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

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

Intel Core i7-5820K
Intel Socket 2011-3 DESKTOP
3300 MHz / Cores: 6 / Sep 2014
Intel Core i7-5820K

Summary

Synthetic performance index

  • Intel Core i7-7700K
    102%
  • Intel Core i7-5820K
    100%

Relative performance

Single thread performance index

  • Intel Core i7-7700K
    127%
  • Intel Core i7-5820K
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-7700K
    100%
  • Intel Core i7-5820K
    106%

Relative performance

Reasons to consider Intel Core i7-7700K

Much higher single threaded performance (around 27% 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.

Reasons to consider Intel Core i7-5820K

6% higher multi threaded performance.

No winner

Gaming

No clear winner declared


No winner

Productivity

No clear winner declared


Specifications

Features

Intel Core i7-7700K Intel 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 i7-7700K Intel Core i7-5820K
Architecture Intel_Kabylake vs Intel_Haswell
Market Desktop vs Desktop
Memory Support DDR4 vs DDR4
Codename Kaby Lake vs Haswell-E
Release Date Sep 2016 vs Sep 2014

Cores

Intel Core i7-7700K Intel Core i7-5820K
Cores 4 vs 6
Threads 8 vs 12
SMPs 1 vs 1
Integrated Graphics HD Graphics vs No

Cache

Intel Core i7-7700K Intel Core i7-5820K
L1 Cache 64 KB (per core) vs 64 KB (per core)
L2 Cache 256 KB (per core) vs 256 KB (per core)
L3 Cache 8192 KB (shared) vs 15360 KB (shared)

Physical

Intel Core i7-7700K Intel Core i7-5820K
Socket Intel Socket 1151 vs Intel Socket 2011-3
Max Case Temp 72°C vs unknown
Package vs
Die Size 0 mm² vs 356 mm²
Process 14 nm vs 22 nm

Performance

Intel Core i7-7700K Intel Core i7-5820K
Cpu Frequency 4200 MHz vs 3300 MHz
Turbo Clock Speed 4500 MHz vs 3600 MHz
Base Clock 100 MHz vs 100 MHz
Voltage unknown vs unknown
TDP 95 W vs 140 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


Synthetic benchmarks

Rendering: POV-Ray 3.7

  • Intel Core i7-7700K
    2097
  • Intel Core i7-5820K
    2114

points per second - higher is better

7-zip

  • Intel Core i7-7700K
    27343
  • Intel Core i7-5820K
    30660

MIPS - higher is better

3D Particle Movement (Single Threaded)

  • Intel Core i7-7700K
    150.72
  • Intel Core i7-5820K
    118.67

points - higher is better

3D Particle Movement (Multi Threaded)

  • Intel Core i7-7700K
    882.98
  • Intel Core i7-5820K
    950.06

points - higher is better