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Intel

Core i5-8400

▲ 500 ▼

6 Cores, 6 Threads @2.80 GHz, Coffee Lake.
Release date ≈ Q2 2018.

Average Bench: 62.4% (541st of 1442)

Based on 100 user benchmarks.  Device: 0F8BFBFF000906EA Model: Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Poor: 32%Average: 62.4% Great: 86%
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 69%
Battle cruiser
Workstation
Workstation 48%
Yacht

Popular builds with this CPU

Above average average bench

The Intel Core i5-8400 averaged 37.5% 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. Single Core Speed 108Pts
Avg. Memory Latency 72.4Pts

Below average consistency

The range of scores (95th - 5th percentile) for the Intel Core i5-8400 is 54.6%. This is a relatively wide range which indicates that the Intel Core i5-8400 performs inconsistently under varying real world conditions.

Weaknesses

Avg. Multi Core Speed 348Pts
Avg. Octa Core Speed 343Pts
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Average Bench

(Based on 100 samples)
Rank 54162.4%
Min Avg Max
32 Memory 72.4 89.4
64.9 1-Core 108 125
51.5 2-Core 177 249
68.6% 119 Pts
Min Avg Max
80.7 4-Core 297 492
73.6 8-Core 343 711
41.7% 320 Pts
Min Avg Max
77.9 64-Core 348 717
21.5% 348 Pts
User Benchmarks BenchNormalHeavyServer
The fastest CPU (mainstream) averages a speed of 100%
CPU 0, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
78.3% Very good
Memory 74.5
1-Core 115
2-Core 231
77% 140 Pts
4-Core 446
8-Core 609
67% 528 Pts
64-Core 585
36% 585 Pts
CPU 0, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
77% Very good
Memory 79.2
1-Core 118
2-Core 234
80% 144 Pts
4-Core 404
8-Core 601
62% 502 Pts
64-Core 616
38% 616 Pts
CPU 0, 1 CPU, 4 cores, 4 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
69.7% Good
Memory 82.6
1-Core 76.3
2-Core 153
62% 104 Pts
4-Core 316
8-Core 396
46% 356 Pts
64-Core 390
24% 390 Pts
CPU 0, 1 CPU, 5 cores, 5 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
67.2% Good
Memory 69.9
1-Core 113
2-Core 226
74% 136 Pts
4-Core 363
8-Core 421
51% 392 Pts
64-Core 393
24% 393 Pts
CPU 0, 1 CPU, 4 cores, 4 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
64.3% Good
Memory 66.9
1-Core 106
2-Core 204
70% 126 Pts
4-Core 355
8-Core 360
48% 357 Pts
64-Core 356
22% 356 Pts
CPU 0, 1 CPU, 6 cores, 6 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
56.6% Above average
Memory 42.7
1-Core 99.9
2-Core 195
59% 113 Pts
4-Core 382
8-Core 527
57% 454 Pts
64-Core 571
35% 571 Pts
CPU 0, 1 CPU, 4 cores, 4 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
55.5% Above average
Memory 56.2
1-Core 101
2-Core 204
65% 120 Pts
4-Core 317
8-Core 311
42% 314 Pts
64-Core 322
20% 322 Pts
, 1 CPU, 2 cores, 2 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
43.7% Average
Memory 62.3
1-Core 95.3
2-Core 145
59% 101 Pts
4-Core 147
8-Core 145
20% 146 Pts
64-Core 149
9% 149 Pts
CPU 0, 1 CPU, 4 cores, 4 threads
Base clock 2.8 GHz, turbo 2.8 GHz (avg)
17.6% Very poor
Memory 2.91
1-Core 28.5
2-Core 89.1
18% 40.2 Pts
4-Core 171
8-Core 306
29% 238 Pts
64-Core 332
20% 332 Pts
100 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 67,793,019 CPUs tested

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 95 builds) See popular component choices, score breakdowns and rankings
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 78%
Battleship
Workstation
Workstation 65%
Battle cruiser

System: QEMU Standard PC (i440FX + PIIX, 1996)

CPU
Core i5-8400IntelBench 62%, 100 samples1x
GPU
GTX 1080-TiNvidia  $485Bench 124%, 840,268 samples8x
RTX 3060-TiNvidia  $340Bench 128%, 442,467 samples7x
RTX 3070Nvidia  $400Bench 148%, 619,642 samples5x
SSD
Force NVMe PCIe M.2 960GBCorsairBench 230%, 32,020 samples4x
SM841 mSATA 256GBSamsungBench 79%, 1,284 samples3x
HARDDISK 86GBQemuBench 42%, 75 samples3x
RAM
1x16GBQEMUBench 91%, 3,887 samples22x
2x16GBQEMUBench 108%, 1,370 samples12x
1x8GBQEMUBench 78%, 5,342 samples11x
EDIT WITH CUSTOM PC BUILDER Value: 60% - Good Total price: $485

Popular Core i5-8400 systems:

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Welcome to our 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 value for money upgrades.

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  • - 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
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  • - Reports are generated and presented on userbenchmark.com
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Processor Rankings (Price vs Performance) May 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]

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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™ i5-8400 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

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Speed Comparisons

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1442 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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ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $254Nvidia RTX 4060 $300Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $163Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $28Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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