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Intel BX80684I58400

Core i5-8400

▲ 625,401 ▼

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

Average Bench: 81.8% (231st of 1468)

Based on 312,220 user benchmarks.  Device: BFEBFBFF000906EA Model: Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

Poor: 61%Average: 81.8% Great: 89%
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser

Popular builds with this CPU

Very good average bench

The Intel Core i5-8400 averaged just 18.2% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Intel Core i5-8400 near the top of the comparison list.

Strengths

Avg. Memory Latency 84.9Pts
Avg. Quad Core Speed 434Pts

Good consistency

The range of scores (95th - 5th percentile) for the Intel Core i5-8400 is 28.4%. This is a relatively narrow range which indicates that the Intel Core i5-8400 performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 588Pts
Avg. Octa Core Speed 564Pts

Average Bench

(Based on 312,220 samples)
Rank 23181.8%
Min Avg Max
61.4 Memory 84.9 94.2
89.4 1-Core 113 120
181 2-Core 224 237
79.3% 141 Pts
Min Avg Max
321 4-Core 434 471
386 8-Core 564 657
63.6% 499 Pts
Min Avg Max
420 64-Core 588 675
36.4% 588 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
CPUSocket, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
89.9% Excellent
Memory 93.4
1-Core 119
2-Core 234
85% 149 Pts
4-Core 465
8-Core 671
71% 568 Pts
64-Core 682
42% 682 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
88.6% Excellent
Memory 94.2
1-Core 116
2-Core 234
84% 148 Pts
4-Core 457
8-Core 593
67% 525 Pts
64-Core 602
37% 602 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
87.3% Excellent
Memory 90
1-Core 116
2-Core 233
83% 146 Pts
4-Core 460
8-Core 630
69% 545 Pts
64-Core 578
36% 578 Pts
CPUSocket, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
85.3% Excellent
Memory 84.1
1-Core 117
2-Core 235
81% 145 Pts
4-Core 465
8-Core 668
71% 567 Pts
64-Core 675
42% 675 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
83% Excellent
Memory 81.2
1-Core 119
2-Core 236
81% 145 Pts
4-Core 457
8-Core 661
70% 559 Pts
64-Core 670
42% 670 Pts
312,220 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 69,049,505 CPUs tested

 Prices

If you buy via one of these links, our site may earn a commission

MSRP ≈ $200 @ launch in Oct '17
AmazonUS $11510 mins
EbayUS $16219 mins
BHPhotoUS $1724 years
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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 i5-8400 Builds (Compare 5,570 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 47%
Yacht
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 40%
Speed boat

Motherboard: MSI B360M BAZOOKA (MS-7B24)

CPU
Core i5-8400Intel  $115Bench 82%, 312,220 samples2,396x
GPU
RX 580AMD  $120Bench 52%, 360,351 samples830x
GTX 1060-3GBNvidia  $115Bench 52%, 627,793 samples632x
RTX 2060Nvidia  $140Bench 90%, 645,160 samples428x
SSD
Green 120GB (2018)WD  $39Bench 43%, 69,933 samples206x
Green 240GB (2018)WD  $51Bench 45%, 156,194 samples170x
860 Evo 500GBSamsung  $80Bench 105%, 762,998 samples104x
RAM
M378A1K43CB2-CTD 2x8GBSamsungBench 80%, 29,586 samples249x
DDR4 2400 2OZ 1x8GBUnknownBench 40%, 8,909 samples196x
Vengeance LPX DDR4 2666 C16 2x8GBCorsair  $36Bench 77%, 131,007 samples141x
EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $274

Popular Core i5-8400 compatible motherboards:

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Processor Rankings (Price vs Performance) November 2024 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]

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™ i5-8400 Processor (9M Cache, up to 4.00 GHz)
Code NameCoffee Lake
Launch DateQ4'17
Processor Numberi5-8400
# of Cores6
# of Threads6
Cache9 MB
Instruction Set64-bit
Instruction Set ExtensionsSSE4.1/4.2, AVX2
Embedded Options AvailableNo
Lithography14 nm
Recommended PriceN/A
Clock Speed2.80 GHz
Max Turbo Frequency4.00 GHz
Bus Speed8 GT/s DMI3
Scalability1S Only
Max TDP65 W
Thermal Solution SpecificationPCG 2015C (65W)

Graphics

Processor GraphicsIntel® UHD Graphics 630
Graphics Base Frequency350 MHz
# of Displays Supported3
Graphics Max Dynamic Frequency1.05 GHz
Quick Sync VideoYes
InTru 3D TechYes
Clear Video HD TechYes
Clear Video Tech for MIDYes
Graphics Video Max Memory64 GB

Memory

Max Memory Size64 GB
Memory TypesDDR4-2666
Memory Channels2
ECC Memory SupportedNo

Expansion Options

PCI Express Revision3.0
PCI Express ConfigurationsUp to 1x16 or 2x8 or 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

Package

Package Size37.5mm x 37.5mm
Max CPU Configuration1

Platform Protection

Execute Disable BitYes
OS GuardYes
Trusted Execution TechNo

 Comments

CPUPro
Avatar level
2,119

Official site ark.intel.com/...

8th generation Coffee Lake processor...

Added 7 years ago.
USA-User
Avatar level
10,046

Poor (edit your comment) Add link

2 days ago.

so good i tried before 5years it was so strong and powerful i got it in 4k games very good with GTX 1080Ti

GBR-User
Avatar level
5,908

Excellent

14 days ago.

it works on star powerful games quite well

ESP-User
Avatar level
3,815

Excellent

7 months ago.

better deals with ryzen cpu´s

CZE-User
Avatar level
3,416

Average

3 months ago.

Pretty fine for basic FHD, high textures loadout gaming :)

ARG-User
Avatar level
3,296

Good

4 months ago.

It performs great with everything

COL-User
Avatar level
3,030

Good

2 years ago.

good performance with multiple tasks

BGR-User
Avatar level
2,944

Terrible

21 months ago.

It's the best Intel performer for the money, also it's definitely doing a decent job as a gaming and also as video editing/rendering CPU.

SRB-User
Avatar level
2,866

Good

28 days ago.

Great value for money. No bottleneck in current game titles

BEL-User
Avatar level
2,608

Excellent

3 years ago.

Bang for your buck performance!

FIN-User
Avatar level
2,598

Average

6 months ago.

i have this i5 but idont have good cs:go fps but that was better than i7 6700

ISR-User
Avatar level
2,406

Good

11 months ago.

having a realy hard time in 2021 games.

CPUPro
Avatar level
2,119

Good

7 years ago.

CYP-User
Avatar level
1,380

Poor

2 years ago.

when gaming cpu is at 80% average....on the other side ryzen 5 2600 has 30% average

ColdSpy
Avatar level
330

Excellent

4 years ago.

Decent gaming performance back when Coffee Lake was released. Was my all time favorite CPU as this CPU comes with 6 core and 6 thread at 2.8GHz base clock and 4.0GHz boost clock which is decent enough for every users.

rai7
Avatar level
42

Good

5 years ago.

i dont get why people dont talk about this cpu as much, looks worth the money

moonhi123
Avatar level
42

Poor

5 years ago.

너무 비싸

ProshotJake
Avatar level
28

Good

4 years ago.

I was able to buy this cpu at a heavy discount off a friend who upgraded, this chip surprised me with how well it preformed!

Promaxinjer
Avatar level
20

Excellent

6 years ago.

This cpu is great with that price and six core perfomance

Wheejo2077
Avatar level
8

Excellent

6 years ago.

It's very very decent cpu I've bought. Love it!

SovietMicrowave
Avatar level
8

Good

2 years ago.

i ocerclocked to 3.5GHz and its working great

HRCMrPink
Avatar level
6

Excellent

5 years ago.

Love it. Great CPU

Calixen
Avatar level
4

Good

6 years ago.

Great budget CPU, in terms of quality and price, this is great to use and have, even if you plan to upgrade later, this could be the last thing to upgrade

walid_ceza
Avatar level
4

Excellent

4 years ago.

still worth it at 2020 ,

Wenez
Avatar level
2

Excellent

7 years ago.

Nice 6 cores for good price.

brando7mm
Avatar level
2

Excellent

6 years ago.

PUBG 80 FPS ULTRA Using 40 ~60 % CPU And my 1070 at 98~100% hehehe Monster CPU

fosterrf
Avatar level
2

Good

6 years ago.

Good value, good combination of single/multi-core performance. Latest Intel chipset provides path for future upgrades.

FireAndRice
Avatar level
2

Excellent

6 years ago.

Bang for buck with games.

mendacity
Avatar level
2

Excellent

5 years ago.

It cheap and will give you opportunity to get higher level

vaappu79
Avatar level
2

Excellent

5 years ago.

Can "overclock" it oldschool by raising bclk. Asus ROG strix z370f motherboard. 4.15Ghz is maximum though.

Tom88Cz1
Avatar level
2

Good

3 years ago.

I had Intel Core2 Duo E7200 and this is my upgrade

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Speed Comparisons

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

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The Best
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Intel Core i5-13600K $210Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $125
Intel Core i5-12600K $160Nvidia RTX 4060-Ti $389WD Black SN850X M.2 1TB $80
Intel Core i5-12400F $111Nvidia RTX 4070 $500Crucial T700 M.2 4TB $330
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