i5-8400B vs i5-8400H

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Primary details

Comparing Core i5-8400H and Core i5-8400B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1255not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i5Intel Core i5
Power efficiency10.12no data
Architecture codenameCoffee Lake-H (2018−2019)Coffee Lake (2017−2019)
Release date2 April 2018 (6 years ago)2 April 2018 (6 years ago)
Launch price (MSRP)$250$182

Detailed specifications

Core i5-8400H and Core i5-8400B basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)6 (Hexa-Core)
Threads86
Base clock speed2.5 GHz2.8 GHz
Boost clock speed4.2 GHz4 GHz
Bus typeDMI 3.0DMI 3.0
Bus rate4 × 8 GT/s4 × 8 GT/s
Multiplier2528
L1 cache64K (per core)384 KB
L2 cache256K (per core)1.5 MB
L3 cache12 MB (shared)9 MB
Chip lithography14 nm14 nm
Die size126 mm2126 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility++

Compatibility

Information on Core i5-8400H and Core i5-8400B compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCBGA1440FCBGA1440
Power consumption (TDP)45 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400H and Core i5-8400B. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
Speed Shift+no data
My WiFi+no data
Turbo Boost Technology2.02.0
Hyper-Threading Technology+-
TSX+-
Idle States++
Thermal Monitoring++
Flex Memory Access+no data
SIPP+-

Security technologies

Core i5-8400H and Core i5-8400B technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Key++
MPX++
Identity Protection++
SGXYes with Intel® MEYes with Intel® ME
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400H and Core i5-8400B are enumerated here.

AMD-V+-
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8400H and Core i5-8400B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-2666
Maximum memory size64 GB64 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/s42.671 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics 630Intel UHD Graphics 630
Max video memory64 GB64 GB
Quick Sync Video++
Clear Video++
Clear Video HD++
Graphics max frequency1.1 GHz1.05 GHz
InTru 3D++

Graphics interfaces

Available interfaces and connections of Core i5-8400H and Core i5-8400B integrated GPUs.

Number of displays supported33
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i5-8400H and Core i5-8400B integrated GPUs, including resolutions over different interfaces.

4K resolution support++
Max resolution over HDMI 1.44096x2304@30Hz4096x2304@30Hz
Max resolution over eDP4096x2304@60Hz4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz4096x2304@60Hz
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i5-8400H and Core i5-8400B integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.5

Peripherals

Specifications and connection of peripherals supported by Core i5-8400H and Core i5-8400B.

PCIe version3.03.0
PCI Express lanes1616

Pros & cons summary


Physical cores 4 6
Threads 8 6
Power consumption (TDP) 45 Watt 65 Watt

i5-8400H has 33.3% more threads, and 44.4% lower power consumption.

i5-8400B, on the other hand, has 50% more physical cores.

We couldn't decide between Core i5-8400H and Core i5-8400B. We've got no test results to judge.


Should you still have questions on choice between Core i5-8400H and Core i5-8400B, ask them in Comments section, and we shall answer.

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Intel Core i5-8400H
Core i5-8400H
Intel Core i5-8400B
Core i5-8400B

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Community ratings

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