Core i5-4670K vs Core i5-6400: CPU comparison

Performance score

Core i5-4670K 2013 · 4/4 cores/threads, 84 W

14.63 +5%

Core i5-6400 2015 · 4/4 cores/threads, 65 W

13.92

Core i3-12100F Core i5-12400F Ryzen 5 7500F Ryzen 7 7800X3D Ryzen 7 9800X3D Core Ultra 7 265K Core i9-14900K Ryzen 9 9950X

By our estimate, Core i5-4670K beats Core i5-6400 by 5%.

Different sockets (LGA1150 and LGA1151) — switching between them needs a different motherboard.

The score is our own estimate from the specs (cores, threads, clocks, architecture generation), not a benchmark run. 100 = the fastest CPU in our database.

Real tests

What the test measures

Blender is a popular free 3D graphics program. The test makes the device render three ready-made 3D scenes (light, shadows, reflections) and counts how many render passes it finishes per minute. The higher the number, the faster the device handles heavy work: 3D, video editing, photo processing. On a CPU the test loads all cores at once, so it shows the chip's full power; on a graphics card it shows its compute strength.

CPU rendering (Blender)

Core i5-4670K

53+66 %

faster than 31% of tested · runs: 4

Core i5-6400

32

faster than 11% of tested · runs: 1

Median of real test runs on users' computers. It does not show FPS in games. Data updated: 31.10.2026.

Overview

	Core i5-4670K	Core i5-6400
Score (0–100)	14.63	13.92
Ranking position	476	486
Power efficiency (0–100)	9.1	11.19
Type	Desktop	Desktop
Manufacturer	Intel	Intel
Architecture	Haswell	Skylake
Release date	Q2 2013	Q3 2015

Specifications

	Core i5-4670K	Core i5-6400
Cores	4	4
Threads	4	4
Base clock	3.4 GHz	2.7 GHz
Boost clock	3.8 GHz	3.3 GHz
L3 cache	6 MB	6 MB
Process node	22 nm	14 nm
Unlocked multiplier	yes	no
Integrated graphics	Intel HD Graphics 4600	Intel HD Graphics 530
NPU (AI accelerator)	no	no

Compatibility

	Core i5-4670K	Core i5-6400
Socket	LGA1150	LGA1151
TDP	84 W	65 W

Memory and PCI Express

	Core i5-4670K	Core i5-6400
Memory type	DDR3-1333/1600	DDR4-1866/2133
Memory channels	2	2
Max memory	32 GB	64 GB
PCI Express version	3.0	3.0
PCIe lanes	16	16

Pros and cons

Core i5-4670K

5% higher overall score
3% faster single core
unlocked multiplier (can be overclocked)

Core i5-6400

lower TDP: 65 W vs 84 W
newer: released in 2015

Other comparisons

Visitor rating

Questions and comments

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