Intel Core i7-7740X vs Intel Core i5-7640X

Intel Core i7-7740X
Intel Socket 2066DESKTOP
4300 MHz / Cores: 4 / Jun 2017
Intel Core i7-7740X
Intel Core i5-7640X
Intel Socket 2066DESKTOP
3900 MHz / Cores: 4 / Jun 2017
Intel Core i5-7640X

Summary

Synthetic performance index

  • Intel Core i7-7740X
    131%
  • Intel Core i5-7640X
    100%

Relative performance

Single thread performance index

  • Intel Core i7-7740X
    111%
  • Intel Core i5-7640X
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-7740X
    151%
  • Intel Core i5-7640X
    100%

Relative performance

Reasons to consider Intel Core i7-7740X

11% higher single threaded performance.
Much higher multi threaded performance (around 51% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.
Around 31% higher average synthetic performance.

Reasons to consider Intel Core i5-7640X

None

Intel Core i7-7740X

Gaming

HWBench recommends Intel Core i7-7740X

Based on game and synthetic benchmarks, and theoretical specifications.

Intel Core i7-7740X

Productivity

HWBench recommends Intel Core i7-7740X

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


Specifications

Features

Intel Core i7-7740XIntel Core i5-7640X
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 i7-7740XIntel Core i5-7640X
ArchitectureIntel_KabylakevsIntel_Kabylake
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameKaby Lake-XvsKaby Lake-X
Release DateJun 2017vsJun 2017

Cores

Intel Core i7-7740XIntel Core i5-7640X
Cores4vs4
Threads8vs4
SMPs1vs1
Integrated GraphicsNovsNo

Cache

Intel Core i7-7740XIntel Core i5-7640X
L1 Cache64 KB (per core)vs64 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache8192 KB (shared)vs6144 KB (shared)

Physical

Intel Core i7-7740XIntel Core i5-7640X
SocketIntel Socket 2066vsIntel Socket 2066
Max Case Temp72°Cvs72°C
PackageFC-LGA2066vsFC-LGA2066
Die Size308mm²vs308mm²
Process14 nmvs14 nm

Performance

Intel Core i7-7740XIntel Core i5-7640X
Cpu Frequency4300 MHzvs3900 MHz
Turbo Clock4600 MHzvs4300 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP112 Wvs112 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-7740X
    5520 points
  • Intel Core i5-7640X
    5160 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-7740X
    24768 points
  • Intel Core i5-7640X
    18720 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Single 64Bit

  • Intel Core i7-7740X (simulated)
    214.67
  • Intel Core i5-7640X (simulated)
    192.96

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i7-7740X (simulated)
    1047.53
  • Intel Core i5-7640X (simulated)
    691.74

points - higher is better