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Intel BX80662I56400

Core i5-6400

▲ 5612,932 ▼

4 Cores, 4 Threads @2.7GHz, Skylake.
Release date: Q3 2015.

Average Bench: 60.8% (527th of 1404)

more Based on 171,457 user benchmarks.  Devices: BFEBFBFF000506E3, , BFEBFBFF000906E9, 0F8BFBFF000506E3, 0000000000000000, 1F8BFBFF000506E3, 0FABFBFF000506E3, 1FABFBFF000506E3 Models: Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz, Intel(R) Core(TM) i5-6400 CPU
Poor: 39%Average: 60.8% Great: 71%
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 45%
Yacht

Popular builds with this CPU

Above average average bench

The Intel Core i5-6400 averaged 39.1% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. Memory Latency 75.2Pts
Avg. Single Core Speed 84.6Pts

Above average consistency

The range of scores (95th - 5th percentile) for the Intel Core i5-6400 is 31.4%. This is a relatively narrow range which indicates that the Intel Core i5-6400 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 288Pts
Avg. Octa Core Speed 286Pts
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Average Bench

(Based on 171,457 samples)
Rank 52760.8%
Min Avg Max
44.5 Memory 75.2 86.8
61.8 1-Core 84.6 96.1
107 2-Core 166 189
63.1% 109 Pts
Min Avg Max
165 4-Core 267 335
193 8-Core 286 344
36.5% 276 Pts
Min Avg Max
203 64-Core 288 346
17.8% 288 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
U3E1, 1 CPU, 4 cores, 4 threads
Base clock 2.7 GHz, turbo 3.1 GHz (avg)
62.8% Good
Memory 77.1
1-Core 90
2-Core 183
67% 117 Pts
4-Core 283
8-Core 278
38% 281 Pts
64-Core 304
19% 304 Pts
1151, 1 CPU, 4 cores, 4 threads
Base clock 2.7 GHz, turbo 3.05 GHz (avg)
62.6% Good
Memory 76.2
1-Core 89.6
2-Core 181
66% 116 Pts
4-Core 282
8-Core 298
38% 290 Pts
64-Core 279
17% 279 Pts
LGA1151, 1 CPU, 4 cores, 4 threads
Base clock 2.7 GHz, turbo 3.1 GHz (avg)
61.9% Good
Memory 78.1
1-Core 75.9
2-Core 191
65% 115 Pts
4-Core 261
8-Core 291
36% 276 Pts
64-Core 319
20% 319 Pts
U3E1, 1 CPU, 4 cores, 4 threads
Base clock 2.7 GHz, turbo 3.1 GHz (avg)
61.5% Good
Memory 80.3
1-Core 86.9
2-Core 160
65% 109 Pts
4-Core 244
8-Core 272
34% 258 Pts
64-Core 272
17% 272 Pts
171,457 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 60,293,925 CPUs tested.

 Prices

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MSRP ≈ $187 @ launch in Sep '15
EbayUS $17011 mins
BHPhotoUS $1825 years
AmazonUS $31122 mins
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Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money.

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
Typical Core i5-6400 Builds (Compare 1,589 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 39%
Jet ski
Desktop
Desktop 72%
Battleship
Workstation
Workstation 31%
Sail boat

System: Asus G11CD

CPU
Core i5-6400Intel  $170Bench 61%, 171,457 samples933x
GPU
GTX 1060-6GBNvidia  $130Bench 56%, 1,368,019 samples346x
GTX 970Nvidia  $340Bench 49%, 834,238 samples286x
GTX 950Nvidia  $100Bench 26%, 111,509 samples146x
SSD
SD8SB8U512G1002 512GBSandiskBench 81%, 2,367 samples121x
HFS256G32MND-2200A 256GBBench 70%, 3,087 samples62x
SD8SBAT128G1002 128GBSandiskBench 58%, 3,654 samples58x
RAM
HMA41GU6AFR8N-TF 2x8GBHynixBench 73%, 22,760 samples260x
HMA41GU6AFR8N-TF 1x8GBHynixBench 39%, 16,202 samples246x
ASU21D4U5S8MB-8 2x8GBKingstonBench 67%, 1,185 samples96x
EDIT WITH CUSTOM PC BUILDER Value: 84% - Excellent Total price: $300

Popular Core i5-6400 systems:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchmark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Processor Rankings (Price vs Performance) March 2023 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Specifications

Essentials

DescriptionIntel® Core™ i5-6400 Processor (6M Cache, up to 3.30 GHz)
Code NameSkylake
Launch DateQ3'15
Processor Numberi5-6400
# of Cores4
# of Threads4
Cache6 MB SmartCache
Instruction Set64-bit
Instruction Set ExtensionsSSE4.1/4.2, AVX 2.0
Embedded Options AvailableNo
Lithography14 nm
Recommended Price$182.00 - $187.00
Clock Speed2.7 GHz
Max Turbo Frequency3.3 GHz
Bus Speed8 GT/s DMI3
Scalability1S Only
Max TDP65 W
Thermal Solution SpecificationPCG 2015C (65W)

Graphics

Processor GraphicsIntel® HD Graphics 530
Graphics Base Frequency350 MHz
Graphics OutputeDP/DP/HDMI/DVI
Wireless DisplayYes
# of Displays Supported3
Graphics Max Dynamic Frequency950 MHz
Quick Sync VideoYes
InTru 3D TechYes
Clear Video HD TechYes
Intel InsiderYes
Clear Video Tech for MIDYes
Graphics Video Max Memory64 GB

Memory

Max Memory Size64 GB
Memory TypesDDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Channels2
Memory Bandwidth34.1 GB/s
ECC Memory SupportedNo

Expansion Options

PCI Express Revision3.0
PCI Express ConfigurationsUp to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes16

Data Protection

AES New InstructionsYes
Secure KeyYes

Advanced Technologies

Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Thermal Monitoring TechnologiesYes
Turbo Boost Tech2.0
Hyper-Threading TechNo
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
TSX-NINo
vPro TechNo
Identity Protection TechYes
Stable Image Platform Program (SIPP)No
Small Business AdvantageYes

Package

Package Size37.5mm x 37.5mm
Graphics and IMC Lithography14 nm
Max CPU Configuration1
Sockets SupportedFCLGA1151

Platform Protection

Execute Disable BitYes
OS GuardYes
Trusted Execution TechNo

 Comments

CPUPro
Avatar level
2,053

Official site ark.intel.com/...

Skylake 6th generation Core i5 processor...

Added 7 years ago.
USA-User
Avatar level
9,310

Liked (edit your comment) Add link

5 days ago.

GBR-User
Avatar level
5,470

Excellent

5 months ago.

it is so flipping slow for gaming

Comment 

Decent performing CPU considering it's age, general computing tasks tend to run smoothly. CPU intensive games tend to suffer slightly, but overall a great foundation for a budget system. Would not recommend for newer builds however unless found at a low price as there are many more cost effective choices available.—Dec '20

NLD-User
Avatar level
3,316

Excellent

20 months ago.

Have used for years and runs really stable

TWN-User
Avatar level
2,738

Good

13 days ago.

Despite its age, still a cost effective processor when coupled with a right GPU

FIN-User
Avatar level
2,374

Terrible

22 months ago.

Runs games just fine to this day and doesn't really bottleneck my GTX 1070, wouldn't get it now since better alternatives exist

serebit
Avatar level
18

Average

3 years ago.

For a relatively cheap, outdated CPU, it performs just fine.

collinator24
Avatar level
6

Terrible

4 years ago.

Slow oem cpu, avoid.

patonoventa
Avatar level
2

Excellent

3 years ago.

Amazing Cost/Benefit CPU

badmaster12
Avatar level
2

Terrible

2 years ago.

if youre gaming, please dont buy, very slow even in games like Minecraft

Lisio
Avatar level
2

Excellent

2 years ago.

It is still a very good gaming processor, of course, faster than games in ryzów, I have a score of 98.6 and RAM 112-115 on it

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Speed Comparisons

vs Intel Core i5-13600K
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vs Intel Core i9-13900K
vs Intel Core i7-13700K
vs AMD Ryzen 5 3600
vs AMD Ryzen 5 5600X

1404 Processors (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
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What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $320Nvidia RTX 3060 $350Crucial MX500 250GB $34
Intel Core i5-12600K $194Nvidia RTX 3060-Ti $420Samsung 850 Evo 120GB $106
Intel Core i5-12400F $158Nvidia RTX 4070-Ti $830Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $43SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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