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Intel Core i5-6400 Benchmark, Test and specs

Last updated: 2024-03-06

The Intel Core i5-6400 was released in Q3/2015 and has 4 cores. The processor can process 4 threads simultaneously and uses a mainboard with the socket LGA 1151. In the Geekbench 5 benchmark, the Intel Core i5-6400 achieved a result of 841 points (single-core) or 2,706 points (multi-core).

At a glance
Name:	Intel Core i5-6400
Family:	Intel Core i5 (336)
CPU group:	Intel Core i 6000 (24)
Architecture:	Skylake S
Technology:	14 nm
Segment:	Desktop
Generation:	6
Predecessor:	--
Successor:	Intel Core i5-7400

CPU Cores and Base Frequency

The Intel Core i5-6400 has 4 cores. The clock frequency of the Intel Core i5-6400 is 2.70 GHz (3.30 GHz). An initial performance assessment can be made using the number of CPU cores.

CPU Cores / Threads:	4 / 4
Core architecture:	normal
Cores:	4x

Hyperthreading / SMT:	No
Overclocking:	No
Frequency:	2.70 GHz
Turbo Frequency (1 Core):	3.30 GHz
Turbo Frequency (4 Cores):	3.00 GHz

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AI hardware:	--
AI specifications:	--
NPU + CPU + iGPU:	--

Integrated graphics (iGPU)

The Intel Core i5-6400 has an integrated graphics that the system can use to efficiently play back videos. The Intel Core i5-6400 has the Intel HD Graphics 530 installed, which has 24 streaming multiprocessors (192 shaders).

GPU name:	Intel HD Graphics 530
GPU frequency:	0.35 GHz
GPU (Turbo):	1.15 GHz
Compute units:	24
Shader:	192
Hardware Raytracing:	No
Release date:	Q3/2015

Max. displays:	3
Generation:	9
Direct X:	12
Technology:	14 nm
Max. GPU Memory:	32 GB
Frame Generation:	No

Hardware codec support

Processors with integrated graphics can process video codecs faster. Support for modern codecs can significantly increase system efficiency during video playback.

h265 / HEVC (8 bit):	Decode / Encode
h265 / HEVC (10 bit):	Decode
h264:	Decode / Encode
VP8:	Decode / Encode
VP9:	Decode

AV1:	No
AVC:	Decode / Encode
VC-1:	Decode
JPEG:	Decode / Encode

Memory type:	Memory bandwidth:
Memory & PCIe The Intel Core i5-6400 supports a maximum of 64 GB memory. Depending on the mainboard, the processor can use a maximum of 2 (Dual Channel) memory channels. This results in a maximum bandwidth of the main memory of 34.1 GB/s.

DDR4-2133 DDR3-1600	34.1 GB/s 25.6 GB/s
Max. Memory:	64 GB
Memory channels:	2 (Dual Channel)
ECC:	No
PCIe:	3.0 x 16
PCIe Bandwidth:	15.8 GB/s

Thermal Management The Intel Core i5-6400 has a TDP of 65 W. Based on the TDP, the system manufacturer can and must adapt the cooling solution to the processor.

TDP (PL1 / PBP):	65 W
TDP (PL2):	--
TDP up:	--
TDP down:	--
Tjunction max.:	--

Technical details

Modern production reduces the waste heat of a processor and increases its efficiency. The Intel Core i5-6400 is made in 14 nm and has 6.00 MB cache.

Technology:	14 nm
Chip design:	Monolithic
Socket:	LGA 1151
L2-Cache:	--
L3-Cache:	6.00 MB
AES-NI:	Yes
Operating systems:	Windows 10, Linux

Virtualization:	VT-x, VT-x EPT, VT-d
Instruction set (ISA):	x86-64 (64 bit)
ISA extensions:	SSE4.1, SSE4.2, AVX2
Release date:	Q3/2015
Release price:	--
Part Number:	--
Documents:	Technical data sheet

Intel Core i5-6400
4C 4T @ 2.70 GHz (3.30 GHz)

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Benchmark results

The benchmark results for the Intel Core i5-6400 have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.

Geekbench 6 (Single-Core)

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.


	Intel Core i5-4590 4C 4T @ 3.70 GHz	1137
	Intel Core i5-9400T 6C 6T @ 3.40 GHz	1137
	AMD Ryzen Threadripper 1900X 8C 16T @ 4.00 GHz	1136
	Intel Core i5-6400 4C 4T @ 3.30 GHz	1134
	Intel Core i5-7500T 4C 4T @ 3.30 GHz	1134
	Intel Core i7-5930K 6C 12T @ 3.70 GHz	1132
	Intel Xeon E5-2678 v3 12C 24T @ 3.30 GHz	1131

Geekbench 6 (Multi-Core)

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.


	Intel Core i5-4570S 4C 4T @ 3.20 GHz	3113
	Intel Core i5-4690S 4C 4T @ 3.50 GHz	3089
	Intel Xeon D-1520 4C 8T @ 2.20 GHz	3088
	Intel Core i5-6400 4C 4T @ 3.00 GHz	3086
	Intel Xeon Bronze 3106 8C 8T @ 1.70 GHz	3082
	Intel Core i5-6500T 4C 4T @ 2.80 GHz	3068
	Intel Xeon D-1528 6C 12T @ 1.90 GHz	3066

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Xeon E5-2695 v3 14C 28T @ 3.30 GHz	842
	Intel Xeon Gold 6140M 18C 36T @ 3.70 GHz	842
	Intel Xeon Silver 4110 8C 16T @ 3.00 GHz	842
	Intel Core i5-6400 4C 4T @ 3.30 GHz	841
	Intel Core i3-4340 2C 4T @ 3.60 GHz	841
	Intel Xeon Silver 4108 8C 16T @ 3.00 GHz	841
	Intel Xeon E5-2630 v3 8C 16T @ 3.20 GHz	841

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i5-3550 4C 4T @ 3.30 GHz	2741
	Intel Core i5-4460 4C 4T @ 3.30 GHz	2722
	Intel Core i5-7500T 4C 4T @ 3.10 GHz	2718
	Intel Core i5-6400 4C 4T @ 3.00 GHz	2706
	Intel Core i3-8100T 4C 4T @ 3.10 GHz	2700
	Intel Core i7-4701EQ 4C 8T @ 3.00 GHz	2698
	Intel Core i7-4700EQ 4C 8T @ 3.00 GHz	2698

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Xeon E5-1620 v2 4C 8T @ 3.90 GHz	284
	Intel Xeon Silver 4116 12C 24T @ 3.00 GHz	284
	Intel Core i5-4430 4C 4T @ 3.20 GHz	280
	Intel Core i5-6400 4C 4T @ 3.30 GHz	275
	Intel Core i5-3570K 4C 4T @ 3.80 GHz	275
	Intel Xeon E5-2640 v3 8C 16T @ 3.40 GHz	271
	Intel Core i7-3930K 6C 12T @ 3.80 GHz	269

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD FX-8300 8C 8T @ 4.00 GHz	1088
	Intel Core i3-7300 2C 4T @ 4.00 GHz	1084
	AMD FX-8320 8C 8T @ 3.75 GHz	1082
	Intel Core i5-6400 4C 4T @ 3.00 GHz	1061
	Intel Xeon X3470 4C 8T @ 3.20 GHz	1048
	Intel Core i5-3570K 4C 4T @ 3.80 GHz	1041
	AMD FX-6350 6C 6T @ 4.20 GHz	1038

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.


	Intel Core i7-7700 Intel HD Graphics 630 @ 1.15 GHz	442
	Intel Core i7-7700K Intel HD Graphics 630 @ 1.15 GHz	442
	Intel Core i7-7700T Intel HD Graphics 630 @ 1.15 GHz	442
	Intel Core i5-6400 Intel HD Graphics 530 @ 1.15 GHz	442
	AMD A8-6500 AMD Radeon HD 8570D @ 0.84 GHz	432
	AMD A8-6600K AMD Radeon HD 8570D @ 0.84 GHz	432
	AMD FX-7500 AMD Radeon R7 - 512 (Kaveri) @ 0.55 GHz	425

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	Intel Core i5-4570 4C 4T @ 3.40 GHz	5218
	Intel Xeon D-1527 4C 8T @ 2.20 GHz	5217
	Intel Xeon E3-1220 v3 4C 4T @ 3.50 GHz	5199
	Intel Core i5-6400 4C 4T @ 3.00 GHz	5177
	Intel Core i5-4590S 4C 4T @ 3.30 GHz	5122
	Intel Core i7-4765T 4C 8T @ 2.00 GHz	5095
	Intel Core i5-5575R 4C 4T @ 3.10 GHz	5086

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.


	Intel Core i5-4570 4C 4T @ 3.40 GHz	699
	AMD Ryzen 3 2200G 4C 4T @ 3.65 GHz	701.4
	Intel Xeon E3-1225 v3 4C 4T @ 3.60 GHz	707.1
	Intel Core i5-6400 4C 4T @ 3.00 GHz	730
	Intel Core i7-2600K 4C 8T @ 3.80 GHz	741.6
	Intel Core i5-2500k 4C 4T @ 3.70 GHz	778.7
	AMD FX-9370 8C 8T @ 4.70 GHz	787.9

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i5-2500k 4C 4T @ 3.70 GHz	372
	Intel Core i7-3770 4C 8T @ 3.90 GHz	368
	Intel Core i7-2600K 4C 8T @ 3.80 GHz	365
	Intel Core i5-6400 4C 4T @ 3.30 GHz	359
	AMD Ryzen 5 1400 4C 8T @ 3.40 GHz	357
	Intel Core i3-6100 2C 4T @ 3.70 GHz	357
	Intel Core i5-4460 4C 4T @ 3.40 GHz	353

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i7-2600S 4C 8T @ 2.80 GHz	1395
	AMD Ryzen 3 1200 4C 4T @ 3.10 GHz	1372
	Intel Core i5-4460 4C 4T @ 3.20 GHz	1369
	Intel Core i5-6400 4C 4T @ 2.70 GHz	1360
	Intel Core i5-3470 4C 4T @ 3.20 GHz	1350
	AMD FX-8320 8C 8T @ 3.50 GHz	1350
	Intel Core i5-2500k 4C 4T @ 3.30 GHz	1336

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i5-7500T 4C 4T @ 3.30 GHz	141
	Intel Core i7-4770 4C 8T @ 3.90 GHz	141
	Intel Core i7-4770K 4C 8T @ 3.90 GHz	141
	Intel Core i5-6400 4C 4T @ 3.30 GHz	140
	Intel Core i7-5850EQ 4C 8T @ 3.40 GHz	140
	Intel Core i5-4570 4C 4T @ 3.60 GHz	140
	Intel Core i5-4570S 4C 4T @ 3.60 GHz	140

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i5-4590 4C 4T @ 3.50 GHz	505
	Intel Core i5-4690S 4C 4T @ 3.50 GHz	505
	AMD Phenom II X6 1100T 6C 6T @ 3.70 GHz	501
	Intel Core i5-6400 4C 4T @ 3.00 GHz	497
	Intel Xeon X3470 4C 8T @ 3.20 GHz	494
	Intel Core i5-4570 4C 4T @ 3.40 GHz	491
	Intel Core i5-4460 4C 4T @ 3.30 GHz	477

Benchmarks

Geekbench 6 (SC)
1,867 entries

Geekbench 6 (MC)
1,801 entries

Geekbench 5 (SC)
2,508 entries

Geekbench 5 (MC)
2,475 entries

Cinebench R20 (SC)
663 entries

Cinebench R20 (MC)
611 entries

FP32 SP (iGPU)
2,154 entries

PassMark CPU-Mark
2,446 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
240 entries

CPU-Z Benchmark 17 (MC)
742 entries

V-Ray CPU-Render
250 entries

Cinebench R15 (SC)
1,108 entries

Cinebench R15 (MC)
1,104 entries

Geekbench 3 (SC)
942 entries

Geekbench 3 (MC)
938 entries

Cinebench R11.5 (SC)
825 entries

Cinebench R11.5 (MC)
836 entries

Cinebench R11.5 iGPU
383 entries

Description of the processor

The Intel Core i5-6400 was released in the third quarter of 2015 and is part of the sixth generation of the Intel Core i5 family. The processor is manufactured with a structure width of 14 nanometers, in a monolithic chip design and is based on Intels Skylake S architecture. The Level 3 cache of the Intel Core i5-6400 is 6.00 megabytes and requires a mainboard equipped with the LGA 1151 socket.

The Intel Core i5-6400 is a quad-core processor, so it has 4 physical cores. Hyperthreading technology is not supported by the processor and a free multiplier that would allow the processor to be overclocked is also missing. The base clock frequency of the processor cores is 2.70 gigahertz and the maximum turbo clock is 3.30 gigahertz. However, this maximum clock rate is only achieved when a single core is fully utilized. If all cores are fully utilized at the same time, the maximum clock rate is still 3.00 gigahertz.

The processor can be operated with a dedicated graphics card; 16 PCIe lanes in version 3.0 are available, which enable a maximum bandwidth of 15.8 GB/s. The Intel Core i5-6400 is also equipped with an internal graphics unit. The in-house Intel HD Graphics 530 is used here. This graphics unit is equipped with 24 execution units and 192 shaders. The base clock of the iGPU is 350 megahertz and the maximum dynamic clock (turbo clock) is up to 1.15 gigahertz. The graphics unit is also manufactured using the 14 nanometer process and is able to supply up to 3 monitors with one image. The RAM built into the system serves as graphics memory, of which the graphics unit can access up to 32 gigabytes.

The processor itself is equipped with 2 memory channels and can be operated with up to 64 gigabytes of DDR3-1600 or DDR4-2133 RAM.

Popular comparisons


1.		Intel Core i5-6400 vs Intel Core i5-4460
2.		Intel Core i5-6400 vs Intel Core i5-6500
3.		Intel Core i3-6100 vs Intel Core i5-6400
4.		AMD A10-7800 vs Intel Core i5-6400
5.		Intel Core i7-6700 vs Intel Core i5-6400
6.		Intel Core i5-7400 vs Intel Core i5-6400
7.		Intel Core i5-6400 vs Intel Core i3-7100
8.		Intel Core i3-8100 vs Intel Core i5-6400
9.		Intel Core i5-6400 vs Intel Core i5-4590
10.		Intel Core i5-6400 vs AMD FX-6300

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