No	Codec AVC	Decode / Encode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe The Intel Atom C3955 can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 38.4 GB/s. The AMD Ryzen 7 7745HX supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s.
Intel Atom C3955	Characteristic	AMD Ryzen 7 7745HX
DDR4-2400	Memory	DDR5-5200
256 GB	Max. Memory	128 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
38.4 GB/s	Max. Bandwidth	83.2 GB/s
Yes	ECC	Yes
16.00 MB	L2 Cache	8.00 MB
--	L3 Cache	32.00 MB
3.0	PCIe version	5.0
16	PCIe lanes	28
15.8 GB/s	PCIe Bandwidth	110.3 GB/s
Thermal Management The thermal design power (TDP for short) of the Intel Atom C3955 is 32 W, while the AMD Ryzen 7 7745HX has a TDP of 55 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Atom C3955	Characteristic	AMD Ryzen 7 7745HX
32 W	TDP (PL1 / PBP)	55 W
--	TDP (PL2)	--
--	TDP up	75 W
--	TDP down	45 W
100 °C	Tjunction max.	100 °C
Technical details The Intel Atom C3955 is manufactured in 14 nm and has 16.00 MB cache. The AMD Ryzen 7 7745HX is manufactured in 5 nm and has a 40.00 MB cache.
Intel Atom C3955	Characteristic	AMD Ryzen 7 7745HX
14 nm	Technology	5 nm
Monolithic	Chip design	Chiplet
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4.1, SSE4.2	ISA extensions	SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
BGA 1310	Socket	FL1
VT-x, VT-x EPT, VT-d	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Windows 11, Linux
Q3/2017	Release date	Q1/2023
434 $	Release price	--

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Intel Atom C3955 16C 16T @ 2.10 GHz (2.40 GHz) buy now on Amazon and save! AMD Ryzen 7 7745HX 8C 16T @ 3.60 GHz (5.10 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks

Intel Atom C3955 (19%)

AMD Ryzen 7 7745HX (100%)

⌀ Multi core performance in 1 CPU benchmarks

Intel Atom C3955 (38%)

AMD Ryzen 7 7745HX (100%)

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 Atom C3955 16C 16T @ 2.40 GHz	387 (19%)
	AMD Ryzen 7 7745HX 8C 16T @ 5.10 GHz	2002 (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 Atom C3955 16C 16T @ 2.40 GHz	4896 (38%)
	AMD Ryzen 7 7745HX 8C 16T @ 3.60 GHz	12744 (100%)

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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 5.10 GHz	107 (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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 5.10 GHz	929 (100%)

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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 5.10 GHz	1842 (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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 3.60 GHz	18065 (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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 5.10 GHz	2674 (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 Atom C3955 16C 16T @ 2.40 GHz	0 (0%)
	AMD Ryzen 7 7745HX 8C 16T @ 3.60 GHz	13452 (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.


	Intel Atom C3955 @ 0.00 GHz	0 (0%)
	AMD Ryzen 7 7745HX AMD Radeon 610M @ 2.20 GHz	443 (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 Atom C3955 2.10 GHz	0 (0%)
	AMD Ryzen 7 7745HX 18,065 CB R23 MC @ 143 W	126 (100%)

Devices using this processor
Intel Atom C3955	AMD Ryzen 7 7745HX
Unknown	Unknown

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