Intel Core i7-7700K vs Intel Core i7-5820K

Intel Core i7-7700K
4200 MHz / Cores: 4 / Sep 2016
Intel Core i7-7700KIntel Socket 1151
Type: Desktop

Intel Core i7-5820K
4200 MHz / Cores: 6 / Sep 2014
Intel Core i7-5820KIntel Socket 2011-3
Type: Desktop

Summary

Reasons to consider Intel Core i7-7700K

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.
Higher theoretical gaming performance, based on raw specifications plus core architecture.

Reasons to consider Intel Core i7-5820K

Higher theoretical multi-threaded performance, based on raw specifications plus core architecture.

Intel Core i7-7700K

Gaming

HWBench recommends Intel Core i7-7700K

Based on game and synthetic benchmarks, and theoretical specifications.

No winner

Productivity

No clear winner declared


Specifications

Features

Intel Core i7-7700KIntel Core i7-5820K
MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
EIST
Intel 64
XD bit
VT-x
VT-d
HTT
AES-NI
TSX
TXT
CLMUL
FMA3
F16C
BMI1
BMI2
Boost 2.0

Architecture

Intel Core i7-7700KIntel Core i7-5820K
ArchitectureIntel_KabylakevsIntel_Haswell
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameKaby LakevsHaswell-E
Release DateSep 2016vsSep 2014

Cores

Intel Core i7-7700KIntel Core i7-5820K
Cores4vs6
Threads8vs12
SMPs1vs1
Integrated GraphicsHD GraphicsvsNo

Cache

Intel Core i7-7700KIntel Core i7-5820K
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache8192 KB (shared)vs15360 KB (shared)

Physical

Intel Core i7-7700KIntel Core i7-5820K
SocketIntel Socket 1151vsIntel Socket 2011-3
Max Case Temp72°Cvsunknown
Packagevs
Die Size0 mm²vs356 mm²
Process14 nmvs22 nm

Performance

Intel Core i7-7700KIntel Core i7-5820K
Cpu Frequency4200 MHzvs3300 MHz
Turbo Clock Speed4500 MHzvs3600 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP95 Wvs140 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-7700K
    5400 points
  • Intel Core i7-5820K
    4032 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-7700K
    24192 points
  • Intel Core i7-5820K
    26611 points

Points - higher is better