Share link|

Submit benchmark

Comparison Search Benchmarks CPUs Leaderboards CPU News & Articles GPU comparison Apple product comparison

Deutsch English Español Français Italiano Japanese

Intel Core i7-5820K vs Intel Core i9-7980XE

Last updated: 2026-07-03

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 74 %

Intel Core i7-5820K

Rank 1 - 100 %

Intel Core i9-7980XE

Multi-core performance

Rank 2 - 33 %

Intel Core i7-5820K

Rank 1 - 100 %

Intel Core i9-7980XE

Cinebench R23 Single-Core
Single-core performance

6C / 12T · 3.60 GHz

795 pts

18C / 36T · 4.20 GHz

1,281 pts

Cinebench R23 Multi-Core
Multi-core performance

6C / 12T · 3.40 GHz

5,700 pts

18C / 36T · 3.50 GHz

28,196 pts

Geekbench 6 Single-Core
Single-core performance

6C / 12T · 3.60 GHz

1,086

18C / 36T · 4.20 GHz

1,394

Geekbench 6 Multi-Core
Multi-core performance

6C / 12T · 3.40 GHz

5,763

18C / 36T · 3.50 GHz

11,708

Cinebench R20 Single-Core
Single-core performance

6C / 12T · 3.60 GHz

329 cb

18C / 36T · 4.20 GHz

446 cb

Geekbench 5, 64bit Single-Core
Single-core performance

6C / 12T · 3.60 GHz

923

18C / 36T · 4.20 GHz

1,121

Cinebench R20 Multi-Core
Multi-core performance

6C / 12T · 3.40 GHz

2,301 cb

18C / 36T · 3.50 GHz

7,671 cb

Geekbench 5, 64bit Multi-Core
Multi-core performance

6C / 12T · 3.40 GHz

5,537

18C / 36T · 3.50 GHz

16,495

Blender 2.81 (bmw27)
Multi-core performance

6C / 12T · 3.40 GHz

331.7 s

18C / 36T · 3.50 GHz

77.0 s

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

6C / 12T · 3.30 GHz

2,849

18C / 36T · 2.60 GHz

10,563

Cinebench R15 (Single-Core)
Single-core performance

6C / 12T · 3.60 GHz

139 cb

18C / 36T · 4.20 GHz

184 cb

Cinebench R15 (Multi-Core)
Multi-core performance

6C / 12T · 3.40 GHz

1,085 cb

18C / 36T · 3.50 GHz

3,455 cb

More benchmarks

Cinebench R23 (SC)
690 entries

Cinebench R23 (MC)
665 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

Blender 3.1 Benchmark
213 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Specifications

At a glance

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
Family	Intel Core i7 Extreme Edition (24)	Intel Core i9 (81)
CPU group	Intel Core i 5000X (3)	Intel Core i 7000X (9)
Architecture	Haswell E	Skylake X
Technology	22 nm	14 nm
Segment	Desktop	Desktop
Socket	LGA 2011-3	LGA 2066
Predecessor	Intel Core i7-4820K
Successor		Intel Core i9-9980XE

CPU Cores and Base Frequency

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
CPU Cores / Threads	6 / 12	18 / 36
Hyperthreading / SMT	✓	✓
Core architecture	normal	normal
Cores:	6x	18x
Frequency:	3.30 GHz	2.60 GHz
Turbo (1 Core):	3.60 GHz	4.20 GHz
Turbo (All Cores):	3.40 GHz	3.50 GHz
L2-Cache
L3-Cache	15.00 MB	25.00 MB
Overclocking	✓	✓

Integrated graphics (iGPU)

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
GPU name	no iGPU	no iGPU
GPU frequency
CUs / Shader	/	/
Raytracing	✗	✗
Max. displays
Max. GPU Memory
Technology
Release date

NPU AI performance

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
Memory	DDR4-2133 (68.2 GB/s)	DDR4-2666 (85.4 GB/s)
Max. Memory	64 GB	128 GB
Memory channels	4	4
ECC	No	No
PCIe	3.0 x 28	3.0 x 44
PCIe Bandwidth	27.6 GB/s	43.3 GB/s

Thermal Management

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
TDP	140 W	165 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Wischen	Intel Core i7-5820K	Intel Core i9-7980XE
Chip design	Monolithic	Monolithic
AES-NI	✓	✓
Operating systems	Windows 10, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2	SSE4.1, SSE4.2, AVX2, AVX-512
Release date	Q3/2014	Q4/2017
Release price	499 $	1999 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i7-5820K is 4.4 stars (16 ratings), while Intel Core i9-7980XE has received 4.6 stars (11 ratings).

Click on the stars to rate one or both processors.

Intel Core i7-5820K
6C / 12T · 3.30 - 3.60 GHz

★★★★★

Intel Core i9-7980XE
18C / 36T · 2.60 - 4.20 GHz

★★★★★