Intel Core i7-8700K vs Intel Core i7-7800X

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

Intel Core i7-7800X
Intel Socket 2066DESKTOP
3500 MHz / Cores: 6 / Jun 2017
Intel Core i7-7800X

Summary

Synthetic performance index

  • Intel Core i7-8700K
    107%
  • Intel Core i7-7800X
    100%

Relative performance

Single thread performance index

  • Intel Core i7-8700K
    109%
  • Intel Core i7-7800X
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-8700K
    105%
  • Intel Core i7-7800X
    100%

Relative performance

Reasons to consider Intel Core i7-8700K

9% higher single threaded performance.
5% higher multi threaded performance.
45 watts lower power draw.
Around 7% higher average synthetic performance.

Reasons to consider Intel Core i7-7800X

None

Intel Core i7-8700K

Gaming

HWBench recommends Intel Core i7-8700K

Based on game and synthetic benchmarks, and theoretical specifications.

No winner

Productivity

No clear winner declared




Specifications

Features

Intel Core i7-8700KIntel Core i7-7800X
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 i7-8700KIntel Core i7-7800X
ArchitectureIntel_CoffeeLakevsIntel_Kabylake
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameCoffee LakevsSkylake-X
Release DateOct 2017vsJun 2017

Cores

Intel Core i7-8700KIntel Core i7-7800X
Cores6vs6
Threads12vs12
SMPs1vs1
Integrated GraphicsNovsNo

Cache

Intel Core i7-8700KIntel Core i7-7800X
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache12288 KB (shared)vs8448 KB (shared)

Physical

Intel Core i7-8700KIntel Core i7-7800X
SocketIntel Socket 1151vsIntel Socket 2066
Max Case Temp72°Cvs72°C
PackageFC-LGA1151vsFC-LGA2066
Die Size151 mm²vs308 mm²
Process14 nmvs14 nm

Performance

Intel Core i7-8700KIntel Core i7-7800X
Cpu Frequency3700 MHzvs3500 MHz
Turbo Clock Speed4700 MHzvs4000 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP95 Wvs140 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-8700K
    5405 points
  • Intel Core i7-7800X
    4800 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-8700K
    30891 points
  • Intel Core i7-7800X
    30240 points

Points - higher is better


Synthetic benchmarks

Cinebench R15 CPU Multi 64Bit

  • Intel Core i7-8700K
    1412
  • Intel Core i7-7800X
    1333

points - higher is better

Cinebench R15 CPU Single 64Bit

  • Intel Core i7-8700K
    202
  • Intel Core i7-7800X
    185

points - higher is better