Intel Core i9-11900KB vs AMD A8-5550M

Last updated: 2023-03-31

CPU comparison with benchmarks


Intel Core i9-11900KB		AMD A8-5550M
CPU comparison Intel Core i9-11900KB or AMD A8-5550M - 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 i9-11900KB has 8 cores with 16 threads and clocks with a maximum frequency of 5.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-11900KB was released in Q2/2021. The AMD A8-5550M has 4 cores with 4 threads and clocks with a maximum frequency of 3.10 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A8-5550M was released in Q2/2013.

Intel Core i9 (78)	Family	AMD A (112)
Intel Core i 11000H (17)	CPU group	AMD A8-5000M (3)
11	Generation	3
Tiger Lake H	Architecture	Richland (Piledriver)
Mobile	Segment	Mobile
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The Intel Core i9-11900KB is a 8 core processor with a clock frequency of 3.30 GHz (5.30 GHz). The AMD A8-5550M has 4 CPU cores with a clock frequency of 2.10 GHz (3.10 GHz).
Intel Core i9-11900KB	Characteristic	AMD A8-5550M
8	Cores	4
16	Threads	4
normal	Core architecture	normal
Yes	Hyperthreading	No
Yes	Overclocking ?	No
3.30 GHz	Frequency	2.10 GHz
5.30 GHz	Turbo Frequency (1 Core)	3.10 GHz
4.90 GHz	Turbo Frequency (All Cores)	3.10 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.
Intel Core i9-11900KB	Characteristic	AMD A8-5550M
--	AI hardware	--
--	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 UHD Graphics 11th Gen (32 EU)	GPU	AMD Radeon HD 8550G
0.35 GHz	GPU frequency	0.52 GHz
1.45 GHz	GPU (Turbo)	0.72 GHz
11	GPU Generation	5
10 nm	Technology	32 nm
3	Max. displays	2
32	Compute units	4
256	Shader	256
No	Hardware Raytracing	No
No	Frame Generation	No
64 GB	Max. GPU Memory	2 GB
12	DirectX Version	11

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 UHD Graphics 11th Gen (32 EU)	GPU	AMD Radeon HD 8550G
Decode / Encode	Codec h265 / HEVC (8 bit)	No
Decode / Encode	Codec h265 / HEVC (10 bit)	No
Decode / Encode	Codec h264	Decode
Decode / Encode	Codec VP9	No
Decode / Encode	Codec VP8	No
Decode	Codec AV1	No
Decode / Encode	Codec AVC	Decode
Decode	Codec VC-1	Decode
Decode / Encode	Codec JPEG	Decode / Encode

Memory & PCIe The Intel Core i9-11900KB supports a maximum of 128 GB of memory in 2 memory channels. The AMD A8-5550M can connect up to GB of memory in 2 memory channels.
Intel Core i9-11900KB	Characteristic	AMD A8-5550M
DDR4-3200	Memory	DDR3-1600
128 GB	Max. Memory
2 (Dual Channel)	Memory channels	2 (Dual Channel)
51.2 GB/s	Max. Bandwidth	25.6 GB/s
No	ECC	No
4.00 MB	L2 Cache	--
20.00 MB	L3 Cache	4.00 MB
3.0	PCIe version	--
16	PCIe lanes	--
15.8 GB/s	PCIe Bandwidth	--
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i9-11900KB has a TDP of 65 W, that of the AMD A8-5550M is 35 W.
Intel Core i9-11900KB	Characteristic	AMD A8-5550M
65 W	TDP (PL1 / PBP)	35 W
--	TDP (PL2)	--
--	TDP up	--
55 W	TDP down	--
100 °C	Tjunction max.	--
Technical details The Intel Core i9-11900KB has a 24.00 MB cache, while the AMD A8-5550M cache has a total of 4.00 MB.
Intel Core i9-11900KB	Characteristic	AMD A8-5550M
10 nm	Technology	32 nm
Monolithic	Chip design	Unknown
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512	ISA extensions	SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
BGA 1787	Socket	FS1r2
VT-x, VT-x EPT, VT-d	Virtualization	AMD-V
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems
Q2/2021	Release date	Q2/2013
583 $	Release price	--

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Intel Core i9-11900KB 8C 16T @ 3.30 GHz (5.30 GHz) buy now on Amazon and save! AMD A8-5550M 4C 4T @ 2.10 GHz (3.10 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks

Intel Core i9-11900KB (100%)

AMD A8-5550M (20%)

⌀ Multi core performance in 1 CPU benchmarks

Intel Core i9-11900KB (100%)

AMD A8-5550M (13%)

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 i9-11900KB 8C 16T @ 5.30 GHz	1878 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	381 (20%)

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 i9-11900KB Intel UHD Graphics 11th Gen (32 EU) @ 1.45 GHz	742 (100%)
	AMD A8-5550M AMD Radeon HD 8550G @ 0.72 GHz	369 (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 i9-11900KB 8C 16T @ 4.90 GHz	23151 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	3093 (13%)

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 i9-11900KB 8C 16T @ 5.30 GHz	1663 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	0 (0%)

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 i9-11900KB 8C 16T @ 4.90 GHz	12264 (100%)
	AMD A8-5550M 4C 4T @ 3.10 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.


	Intel Core i9-11900KB 8C 16T @ 4.90 GHz	0 (0%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	947 (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 i9-11900KB 8C 16T @ 5.30 GHz	2231 (100%)
	AMD A8-5550M 4C 4T @ 3.10 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.


	Intel Core i9-11900KB 8C 16T @ 4.90 GHz	10645 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	0 (0%)

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 i9-11900KB 8C 16T @ 5.30 GHz	640 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	0 (0%)

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 i9-11900KB 8C 16T @ 4.90 GHz	4712 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	0 (0%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.


	Intel Core i9-11900KB 8C 16T @ 4.90 GHz	200 (100%)
	AMD A8-5550M 4C 4T @ 3.10 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.


	Intel Core i9-11900KB 8C 16T @ 5.30 GHz	256 (100%)
	AMD A8-5550M 4C 4T @ 3.10 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.


	Intel Core i9-11900KB 8C 16T @ 4.90 GHz	2144 (100%)
	AMD A8-5550M 4C 4T @ 3.10 GHz	0 (0%)

Devices using this processor
Intel Core i9-11900KB	AMD A8-5550M
Unknown	Unknown

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