Average Bench: 92.5% (25th of 1052)

Based on 6,586 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: 87%Average: 92.5% Great: 96%
Gaming 92%
Nuclear submarine
Desktop 89%
Aircraft carrier
Workstation 67%
Battle cruiser

Excellent average bench

The Intel Core i5-8400 averaged just 7.5% 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.


Multi Core Integer Speed 664Pts
Quad Core Floating Point Speed 487Pts

Excellent consistency

The range of scores (95th - 5th percentile) for the Intel Core i5-8400 is just 9.05%. This is an extremely narrow range which indicates that the Intel Core i5-8400 performs superbly consistently under varying real world conditions.


Single Core Integer Speed 117Pts
Avg. Single Core Mixed Speed 121Pts

Average Bench

(Based on 6,586 samples)
Min Avg Max
111 SC Int 117 122
118 SC Float 124 129
114 SC Mixed 121 126
96.5% 121 Pts
Min Avg Max
419 QC Int 456 476
452 QC Float 487 504
438 QC Mixed 470 488
107% 471 Pts
Min Avg Max
572 MC Int 664 703
630 MC Float 714 746
592 MC Mixed 686 724
103% 688 Pts
User Benchmarks Bench Single core Quad core Multi core
The fastest CPU (mainstream) averages a speed of 100%
LGA1151, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
SC Int 124
SC Float 131
SC Mixed 128
102% 127 Pts
QC Int 481
QC Float 513
QC Mixed 495
112% 496 Pts
MC Int 701
MC Float 761
MC Mixed 727
109% 730 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
SC Int 122
SC Float 127
SC Mixed 123
99% 124 Pts
QC Int 468
QC Float 497
QC Mixed 482
109% 482 Pts
MC Int 635
MC Float 709
MC Mixed 678
101% 674 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.7 GHz (avg)
SC Int 114
SC Float 120
SC Mixed 117
94% 117 Pts
QC Int 454
QC Float 480
QC Mixed 466
106% 467 Pts
MC Int 675
MC Float 717
MC Mixed 694
104% 696 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
SC Int 114
SC Float 120
SC Mixed 112
92% 115 Pts
QC Int 452
QC Float 475
QC Mixed 452
104% 460 Pts
MC Int 682
MC Float 660
MC Mixed 618
98% 654 Pts
U3E1, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 3.8 GHz (avg)
SC Int 99.2
SC Float 107
SC Mixed 100
82% 102 Pts
QC Int 333
QC Float 379
QC Mixed 348
80% 353 Pts
MC Int 524
MC Float 627
MC Mixed 640
89% 597 Pts
6,586 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 7,873,873 CPUs tested.


Approx. $200 @ launch in Oct '17
AmazonUS $17911 mins
NeweggUS $1809 hrs
OutletPCUS $18712 days
Send price feedback
Typical Core i5-8400 Builds (Compare 2,964 builds) See popular component choices, score breakdowns and rankings.
Gaming 72%
Desktop 81%
Aircraft carrier
Workstation 62%

Motherboard: MSI Z370-A PRO (MS-7B48) - $120

EDIT WITH CUSTOM PC BUILDER Value: 84% - Excellent Total price: $917

Popular Core i5-8400 compatible motherboards:

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Processor Rankings (Price vs Performance) March 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.



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)


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


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
vPro TechNo
Identity Protection TechYes
Stable Image Platform Program (SIPP)No


Package Size37.5mm x 37.5mm
Max CPU Configuration1

Platform Protection

Execute Disable BitYes
OS GuardYes
Trusted Execution TechNo


8th generation Coffee Lake processor....

Added 5 months ago.

Good (edit your comment) Add link

6 days ago.

Great price for this cpu, 4 ghz on all cores which is all I need for gaming. Perfect for getting a z370 because when I want to upgrade to the 8600k or 8700k i already have the board (and board prices i think are reasonable)


8 hrs ago.

it's good for now but in the future like 2 years later it will be the same performance as ryzen 1600 and xeon e3-1650


2 days ago.

Best for Gaming


16 hrs ago.

en iyi fiyat performans işlemcisi


2 days ago.

newest lol


18 days ago.


2 days ago.

intel woke up too late, if not amd they would still sell people older technology.


8 days ago.

more cores at relatively effective price, and better cache than 7700


20 hrs ago.

2.6 turbo'd out to 3.8 is not funny


14 days ago.

Best Option !


26 days ago.

good one


12 days ago.

Quite reasonable price


17 days ago.

i love intel core i5 8400


5 months ago.


5 days ago.



8 days ago.

i love it: super cost saver


4 months ago.

Best Value for gaming, and it has 6 cores


5 months ago.

Nice 6 cores for good price.


3 months ago.

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

1052 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

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Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $139
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $140
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Seagate Barracuda 7200.14 1TB $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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