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Processor comparison

Intel Core i7-990X vs Intel Core i5-6400

Intel

Intel Core i7-990X

Intel Socket 1366 3466 MHz 6 cores Feb 2011 DESKTOP
Intel Core i7-990X
Intel

Intel Core i5-6400

Intel Socket 1151 2700 MHz 4 cores Jul 2015 DESKTOP
Intel Core i5-6400

Summary

Synthetic performance index

  • Intel Core i7-990X118%
  • Intel Core i5-6400100%

Relative performance

Single thread performance index

  • Intel Core i7-990X100%
  • Intel Core i5-6400118%

Relative performance

Multi thread performance index

  • Intel Core i7-990X152%
  • Intel Core i5-6400100%

Relative performance

Reasons to consider the Intel Core i7-990X

  • Much higher multi threaded performance (around 52% higher). This allows for higher performance in professional applications like encoding or heavy multitasking.

Reasons to consider the Intel Core i5-6400

  • 18% 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).
No winner
Gaming

No clear winner declared

Intel Core i7-990X
Productivity

HWSpot recommends the Intel Core i7-990X

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

Specifications

Features

Intel Core i7-990XIntel Core i5-6400
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
vPro
Boost 2.0

Architecture

Intel Core i7-990XIntel Core i5-6400
ArchitectureIntel_WestmereIntel_Skylake
MarketDesktopDesktop
Memory SupportDDR3DDR4
CodenameGulftownSkylake
Release DateFeb 2011Jul 2015

Cores

Intel Core i7-990XIntel Core i5-6400
Cores64
Threads124
SMPs11
Integrated GraphicsNoNo

Cache

Intel Core i7-990XIntel Core i5-6400
L1 Cache64 KB (per core)64 KB (per core)
L2 Cache256 KB (per core)256 KB (per core)
L3 Cache12288 KB (shared)6144 KB (shared)

Physical

Intel Core i7-990XIntel Core i5-6400
SocketIntel Socket 1366Intel Socket 1151
Max Case Tempunknown72°C
PackageFC-LGA10FC-LGA12C
Die Size239mm²177mm²
Process32 nm14 nm

Performance

Intel Core i7-990XIntel Core i5-6400
Cpu Frequency3466 MHz2700 MHz
Turbo Clock3733 MHz3300 MHz
Base Clock133 MHz100 MHz
Voltage1.375 Vunknown
TDP130 W65 W

Raw performance index

Raw single-thread performance estimation

  • Intel Core i7-990X2986 points
  • Intel Core i5-64003795 points

Points - higher is better

Raw multi-thread performance estimation

  • Intel Core i7-990X16636 points
  • Intel Core i5-640012420 points

Points - higher is better

Synthetic benchmarks

GeekBench 3 (32-bit Multi Core)

  • Intel Core i7-990X14960
  • Intel Core i5-640010168

points - higher is better

GeekBench 3 (64-bit Single Core)

  • Intel Core i7-990X2923
  • Intel Core i5-64003324

points - higher is better

GeekBench 3 (64-bit Multi Core)

  • Intel Core i7-990X16262
  • Intel Core i5-640010338

points - higher is better

GeekBench 3 (32-bit Single Core)

  • Intel Core i7-990X2628
  • Intel Core i5-64003252

points - higher is better

Similar comparisons

Intel Core i7-990X vs AMD Athlon Gold PRO 3150GE Intel Core i7-990X AMD Athlon Gold PRO 3150GE Intel Core i7-990X vs AMD Athlon Gold 3150GE Intel Core i7-990X AMD Athlon Gold 3150GE Intel Core i5-6400 vs Intel Pentium Gold G6400 Intel Core i5-6400 Intel Pentium Gold G6400 Intel Core i5-6400 vs Intel Pentium Gold G6500 Intel Core i5-6400 Intel Pentium Gold G6500 AMD Ryzen 7 4700U vs AMD Ryzen 5 4600U AMD Ryzen 7 4700U AMD Ryzen 5 4600U AMD Ryzen 5 4600U vs AMD Ryzen 3 3300 AMD Ryzen 5 4600U AMD Ryzen 3 3300