AMD Ryzen 5 8540U vs AMD A4-9120C

Last updated: 2024-04-12

CPU comparison with benchmarks


AMD Ryzen 5 8540U		AMD A4-9120C
CPU comparison AMD Ryzen 5 8540U or AMD A4-9120C - 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 AMD Ryzen 5 8540U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 5 8540U was released in Q1/2024. The AMD A4-9120C has 2 cores with 2 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 8 GB of memory in 1 memory channels. The AMD A4-9120C was released in Q1/2019.

AMD Ryzen 5 (85)	Family	AMD A (112)
AMD Ryzen 8040 (20)	CPU group	AMD A4-9000 (2)
7	Generation	6
Hawk Point (Zen 4)	Architecture	Stoney Ridge (Excavator)
Mobile	Segment	Mobile
AMD Ryzen 5 7540U	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Ryzen 5 8540U has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the AMD Ryzen 5 8540U is 3.20 GHz (4.90 GHz) while the AMD A4-9120C has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A4-9120C is at 1.60 GHz (2.40 GHz).
AMD Ryzen 5 8540U	Characteristic	AMD A4-9120C
6	Cores	2
12	Threads	2
normal	Core architecture	normal
Yes	Hyperthreading	No
No	Overclocking ?	No
3.20 GHz	Frequency	1.60 GHz
4.90 GHz	Turbo Frequency (1 Core)	2.40 GHz
--	Turbo Frequency (All Cores)	2.00 GHz

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 Ryzen 5 8540U	Characteristic	AMD A4-9120C
--	AI hardware	--
--	AI specifications	--

Internal Graphics The AMD Ryzen 5 8540U or AMD A4-9120C 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.
AMD Radeon 740M	GPU	AMD Radeon R4 (Stoney Ridge)
0.80 GHz	GPU frequency	0.60 GHz
2.50 GHz	GPU (Turbo)	--
10	GPU Generation	7
4 nm	Technology	28 nm
4	Max. displays	3
4	Compute units	3
256	Shader	192
Yes	Hardware Raytracing	No
AMD FSR	Frame Generation	No
32 GB	Max. GPU Memory	2 GB
12	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.
AMD Radeon 740M	GPU	AMD Radeon R4 (Stoney Ridge)
Decode / Encode	Codec h265 / HEVC (8 bit)	Decode
Decode / Encode	Codec h265 / HEVC (10 bit)	Decode
Decode / Encode	Codec h264	Decode
Decode	Codec VP9	Decode
Decode	Codec VP8	Decode
Decode / Encode	Codec AV1	No
Decode	Codec AVC	Decode / Encode
Decode	Codec VC-1	Decode
Decode / Encode	Codec JPEG	Decode / Encode

Memory & PCIe The AMD Ryzen 5 8540U can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The AMD A4-9120C supports up to 8 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 15.0 GB/s.
AMD Ryzen 5 8540U	Characteristic	AMD A4-9120C
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500	Memory	DDR4-1866
256 GB	Max. Memory	8 GB
2 (Dual Channel)	Memory channels	1 (Single Channel)
120.0 GB/s	Max. Bandwidth	15.0 GB/s
Yes	ECC	No
6.00 MB	L2 Cache	--
16.00 MB	L3 Cache	2.00 MB
4.0	PCIe version	3.0
20	PCIe lanes	8
39.4 GB/s	PCIe Bandwidth	7.9 GB/s
Thermal Management The thermal design power (TDP for short) of the AMD Ryzen 5 8540U is 28 W, while the AMD A4-9120C has a TDP of 6 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD Ryzen 5 8540U	Characteristic	AMD A4-9120C
28 W	TDP (PL1 / PBP)	6 W
--	TDP (PL2)	--
30 W	TDP up	--
15 W	TDP down	--
100 °C	Tjunction max.	90 °C
Technical details The AMD Ryzen 5 8540U is manufactured in 4 nm and has 22.00 MB cache. The AMD A4-9120C is manufactured in 28 nm and has a 2.00 MB cache.
AMD Ryzen 5 8540U	Characteristic	AMD A4-9120C
4 nm	Technology	28 nm
Monolithic	Chip design	Unknown
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512	ISA extensions	SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
FP8	Socket	FP4
AMD-V, SVM	Virtualization	AMD-V
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems
Q1/2024	Release date	Q1/2019
--	Release price	--

show more data		show more data

AMD Ryzen 5 8540U 6C 12T @ 3.20 GHz (4.90 GHz) buy now on Amazon and save! AMD A4-9120C 2C 2T @ 1.60 GHz (2.40 GHz) buy now on Amazon and save!

Rate these processors

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 Ryzen 5 8540U AMD Radeon 740M @ 2.50 GHz	1280 (100%)
	AMD A4-9120C AMD Radeon R4 (Stoney Ridge) @ 0.60 GHz	230 (18%)

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.


	AMD Ryzen 5 8540U 6C 12T @ 4.90 GHz	1700 (100%)
	AMD A4-9120C 2C 2T @ 2.40 GHz	0 (0%)

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.


	AMD Ryzen 5 8540U 6C 12T @ 3.20 GHz	6915 (100%)
	AMD A4-9120C 2C 2T @ 2.00 GHz	0 (0%)

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 Ryzen 5 8540U 6C 12T @ 4.90 GHz	2402 (100%)
	AMD A4-9120C 2C 2T @ 2.40 GHz	0 (0%)

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 Ryzen 5 8540U 6C 12T @ 3.20 GHz	7841 (100%)
	AMD A4-9120C 2C 2T @ 2.00 GHz	0 (0%)

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 Ryzen 5 8540U 6C 12T @ 3.20 GHz	0 (0%)
	AMD A4-9120C 2C 2T @ 2.00 GHz	1545 (100%)

Devices using this processor
AMD Ryzen 5 8540U	AMD A4-9120C
Unknown	Unknown

Popular comparisons containing this CPUs


1.		Intel Celeron N4020 vs AMD A4-9120C
2.		Intel Celeron N4000 vs AMD A4-9120C
3.		AMD A4-9120C vs Intel Core i3-4330TE
4.		Intel Celeron N3350 vs AMD A4-9120C
5.		AMD A4-9120 vs AMD A4-9120C
6.		Intel Celeron N4500 vs AMD A4-9120C
7.		AMD A4-9120C vs AMD Athlon Silver 3050U
8.		AMD A4-9120C vs Intel Celeron N4100
9.		AMD A6-9220C vs AMD A4-9120C
10.		AMD A4-9120C vs AMD Ryzen 5 3500U