Intel Core i7-5820K vs Intel Core i3-5005U

Last updated: 2023-08-11

CPU comparison with benchmarks


Intel Core i7-5820K		Intel Core i3-5005U
CPU comparison Intel Core i7-5820K or Intel Core i3-5005U - 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 i7-5820K has 6 cores with 12 threads and clocks with a maximum frequency of 3.60 GHz. Up to 64 GB of memory is supported in 4 memory channels. The Intel Core i7-5820K was released in Q3/2014. The Intel Core i3-5005U has 2 cores with 4 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core i3-5005U was released in Q1/2015.

Intel Core i7 Extreme Edition (24)	Family	Intel Core i3 (205)
Intel Core i 5000X (3)	CPU group	Intel Core i 5000U (16)
5	Generation	5
Haswell E	Architecture	Broadwell U
Desktop / Server	Segment	Mobile
Intel Core i7-4820K	Predecessor	Intel Core i3-4005U
--	Successor	--

CPU Cores and Base Frequency The Intel Core i7-5820K has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the Intel Core i7-5820K is 3.30 GHz (3.60 GHz) while the Intel Core i3-5005U has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core i3-5005U is at 2.00 GHz.
Intel Core i7-5820K	Characteristic	Intel Core i3-5005U
6	Cores	2
12	Threads	4
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	No
3.30 GHz	Frequency	2.00 GHz
3.60 GHz	Turbo Frequency (1 Core)	--
3.40 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 Core i7-5820K	Characteristic	Intel Core i3-5005U
--	AI hardware	--
--	AI specifications	--

Internal Graphics The Intel Core i7-5820K or Intel Core i3-5005U 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	Intel HD Graphics 5500
	GPU frequency	0.30 GHz
--	GPU (Turbo)	0.85 GHz
--	GPU Generation	8
	Technology	14 nm
	Max. displays	3
--	Compute units	24
--	Shader	192
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	16 GB
--	DirectX Version	11.2

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 HD Graphics 5500
No	Codec h265 / HEVC (8 bit)	No
No	Codec h265 / HEVC (10 bit)	No
No	Codec h264	Decode / Encode
No	Codec VP9	No
No	Codec VP8	Decode
No	Codec AV1	No
No	Codec AVC	Decode / Encode
No	Codec VC-1	Decode
No	Codec JPEG	Decode

Memory & PCIe The Intel Core i7-5820K can use up to 64 GB of memory in 4 memory channels. The maximum memory bandwidth is 68.2 GB/s. The Intel Core i3-5005U supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 25.6 GB/s.
Intel Core i7-5820K	Characteristic	Intel Core i3-5005U
DDR4-2133	Memory	DDR3-1600
64 GB	Max. Memory	16 GB
4 (Quad Channel)	Memory channels	2 (Dual Channel)
68.2 GB/s	Max. Bandwidth	25.6 GB/s
No	ECC	No
--	L2 Cache	--
15.00 MB	L3 Cache	3.00 MB
3.0	PCIe version	2.0
28	PCIe lanes	12
27.6 GB/s	PCIe Bandwidth	6.0 GB/s
Thermal Management The thermal design power (TDP for short) of the Intel Core i7-5820K is 140 W, while the Intel Core i3-5005U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Core i7-5820K	Characteristic	Intel Core i3-5005U
140 W	TDP (PL1 / PBP)	15 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	10 W
--	Tjunction max.	105 °C
Technical details The Intel Core i7-5820K is manufactured in 22 nm and has 15.00 MB cache. The Intel Core i3-5005U is manufactured in 14 nm and has a 3.00 MB cache.
Intel Core i7-5820K	Characteristic	Intel Core i3-5005U
22 nm	Technology	14 nm
Monolithic	Chip design	Monolithic
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2	ISA extensions	SSE4.1, SSE4.2, AVX2
LGA 2011-3	Socket	BGA 1168
VT-x, VT-x EPT, VT-d	Virtualization	VT-x, VT-x EPT, VT-d
Yes	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Linux
Q3/2014	Release date	Q1/2015
499 $	Release price	--

show more data		show more data

Intel Core i7-5820K 6C 12T @ 3.30 GHz (3.60 GHz) buy now on Amazon and save! Intel Core i3-5005U 2C 4T @ 2.00 GHz buy now on Amazon and save!

Rate these processors

Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

Intel Core i7-5820K (100%)

Intel Core i3-5005U (57%)

⌀ Multi core performance in 5 CPU benchmarks

Intel Core i7-5820K (100%)

Intel Core i3-5005U (20%)

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 i7-5820K 6C 12T @ 3.60 GHz	923 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	505 (55%)

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 i7-5820K 6C 12T @ 3.40 GHz	5537 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	1082 (20%)

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 i7-5820K 6C 12T @ 3.60 GHz	1086 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	630 (58%)

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 i7-5820K 6C 12T @ 3.40 GHz	5763 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	1197 (21%)

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 i7-5820K 6C 12T @ 3.40 GHz	9854 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	2025 (21%)

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 Core i7-5820K 6C 12T @ 3.30 GHz	2849 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	596 (21%)

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 i7-5820K 6C 12T @ 3.60 GHz	139 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	82 (59%)

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 i7-5820K 6C 12T @ 3.40 GHz	1085 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	210 (19%)

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 i7-5820K 6C 12T @ 3.60 GHz	795 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 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 i7-5820K 6C 12T @ 3.40 GHz	5700 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 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 i7-5820K 6C 12T @ 3.60 GHz	329 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 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 i7-5820K 6C 12T @ 3.40 GHz	2301 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	0 (0%)

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 i7-5820K @ 0.00 GHz	0 (0%)
	Intel Core i3-5005U Intel HD Graphics 5500 @ 0.85 GHz	326 (100%)

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 Core i7-5820K 6C 12T @ 3.40 GHz	88 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 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 i7-5820K 6C 12T @ 3.40 GHz	331.7 (100%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	0 (0%)

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 Core i7-5820K 6C 12T @ 3.40 GHz	0 (0%)
	Intel Core i3-5005U 2C 4T @ 2.00 GHz	197 (100%)

Devices using this processor
Intel Core i7-5820K	Intel Core i3-5005U
Unknown	Unknown

Popular comparisons containing this CPUs


1.		Intel Core i7-5820K vs Intel Core i7-6700K
2.		Intel Pentium N4200 vs Intel Core i3-5005U
3.		Intel Core i7-4790K vs Intel Core i7-5820K
4.		Intel Celeron J4125 vs Intel Core i3-5005U
5.		Intel Core i3-5005U vs Intel Core i5-5200U
6.		Intel Celeron N3350 vs Intel Core i3-5005U
7.		Intel Celeron N3450 vs Intel Core i3-5005U
8.		Intel Core i3-5005U vs Intel Pentium N3710
9.		Intel Core i3-5005U vs Intel Core i3-4005U
10.		Intel Pentium Silver N5000 vs Intel Core i3-5005U