Intel Core i7-6800K vs Intel Core i5-7400

Intel Core i7-6800K
Intel Socket 2011-3DESKTOP
3400 MHz / Cores: 6 / May 2016
Intel Core i7-6800K
Intel Core i5-7400
Intel Socket 1151DESKTOP
3300 MHz / Cores: 4 / Sep 2016
Intel Core i5-7400

Summary

Synthetic performance index

  • Intel Core i7-6800K
    177%
  • Intel Core i5-7400
    100%

Relative performance

Single thread performance index

  • Intel Core i7-6800K
    103%
  • Intel Core i5-7400
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-6800K
    214%
  • Intel Core i5-7400
    100%

Relative performance

Reasons to consider Intel Core i7-6800K

Much higher multi threaded performance (around 114% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.
Around 77% higher average synthetic performance.

Reasons to consider Intel Core i5-7400

75 watts lower power draw.
Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i7-6800K.

Intel Core i7-6800K

Gaming

HWBench recommends Intel Core i7-6800K

Based on game and synthetic benchmarks, and theoretical specifications.

Intel Core i7-6800K

Productivity

HWBench recommends Intel Core i7-6800K

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


Specifications

Features

Intel Core i7-6800KIntel Core i5-7400
MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
EIST
Intel 64
XD bit
VT-x
VT-d
HTT
AES-NI
TXT
CLMUL
FMA3
F16C
BMI1
BMI2
Boost 2.0
TSX
vPro

Architecture

Intel Core i7-6800KIntel Core i5-7400
ArchitectureIntel_BroadwellvsIntel_Kabylake
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameBroadwell-EvsKaby Lake
Release DateMay 2016vsSep 2016

Cores

Intel Core i7-6800KIntel Core i5-7400
Cores6vs4
Threads12vs4
SMPs1vs1
Integrated GraphicsNovsIntel HD Graphics 630

Cache

Intel Core i7-6800KIntel Core i5-7400
L1 Cache32 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache15360 KB (shared)vs6144 KB (shared)

Physical

Intel Core i7-6800KIntel Core i5-7400
SocketIntel Socket 2011-3vsIntel Socket 1151
Max Case Temp72°Cvs72°C
Packagevs
Die Sizeunknownvsunknown
Process14 nmvs14 nm

Performance

Intel Core i7-6800KIntel Core i5-7400
Cpu Frequency3400 MHzvs3300 MHz
Turbo Clock3800 MHzvsnone
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP140 Wvs65 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-6800K
    4256 points
  • Intel Core i5-7400
    3960 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-6800K
    27417 points
  • Intel Core i5-7400
    15840 points

Points - higher is better

Synthetic benchmarks

Rendering: POV-Ray 3.7

  • Intel Core i7-6800K
    2240
  • Intel Core i5-7400
    1365

points per second - higher is better

7-zip

  • Intel Core i7-6800K
    31102
  • Intel Core i5-7400
    14682

MIPS - higher is better

3D Particle Movement (Single Threaded)

  • Intel Core i7-6800K
    119.27
  • Intel Core i5-7400
    115.08

points - higher is better

3D Particle Movement (Multi Threaded)

  • Intel Core i7-6800K
    991.01
  • Intel Core i5-7400
    352.96

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i7-6800K
    1096
  • Intel Core i5-7400
    549

points - higher is better

Cinebench R15 CPU Single 64Bit

  • Intel Core i7-6800K
    154
  • Intel Core i5-7400
    148

points - higher is better