Intel Core i5-8400 vs Intel Core i7-4790K

Intel Core i5-8400
Intel Socket 1151 DESKTOP
2800 MHz / Cores: 6 / Jan 2018
Intel Core i5-8400

Intel Core i7-4790K
Intel Socket 1150 DESKTOP
4000 MHz / Cores: 4 / May 2014
Intel Core i7-4790K

Summary

Synthetic performance index

  • Intel Core i5-8400
    110%
  • Intel Core i7-4790K
    100%

Relative performance

Multi thread performance index

  • Intel Core i5-8400
    110%
  • Intel Core i7-4790K
    100%

Relative performance

Reasons to consider Intel Core i5-8400

10% higher multi threaded performance.
This is a newer product, it might have better application compatibility/performance (check features chart below).
Around 10% higher average synthetic performance.

Reasons to consider Intel Core i7-4790K

Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i5-8400.

Intel Core i5-8400

Gaming

HWBench recommends Intel Core i5-8400

Based on game and synthetic benchmarks, and theoretical specifications.

No winner

Productivity

No clear winner declared


Specifications

Features

Intel Core i5-8400 Intel Core i7-4790K
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
HTT

Architecture

Intel Core i5-8400 Intel Core i7-4790K
Architecture Intel_CoffeeLake vs Intel_Haswell
Market Desktop vs Desktop
Memory Support DDR4 vs DDR3
Codename Coffee Lake vs Haswell
Release Date Jan 2018 vs May 2014

Cores

Intel Core i5-8400 Intel Core i7-4790K
Cores 6 vs 4
Threads 6 vs 8
SMPs 1 vs 1
Integrated Graphics No vs Intel HD 4600

Cache

Intel Core i5-8400 Intel Core i7-4790K
L1 Cache 64 KB (per core) vs 64 KB (per core)
L2 Cache 256 KB (per core) vs 256 KB (per core)
L3 Cache 9216 KB (shared) vs 8192 KB (shared)

Physical

Intel Core i5-8400 Intel Core i7-4790K
Socket Intel Socket 1151 vs Intel Socket 1150
Max Case Temp 72°C vs 72°C
Package FC-LGA1151 vs
Die Size 151 mm² vs 177 mm²
Process 14 nm vs 22 nm

Performance

Intel Core i5-8400 Intel Core i7-4790K
Cpu Frequency 2800 MHz vs 4000 MHz
Turbo Clock Speed 4000 MHz vs 4400 MHz
Base Clock 100 MHz vs 100 MHz
Voltage unknown vs unknown
TDP 65 W vs 88 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i5-8400
    4600 points
  • Intel Core i7-4790K
    4928 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i5-8400
    19320 points
  • Intel Core i7-4790K
    21504 points

Points - higher is better


Synthetic benchmarks

Cinebench R15 CPU Multi 64Bit

  • Intel Core i5-8400
    939
  • Intel Core i7-4790K
    846

points - higher is better