Intel Atom x5-Z8300 vs Intel Core i5-8265U

Last updated: 2023-08-11

CPU comparison with benchmarks


Intel Atom x5-Z8300		Intel Core i5-8265U
CPU comparison Intel Atom x5-Z8300 or Intel Core i5-8265U - 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 x5-Z8300 has 4 cores with 4 threads and clocks with a maximum frequency of 1.84 GHz. Up to 2 GB of memory is supported in 1 memory channels. The Intel Atom x5-Z8300 was released in Q2/2015. The Intel Core i5-8265U has 4 cores with 8 threads and clocks with a maximum frequency of 3.90 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i5-8265U was released in Q3/2018.

Intel Atom (108)	Family	Intel Core i5 (331)
Intel Atom x3/x5/x7 (9)	CPU group	Intel Core i 8000U (WL) (8)
5	Generation	8
Cherry Trail	Architecture	Whiskey Lake U
Mobile	Segment	Mobile
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The Intel Atom x5-Z8300 is a 4 core processor with a clock frequency of 1.44 GHz (1.84 GHz). The Intel Core i5-8265U has 4 CPU cores with a clock frequency of 1.60 GHz (3.90 GHz).
Intel Atom x5-Z8300	Characteristic	Intel Core i5-8265U
4	Cores	4
4	Threads	8
normal	Core architecture	normal
No	Hyperthreading	Yes
No	Overclocking ?	No
1.44 GHz	Frequency	1.60 GHz
1.84 GHz	Turbo Frequency (1 Core)	3.90 GHz
1.84 GHz	Turbo Frequency (All Cores)	2.30 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 Atom x5-Z8300	Characteristic	Intel Core i5-8265U
--	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 HD Graphics 400	GPU	Intel UHD Graphics 620
0.20 GHz	GPU frequency	0.30 GHz
0.50 GHz	GPU (Turbo)	1.10 GHz
8	GPU Generation	9.5
14 nm	Technology	14 nm
3	Max. displays	3
12	Compute units	24
96	Shader	192
No	Hardware Raytracing	No
No	Frame Generation	No
8 GB	Max. GPU Memory	16 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.
Intel HD Graphics 400	GPU	Intel UHD Graphics 620
No	Codec h265 / HEVC (8 bit)	Decode / Encode
No	Codec h265 / HEVC (10 bit)	Decode / Encode
Decode / Encode	Codec h264	Decode / Encode
No	Codec VP9	Decode / Encode
Decode	Codec VP8	Decode / Encode
No	Codec AV1	No
Decode / Encode	Codec AVC	Decode / Encode
Decode	Codec VC-1	Decode
Decode	Codec JPEG	Decode / Encode

Memory & PCIe The Intel Atom x5-Z8300 supports a maximum of 2 GB of memory in 1 memory channels. The Intel Core i5-8265U can connect up to 32 GB of memory in 2 memory channels.
Intel Atom x5-Z8300	Characteristic	Intel Core i5-8265U
DDR3L-1600	Memory	DDR4-2400
2 GB	Max. Memory	32 GB
1 (Single Channel)	Memory channels	2 (Dual Channel)
12.8 GB/s	Max. Bandwidth	38.4 GB/s
No	ECC	No
--	L2 Cache	--
2.00 MB	L3 Cache	6.00 MB
2.0	PCIe version	3.0
1	PCIe lanes	16
0.5 GB/s	PCIe Bandwidth	15.8 GB/s
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom x5-Z8300 has a TDP of 2 W, that of the Intel Core i5-8265U is 15 W.
Intel Atom x5-Z8300	Characteristic	Intel Core i5-8265U
2 W	TDP (PL1 / PBP)	15 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
--	Tjunction max.	--
Technical details The Intel Atom x5-Z8300 has a 2.00 MB cache, while the Intel Core i5-8265U cache has a total of 6.00 MB.
Intel Atom x5-Z8300	Characteristic	Intel Core i5-8265U
14 nm	Technology	14 nm
Monolithic	Chip design	Monolithic
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4.1, SSE4.2	ISA extensions	SSE4.1, SSE4.2, AVX2
BGA 138	Socket	BGA 1356
VT-x, VT-x EPT	Virtualization	VT-x, VT-x EPT, VT-d
Yes	AES-NI	Yes
	Operating systems	Windows 10, Windows 11, Linux
Q2/2015	Release date	Q3/2018
18 $	Release price	385 $

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Intel Atom x5-Z8300 4C 4T @ 1.44 GHz (1.84 GHz) buy now on Amazon and save! Intel Core i5-8265U 4C 8T @ 1.60 GHz (3.90 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

Intel Atom x5-Z8300 (16%)

Intel Core i5-8265U (100%)

⌀ Multi core performance in 4 CPU benchmarks

Intel Atom x5-Z8300 (16%)

Intel Core i5-8265U (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 x5-Z8300 4C 4T @ 1.84 GHz	182 (20%)
	Intel Core i5-8265U 4C 8T @ 3.90 GHz	909 (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 x5-Z8300 4C 4T @ 1.84 GHz	556 (20%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	2806 (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 x5-Z8300 4C 4T @ 1.84 GHz	139 (11%)
	Intel Core i5-8265U 4C 8T @ 3.90 GHz	1286 (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 x5-Z8300 4C 4T @ 1.84 GHz	396 (12%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	3267 (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 x5-Z8300 Intel HD Graphics 400 @ 0.50 GHz	105 (25%)
	Intel Core i5-8265U Intel UHD Graphics 620 @ 1.10 GHz	422 (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.


	Intel Atom x5-Z8300 4C 4T @ 1.84 GHz	816 (13%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	6062 (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 Atom x5-Z8300 4C 4T @ 1.84 GHz	31 (18%)
	Intel Core i5-8265U 4C 8T @ 3.90 GHz	171 (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 Atom x5-Z8300 4C 4T @ 1.84 GHz	111 (20%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	549 (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 x5-Z8300 4C 4T @ 1.84 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 3.90 GHz	606 (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 x5-Z8300 4C 4T @ 1.84 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	1674 (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 Atom x5-Z8300 4C 4T @ 1.84 GHz	47 (100%)
	Intel Core i5-8265U 4C 8T @ 3.90 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 Atom x5-Z8300 4C 4T @ 1.84 GHz	127 (100%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	0 (0%)

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 Atom x5-Z8300 4C 4T @ 1.84 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	30 (100%)

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 Atom x5-Z8300 4C 4T @ 1.84 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	637.2 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Atom x5-Z8300 4C 4T @ 1.84 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 2.30 GHz	390 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Atom x5-Z8300 4C 4T @ 1.44 GHz	0 (0%)
	Intel Core i5-8265U 4C 8T @ 1.60 GHz	1737 (100%)

Devices using this processor
Intel Atom x5-Z8300	Intel Core i5-8265U
Unknown	Acer Aspire 3 (A315-54-56KY) - 15.6 Zoll Laptop HP 250 G7 15.6 Zoll Business Laptop - Intel Core i5-8265U Lenovo ThinkPad X390 Yoga - Intel i5-8265U Acer Aspire 5 (A515-54G-59WR) - 15.6 Zoll Laptop

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