Intel Core i5-8600K vs Intel Core i7-5820K

Intel Core i5-8600K
Intel Socket 1151DESKTOP
3600 MHz / Cores: 6 / Jan 2018
Intel Core i5-8600K
Intel Core i7-5820K
Intel Socket 2011-3DESKTOP
3300 MHz / Cores: 6 / Sep 2014
Intel Core i7-5820K

Summary

Synthetic performance index

  • Intel Core i5-8600K
    117%
  • Intel Core i7-5820K
    100%

Relative performance

Single thread performance index

  • Intel Core i5-8600K
    132%
  • Intel Core i7-5820K
    100%

Relative performance

Multi thread performance index

  • Intel Core i5-8600K
    101%
  • Intel Core i7-5820K
    100%

Relative performance

Reasons to consider Intel Core i5-8600K

Much higher single threaded performance (around 32% higher), makes a noticeable performance difference in gaming and the majority of applications.
45 watts lower power draw.
This is a newer product, it might have better application compatibility/performance (check features chart below).
Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i7-5820K.
Around 17% higher average synthetic performance.

Reasons to consider Intel Core i7-5820K

None

Intel Core i5-8600K

Gaming

HWBench recommends Intel Core i5-8600K

Based on game and synthetic benchmarks, and theoretical specifications.

No winner

Productivity

No clear winner declared



Specifications

Features

Intel Core i5-8600KIntel Core i7-5820K
MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
EIST
Intel 64
XD bit
VT-x
VT-d
AES-NI
TSX
TXT
CLMUL
FMA3
F16C
BMI1
BMI2
Boost 2.0
HTT

Architecture

Intel Core i5-8600KIntel Core i7-5820K
ArchitectureIntel_CoffelakevsIntel_Haswell
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameCoffee LakevsHaswell-E
Release DateJan 2018vsSep 2014

Cores

Intel Core i5-8600KIntel Core i7-5820K
Cores6vs6
Threads6vs12
SMPs1vs1
Integrated GraphicsIntel UHD 630vsNo

Cache

Intel Core i5-8600KIntel Core i7-5820K
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache9216 KB (shared)vs15360 KB (shared)

Physical

Intel Core i5-8600KIntel Core i7-5820K
SocketIntel Socket 1151vsIntel Socket 2011-3
Max Case Temp72°Cvsunknown
PackageFC-LGA1151vs
Die Size151mm²vs356mm²
Process14 nmvs22 nm

Performance

Intel Core i5-8600KIntel Core i7-5820K
Cpu Frequency3600 MHzvs3300 MHz
Turbo Clock4300 MHzvs3600 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP95 Wvs140 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i5-8600K
    5160 points
  • Intel Core i7-5820K
    4032 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i5-8600K
    25920 points
  • Intel Core i7-5820K
    26611 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Multi 64Bit

  • Intel Core i5-8600K
    1038
  • Intel Core i7-5820K
    1022

points - higher is better

Cinebench R15 CPU Single 64Bit

  • Intel Core i5-8600K
    187
  • Intel Core i7-5820K
    141

points - higher is better