Intel Core i7-8700K vs Intel Core i7-7700K

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

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

Summary

Synthetic performance index

  • Intel Core i7-8700K
    124%
  • Intel Core i7-7700K
    100%

Relative performance

Single thread performance index

  • Intel Core i7-8700K
    103%
  • Intel Core i7-7700K
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-8700K
    145%
  • Intel Core i7-7700K
    100%

Relative performance

Reasons to consider Intel Core i7-8700K

Much higher multi threaded performance (around 45% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.
Around 24% higher average synthetic performance.

Reasons to consider Intel Core i7-7700K

None

Intel Core i7-8700K

Gaming

HWBench recommends Intel Core i7-8700K

Based on game and synthetic benchmarks, and theoretical specifications.

Intel Core i7-8700K

Productivity

HWBench recommends Intel Core i7-8700K

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


Specifications

Features

Intel Core i7-8700K Intel Core i7-7700K
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 i7-8700K Intel Core i7-7700K
Architecture Intel_Coffelake vs Intel_Kabylake
Market Desktop vs Desktop
Memory Support DDR4 vs DDR4
Codename Coffee Lake vs Kaby Lake
Release Date Oct 2017 vs Sep 2016

Cores

Intel Core i7-8700K Intel Core i7-7700K
Cores 6 vs 4
Threads 12 vs 8
SMPs 1 vs 1
Integrated Graphics Intel UHD 630 vs Intel HD Graphics 630

Cache

Intel Core i7-8700K Intel Core i7-7700K
L1 Cache 64 KB (per core) vs 64 KB (per core)
L2 Cache 256 KB (per core) vs 256 KB (per core)
L3 Cache 12288 KB (shared) vs 8192 KB (shared)

Physical

Intel Core i7-8700K Intel Core i7-7700K
Socket Intel Socket 1151 vs Intel Socket 1151
Max Case Temp 72°C vs 72°C
Package FC-LGA1151 vs
Die Size 151mm² vs unknown
Process 14 nm vs 14 nm

Performance

Intel Core i7-8700K Intel Core i7-7700K
Cpu Frequency 3700 MHz vs 4200 MHz
Turbo Clock Speed 4700 MHz vs 4500 MHz
Base Clock 100 MHz vs 100 MHz
Voltage unknown vs unknown
TDP 95 W vs 95 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-8700K
    5640 points
  • Intel Core i7-7700K
    5400 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-8700K
    31968 points
  • Intel Core i7-7700K
    24192 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Multi 64Bit

  • Intel Core i7-8700K
    1412
  • Intel Core i7-7700K
    972

points - higher is better

Cinebench R15 CPU Single 64Bit

  • Intel Core i7-8700K
    202
  • Intel Core i7-7700K
    196

points - higher is better