Intel Core i9-9900KS vs Intel Core i7-7820X

Intel Core i9-9900KS
Intel Socket 1151DESKTOP
4000 MHz / Cores: 8 / Oct 2019
Intel Core i9-9900KS
Intel Core i7-7820X
Intel Socket 2066DESKTOP
3600 MHz / Cores: 8 / Jun 2017
Intel Core i7-7820X

Summary

Synthetic performance index

  • Intel Core i9-9900KS
    122%
  • Intel Core i7-7820X
    100%

Relative performance

Single thread performance index

  • Intel Core i9-9900KS
    111%
  • Intel Core i7-7820X
    100%

Relative performance

Multi thread performance index

  • Intel Core i9-9900KS
    133%
  • Intel Core i7-7820X
    100%

Relative performance

Reasons to consider Intel Core i9-9900KS

11% higher single threaded performance.
Much higher multi threaded performance (around 33% 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).
Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i7-7820X.
Around 22% higher average synthetic performance.

Reasons to consider Intel Core i7-7820X

None

Intel Core i9-9900KS

Gaming

HWBench recommends Intel Core i9-9900KS

Based on game and synthetic benchmarks, and theoretical specifications.

Intel Core i9-9900KS

Productivity

HWBench recommends Intel Core i9-9900KS

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


Specifications

Features

Intel Core i9-9900KSIntel Core i7-7820X
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
Boost 3.0

Architecture

Intel Core i9-9900KSIntel Core i7-7820X
ArchitectureIntel_CoffelakevsIntel_Kabylake
MarketDesktopvsDesktop
Memory SupportDDR4-2666 MHz Dual-channelvsDDR4
CodenameCoffee Lake-RvsSkylake-X
Release DateOct 2019vsJun 2017

Cores

Intel Core i9-9900KSIntel Core i7-7820X
Cores8vs8
Threads16vs16
SMPs1vs1
Integrated GraphicsUHD 630vsNo

Cache

Intel Core i9-9900KSIntel Core i7-7820X
L1 Cache64K (per core)vs64 KB (per core)
L2 Cache256K (per core)vs256 KB (per core)
L3 Cache16MB (shared)vs11264 KB (shared)

Physical

Intel Core i9-9900KSIntel Core i7-7820X
SocketIntel Socket 1151vsIntel Socket 2066
Max Case Temp72°Cvs72°C
PackageFC-LGA14CvsFC-LGA2066
Die Size180mm²vs308mm²
Process14 nmvs14 nm

Performance

Intel Core i9-9900KSIntel Core i7-7820X
Cpu Frequency4000 MHzvs3600 MHz
Turbo Clock5000 MHzvs4500 MHz
Base Clock100 MHzvs100 MHz
VoltageN/Avsunknown
TDP127 Wvs140 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i9-9900KS
    6000 points
  • Intel Core i7-7820X
    5400 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i9-9900KS
    46080 points
  • Intel Core i7-7820X
    41472 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Single 64Bit

  • Intel Core i9-9900KS
    216
  • Intel Core i7-7820X
    193

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i9-9900KS (simulated)
    2307.78
  • Intel Core i7-7820X
    1734

points - higher is better