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Intel Core i5-750S vs Intel Core i5-6400

Last updated: 2026-05-04

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 2 - 64 %

Intel Core i5-750S

Rank 1 - 100 %

Intel Core i5-6400

Multi-core performance

Rank 2 - 51 %

Intel Core i5-750S

Rank 1 - 100 %

Intel Core i5-6400

Geekbench 5, 64bit Single-Core
Single-core performance

4C / 4T · 3.20 GHz

539

4C / 4T · 3.30 GHz

841

Geekbench 5, 64bit Multi-Core
Multi-core performance

4C / 4T · 2.40 GHz

1,522

4C / 4T · 3.00 GHz

2,706

More benchmarks

Cinebench 2026 (ST)
218 entries

Cinebench 2026 (MC)
219 entries

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Cinebench R20 (SC)
666 entries

Geekbench 5 (SC)
2,512 entries

Cinebench R20 (MC)
615 entries

Geekbench 5 (MC)
2,483 entries

FP32 SP (iGPU)
2,219 entries

PassMark CPU-Mark
2,504 entries

Blender 2.81 (bmw27)
190 entries

CPU-Z Benchmark 17 (SC)
250 entries

CPU-Z Benchmark 17 (MC)
751 entries

V-Ray CPU-Render
251 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Cinebench R11.5 iGPU
383 entries

Specifications

At a glance

Wischen	Intel Core i5-750S	Intel Core i5-6400
Family	Intel Core i5 (336)	Intel Core i5 (336)
CPU group	Intel Core i5 700 (3)	Intel Core i 6000 (24)
Architecture	Lynnfield	Skylake S
Technology	45 nm	14 nm
Segment	Desktop	Desktop
Socket	LGA 1156	LGA 1151
Predecessor
Successor		Intel Core i5-7400

CPU Cores and Base Frequency

Wischen	Intel Core i5-750S	Intel Core i5-6400
CPU Cores / Threads	4 / 4	4 / 4
Hyperthreading / SMT	✗	✗
Core architecture	normal	normal
Cores:	4x	4x
Frequency:	2.40 GHz	2.70 GHz
Turbo (1 Core):	3.20 GHz	3.30 GHz
Turbo (All Cores):		3.00 GHz
L2-Cache	1.00 MB
L3-Cache	8.00 MB	6.00 MB
Overclocking	✗	✗

Integrated graphics (iGPU)

Wischen	Intel Core i5-750S	Intel Core i5-6400
GPU name	no iGPU	Intel HD Graphics 530
GPU frequency		0.35 - 0.95 GHz
CUs / Shader	/	24 / 192
Raytracing	✗	✗
Max. displays		3
Max. GPU Memory		32 GB
Technology		14 nm
Release date		Q3/2015

NPU AI performance

Wischen	Intel Core i5-750S	Intel Core i5-6400
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen	Intel Core i5-750S	Intel Core i5-6400
Memory	DDR3-1333 (21.3 GB/s) DDR3-1066 (17.1 GB/s)	DDR4-2133 (34.1 GB/s) DDR3-1600 (25.6 GB/s)
Max. Memory	16 GB	64 GB
Memory channels	2	2
ECC	No	No
PCIe	2.0 x 16	3.0 x 16
PCIe Bandwidth	8.0 GB/s	15.8 GB/s

Thermal Management

Wischen	Intel Core i5-750S	Intel Core i5-6400
TDP	82 W	65 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Wischen	Intel Core i5-750S	Intel Core i5-6400
Chip design	Monolithic	Monolithic
AES-NI	✗	✓
Operating systems	Windows 10, Linux	Windows 10, Linux
Instruction set	x86-64 (64 bit)	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2	SSE4.1, SSE4.2, AVX2
Release date	Q1/2010	Q3/2015
Release price	279 $
Documents	Technical data sheet	Technical data sheet

User Reviews

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-750S is 5.0 stars (1 ratings), while Intel Core i5-6400 has received 3.9 stars (33 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-750S
4C / 4T · 2.40 - 3.20 GHz

★★★★★

Intel Core i5-6400
4C / 4T · 2.70 - 3.30 GHz

★★★★★