How do the scores compare?

Intel Core i3-8100 scores 24/100 overall; Intel Core i7-5820K scores 29.1/100. Intel Core i3-8100 wins 6 individual spec rows, Intel Core i7-5820K wins 11.

What are the main differences between the Intel Core i3-8100 and the Intel Core i7-5820K?

Intel Core i3-8100 advantages: Stronger Single-core score: 26 vs 21; 54% lower Base TDP: 65 W vs 140 W; 36% lower process: 14 nm vs 22 nm; 15% higher Geekbench 6 (single): 1,200 vs 1,040; Has Cooler included — the other doesn't; Lower launch price: $117 vs $389. Intel Core i7-5820K advantages: Stronger Multi-core score: 30 vs 24; Stronger gaming score: 37 vs 22; 200% higher threads: 12 vs 4; 150% higher L3 cache: 15 MB vs 6 MB; 108% higher PassMark: 12,700 vs 6,100.

Which is cheaper: Intel Core i3-8100 or Intel Core i7-5820K?

Intel Core i3-8100 launched cheaper at $117, versus $389 for the Intel Core i7-5820K.

Intel Core i3-8100 vs Intel Core i7-5820K

Intel

Intel Core i3-8100

$117

WINNER

Intel

Intel Core i7-5820K

$389

26.3Single-core20.7

23.7Multi-core30.2

21.9Gaming37.1

6 spec wins — Intel Core i3-810011 spec wins — Intel Core i7-5820K

InnoReviews verdict

Intel Core i7-5820K wins this desktop processor face-off, 29.1 to 24, pulling ahead mainly in gaming (+15) and Multi-core (+7). Intel Core i3-8100 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the Intel Core i3-8100

Stronger Single-core score: 26 vs 21
54% lower Base TDP: 65 W vs 140 W
36% lower process: 14 nm vs 22 nm
15% higher Geekbench 6 (single): 1,200 vs 1,040
Has Cooler included — the other doesn't
Lower launch price: $117 vs $389

Reasons to pick the Intel Core i7-5820K

Stronger Multi-core score: 30 vs 24
Stronger gaming score: 37 vs 22
200% higher threads: 12 vs 4
150% higher L3 cache: 15 MB vs 6 MB
108% higher PassMark: 12,700 vs 6,100

General

General comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
Announced	2017	2014
Socket	LGA1151-v2	LGA2011-v3
Process	14 nm+36%	22 nm
Base TDP	65 W+54%	140 W
Unlocked multiplier	No	Yes
Cooler included	Yes	No

Cores & Clocks

Cores & Clocks comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
Cores	4	6+50%
Performance cores	4	6+50%
Efficiency cores	0	0
Threads	4	12+200%
Base clock	3.6 GHz+9%	3.3 GHz
Boost clock	3.6 GHz	3.6 GHz
L2 cache	1 MB	2 MB+50%
L3 cache	6 MB	15 MB+150%

Integrated GPU

Integrated GPU comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
iGPU	Intel UHD Graphics 630	—
iGPU clock	1,100 MHz	—

Memory

Memory comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
Memory support	DDR4-2400	DDR4-2133
Max memory	64 GB	64 GB
Memory channels	2	4+100%

Platform

Platform comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
PCIe version	3	3
CPU PCIe lanes	16	28+75%

Benchmarks

Benchmarks comparison: Intel Core i3-8100 versus Intel Core i7-5820K
Spec	Intel Core i3-8100	Intel Core i7-5820K
Geekbench 6 (single)	1,200+15%Top 83%	1,040Top 95%
Geekbench 6 (multi)	3,350Top 90%	5,100+52%Top 73%
Cinebench R23 (single)	—	890Top 96%
Cinebench R23 (multi)	3,800Top 92%	6,400+68%Top 77%
PassMark	6,100Top 90%	12,700+108%Top 72%

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