Intel Core i7-7740X vs Intel Core i7-6800K

Intel Core i7-7740X
Intel Socket 2066DESKTOP
4300 MHz / Cores: 4 / Jun 2017
Intel Core i7-7740X
Intel Core i7-6800K
Intel Socket 2011-3DESKTOP
3400 MHz / Cores: 6 / May 2016
Intel Core i7-6800K

Summary

Synthetic performance index

  • Intel Core i7-7740X
    117%
  • Intel Core i7-6800K
    100%

Relative performance

Single thread performance index

  • Intel Core i7-7740X
    139%
  • Intel Core i7-6800K
    100%

Relative performance

Multi thread performance index

  • Intel Core i7-7740X
    100%
  • Intel Core i7-6800K
    104%

Relative performance

Reasons to consider Intel Core i7-7740X

Much higher single threaded performance (around 39% higher), makes a noticeable performance difference in gaming and the majority of applications.

Reasons to consider Intel Core i7-6800K

None

No winner

Gaming

No clear winner declared


No winner

Productivity

No clear winner declared



Specifications

Features

Intel Core i7-7740XIntel Core i7-6800K
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 i7-6800K
ArchitectureIntel_KabylakevsIntel_Broadwell
MarketDesktopvsDesktop
Memory SupportDDR4vsDDR4
CodenameKaby Lake-XvsBroadwell-E
Release DateJun 2017vsMay 2016

Cores

Intel Core i7-7740XIntel Core i7-6800K
Cores4vs6
Threads8vs12
SMPs1vs1
Integrated GraphicsNovsNo

Cache

Intel Core i7-7740XIntel Core i7-6800K
L1 Cache64 KB (per core)vs32 KB (per core)
L2 Cache256 KB (per core)vs256 KB (per core)
L3 Cache8192 KB (shared)vs15360 KB (shared)

Physical

Intel Core i7-7740XIntel Core i7-6800K
SocketIntel Socket 2066vsIntel Socket 2011-3
Max Case Temp72°Cvs72°C
PackageFC-LGA2066vs
Die Size308mm²vsunknown
Process14 nmvs14 nm

Performance

Intel Core i7-7740XIntel Core i7-6800K
Cpu Frequency4300 MHzvs3400 MHz
Turbo Clock4600 MHzvs3800 MHz
Base Clock100 MHzvs100 MHz
Voltageunknownvsunknown
TDP112 Wvs140 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-7740X
    5520 points
  • Intel Core i7-6800K
    4256 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-7740X
    24768 points
  • Intel Core i7-6800K
    27417 points

Points - higher is better

Synthetic benchmarks

Cinebench R15 CPU Single 64Bit

  • Intel Core i7-7740X (simulated)
    214.67
  • Intel Core i7-6800K
    154

points - higher is better

Cinebench R15 CPU Multi 64Bit

  • Intel Core i7-7740X (simulated)
    1047.53
  • Intel Core i7-6800K
    1096

points - higher is better