Intel Core i5-8420 vs Intel Core i7-3930K

Intel Core i5-8420
Intel Socket 1151DESKTOP
2900 MHz / Cores: 6 / Sep 2018
Intel Core i5-8420
Intel Core i7-3930K
Intel Socket 2011DESKTOP
3200 MHz / Cores: 6 / Nov 2011
Intel Core i7-3930K

Summary

Synthetic performance index

  • Intel Core i5-8420
    100%
  • Intel Core i7-3930K
    102%

Relative performance

Single thread performance index

  • Intel Core i5-8420
    112%
  • Intel Core i7-3930K
    100%

Relative performance

Multi thread performance index

  • Intel Core i5-8420
    100%
  • Intel Core i7-3930K
    115%

Relative performance

Reasons to consider Intel Core i5-8420

12% higher single threaded performance.
65 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 i7-3930K.

Reasons to consider Intel Core i7-3930K

15% higher multi threaded performance.

No winner

Gaming

No clear winner declared


No winner

Productivity

No clear winner declared



Specifications

Features

Intel Core i5-8420Intel Core i7-3930K
MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
EIST
Intel 64
XD bit
VT-x
VT-d
AES-NI
TSX
TXT
CLMUL
FMA3
F16C
BMI1
BMI2
Boost 2.0
Hyper-Threading

Architecture

Intel Core i5-8420Intel Core i7-3930K
ArchitectureIntel_CoffelakevsIntel_SandyBridge
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR3
CodenameCoffee LakevsSandy Bridge-E
Release DateSep 2018vsNov 2011

Cores

Intel Core i5-8420Intel Core i7-3930K
Cores6vs6
Threads6vs12
SMPs1vs1
Integrated GraphicsUHD Graphics 630vsNo

Cache

Intel Core i5-8420Intel Core i7-3930K
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache9216 KB (shared)vs12288 KB (shared)

Physical

Intel Core i5-8420Intel Core i7-3930K
SocketIntel Socket 1151vsIntel Socket 2011
Max Case Temp72°Cvs67°C
PackageFC-LGA1151vsFC-LGA10
Die Sizeunknownvs435mm²
Process14 nmvs32 nm

Performance

Intel Core i5-8420Intel Core i7-3930K
Cpu Frequency2900 MHzvs3200 MHz
Turbo Clock4100 MHzvs3800 MHz
Base Clock100 MHzvs100 MHz
Voltagevariablevs1.35 V
TDP65 Wvs130 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i5-8420
    4920 points
  • Intel Core i7-3930K
    3800 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i5-8420
    20880 points
  • Intel Core i7-3930K
    23040 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Single 64Bit

  • Intel Core i5-8420 (simulated)
    174.25
  • Intel Core i7-3930K (simulated)
    154.92

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i5-8420 (simulated)
    972.54
  • Intel Core i7-3930K (simulated)
    1122.91

points - higher is better