Intel Core i5 6400 

Released July, 2015
  • 2.7 GHz
  • Quad core

Benchmarks Real world tests of the Intel Core i5 6400

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i5 6400
24.49 mHash/s
Core i5 4460
8.3 mHash/s

CompuBench 1.5 (Face detection)

Core i5 6400
19.56 mPixels/s
Core i5 4460
15.21 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i5 6400
1.35 fps
Core i5 4460
1.01 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i5 6400
Core i5 4460

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i5 6400
Core i5 4460

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i5 6400
155.25 MB/s
Core i5 4460
4,300,000 MB/s

PassMark Data courtesy Passmark

Core i5 6400
Core i3 6100
Core i5 4460

PassMark (Single Core)

Core i5 6400
Core i3 6100
Core i5 4460

Specifications Full list of technical specs


Clock speed 2.7 GHz
Turbo clock speed 3.3 GHz
Cores Quad core
Is unlocked No


Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. AES
  3. SSE
  4. SSE2
  5. SSE4.1
  6. SSE3
  7. Supplemental SSE3
  8. SSE4.2
  9. AVX 2.0
  10. AVX
  11. SSE4
Supports dynamic frequency scaling Yes

power consumption

Annual home energy cost 15.66 $/year
Annual commercial energy cost 56.94 $/year
Performance per watt 2.82 pt/W
Typical power consumption 52.81W


Architecture FSB
Transfer rate 8,000 MT/s


Architecture x86-64
Threads 4 threads
L3 cache 6 MB
L3 cache per core 1.5 MB/core
Manufacture process 14 nm
Max CPUs 1
Operating temperature Unknown - 71°C


Overclocked clock speed 3.67 GHz
Overclocked clock speed (Water) 4.34 GHz
Overclocked clock speed (Air) 3.67 GHz

integrated graphics

Label Intel® HD Graphics 530
Number of displays supported 3
GPU clock speed 350 MHz
Turbo clock speed 950 MHz

memory controller

Memory controller Built-in
Memory type DDR3L-1600
Channels Dual Channel
Supports ECC No
Maximum bandwidth 25,600 MB/s
Maximum memory size 65,536 MB
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Showing 3 comments.
idk why you think it isnt good for gaming, honestly the GPU is much more of a concern when getting into which is better for game preformance.....
i5-6400 is not a good CPU for gaming, it's worse than lowbudget AMD A8-7600 an 70 EUR APU, which is made for low budget Office-PCs:
Intel Core i5 6400 or Intel Boxed Core I5-6600K? Which one is best for gaming? Can you tell me the Pros and Cons?
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