Intel Core i9-7920X vs Intel Core i7-8700K

Intel Core i9-7920X
Intel Socket 2066DESKTOP
2900 MHz / Cores: 12 / Sep 2017
Intel Core i9-7920X

Intel Core i7-8700K
Intel Socket 1151DESKTOP
3700 MHz / Cores: 6 / Oct 2017
Intel Core i7-8700K

Summary

Synthetic performance index

  • Intel Core i9-7920X
    129%
  • Intel Core i7-8700K
    100%

Relative performance

Single thread performance index

  • Intel Core i9-7920X
    100%
  • Intel Core i7-8700K
    103%

Relative performance

Multi thread performance index

  • Intel Core i9-7920X
    161%
  • Intel Core i7-8700K
    100%

Relative performance

Reasons to consider Intel Core i9-7920X

Much higher multi threaded performance (around 61% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.

Reasons to consider Intel Core i7-8700K

45 watts lower power draw.
Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i9-7920X.

No winner

Gaming

No clear winner declared


Intel Core i9-7920X

Productivity

HWBench recommends Intel Core i9-7920X

Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.



Specifications

Features

Intel Core i9-7920XIntel Core i7-8700K
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
Boost 3.0

Architecture

Intel Core i9-7920XIntel Core i7-8700K
ArchitectureIntel_KabylakevsIntel_Coffelake
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameSkylake-XvsCoffee Lake
Release DateSep 2017vsOct 2017

Cores

Intel Core i9-7920XIntel Core i7-8700K
Cores12vs6
Threads24vs12
SMPs1vs1
Integrated GraphicsNovsIntel UHD 630

Cache

Intel Core i9-7920XIntel Core i7-8700K
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache1024 KB (per core)vs256 KB (per core)
L3 Cache16896 KB (shared)vs12288 KB (shared)

Physical

Intel Core i9-7920XIntel Core i7-8700K
SocketIntel Socket 2066vsIntel Socket 1151
Max Case Temp72°Cvs72°C
PackageFC-LGA2066vsFC-LGA1151
Die Size428mm²vs151mm²
Process14 nmvs14 nm

Performance

Intel Core i9-7920XIntel Core i7-8700K
Cpu Frequency2900 MHzvs3700 MHz
Turbo Clock Speed4400 MHzvs4700 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP140 Wvs95 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i9-7920X
    5280 points
  • Intel Core i7-8700K
    5640 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i9-7920X
    50112 points
  • Intel Core i7-8700K
    31968 points

Points - higher is better


Synthetic benchmarks

Cinebench R15 CPU Single 64Bit

  • Intel Core i9-7920X (simulated)
    195.44
  • Intel Core i7-8700K
    202

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i9-7920X (simulated)
    2287.31
  • Intel Core i7-8700K
    1412

points - higher is better