Intel Core i9-9900K vs Intel Core i7-6700K

Intel Core i9-9900K
Intel Socket 1151DESKTOP
3600 MHz / Cores: 8 / Sep 2018
Intel Core i9-9900K
Intel Core i7-6700K
Intel Socket 1151DESKTOP
4000 MHz / Cores: 4 / Aug 2015
Intel Core i7-6700K

Summary

Synthetic performance index

  • Intel Core i9-9900K
    179%
  • Intel Core i7-6700K
    100%

Relative performance

Single thread performance index

  • Intel Core i9-9900K
    122%
  • Intel Core i7-6700K
    100%

Relative performance

Multi thread performance index

  • Intel Core i9-9900K
    236%
  • Intel Core i7-6700K
    100%

Relative performance

Reasons to consider Intel Core i9-9900K

Much higher single threaded performance (around 22% higher), makes a noticeable performance difference in gaming and the majority of applications.
Much higher multi threaded performance (around 136% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.
This is a newer product, it might have better application compatibility/performance (check features chart below).
Around 79% higher average synthetic performance.

Reasons to consider Intel Core i7-6700K

None

Intel Core i9-9900K

Gaming

HWBench recommends Intel Core i9-9900K

Based on game and synthetic benchmarks, and theoretical specifications.

Intel Core i9-9900K

Productivity

HWBench recommends Intel Core i9-9900K

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


Specifications

Features

Intel Core i9-9900KIntel Core i7-6700K
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 i9-9900KIntel Core i7-6700K
ArchitectureIntel_CoffelakevsIntel_Skylake
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameCoffee LakevsSkylake
Release DateSep 2018vsAug 2015

Cores

Intel Core i9-9900KIntel Core i7-6700K
Cores8vs4
Threads16vs8
SMPs1vs1
Integrated GraphicsUHD Graphics 630vsHD Graphics 530

Cache

Intel Core i9-9900KIntel Core i7-6700K
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache16896 KB (shared)vs8192 KB (shared)

Physical

Intel Core i9-9900KIntel Core i7-6700K
SocketIntel Socket 1151vsIntel Socket 1151
Max Case Temp72°Cvs72°C
PackageFC-LGA14Cvs
Die Sizeunknownvsunknown
Process14 nmvs14 nm

Performance

Intel Core i9-9900KIntel Core i7-6700K
Cpu Frequency3600 MHzvs4000 MHz
Turbo Clock Speed5000 MHzvs4200 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP95 Wvs95 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i9-9900K
    6000 points
  • Intel Core i7-6700K
    4830 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i9-9900K
    41472 points
  • Intel Core i7-6700K
    22264 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Multi 64Bit

  • Intel Core i9-9900K
    2077
  • Intel Core i7-6700K
    880

points - higher is better

Cinebench R15 CPU Single 64Bit

  • Intel Core i9-9900K
    218
  • Intel Core i7-6700K
    177.5

points - higher is better