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

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

Intel Core i7-5820K
4200 MHz / Cores: 6 / Sep 2014
Intel Core i7-5820K Intel 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

None

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 i7-7700K 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
    5670 points
  • Intel Core i7-5820K
    4032 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-7700K
    25401 points
  • Intel Core i7-5820K
    26611 points

Points - higher is better