Intel Core I5-8400H: Specs And Benchmarks - Technical City

Summary

Intel started Core i5-8400H sales 2 April 2018 at a recommended price of $250. This is a Coffee Lake-H architecture notebook processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 4200 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1440 processor with a TDP of 45 Watt and a maximum temperature of 72 °C. It supports DDR4 memory.

Primary details

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

Place in the ranking	1530
Place by popularity	not in top-100
Cost-effectiveness evaluation	1.54
Market segment	Laptop
Series	Intel Core i5
Power efficiency	3.99	of 100.00 (Apple M4 (8 cores))
Designer	Intel
Manufacturer	Intel
Architecture codename	Coffee Lake-H (2018−2019)
Release date	2 April 2018 (7 years ago)
Launch price (MSRP)	$250	of 19,000 (Xeon 6788P)

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	4 (Quad-Core)
Threads	8
Base clock speed	2.5 GHz	of 4.7 GHz (FX-9590)
Boost clock speed	4.2 GHz	of 6.2 GHz (Core i9-14900KS)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Multiplier	25	of 42 (Core i7-7700K)
L1 cache	64K (per core)	of 80 KB (EPYC 9965)
L2 cache	256K (per core)
L3 cache	12 MB (shared)	of 1152 MB (EPYC 9684X)
Chip lithography	14 nm	of 3 nm (Apple M3 Max 16-Core)
Die size	126 mm2
Maximum core temperature	100 °C	of 110 °C (Atom x7-E3950)
Maximum case temperature (TCase)	72 °C	of 105 °C (Core i7-5950HQ)
64 bit support	+
Windows 11 compatibility	+

Compatibility

Information on Core i5-8400H compatibility with other computer components and devices: 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 configuration	1 (Uniprocessor)	of 8 (Opteron 842)
Socket	FCBGA1440
Power consumption (TDP)	45 Watt	of 500 Watt (Xeon 6960P)

Technologies and extensions

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

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+
AVX	+
vPro	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
My WiFi	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
TSX	+
Idle States	+
Thermal Monitoring	+
Flex Memory Access	+
SIPP	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+
MPX	+
Identity Protection	+
SGX	Yes with Intel® ME
OS Guard	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

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

Memory specs

Types, maximum amount and channel number of RAM supported by Core i5-8400H's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4
Maximum memory size	64 GB	of 6 TiB (EPYC 9124)
Max memory channels	2	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	42.671 GB/s	of 460.8 GB/s (EPYC 9124)

Graphics specifications

General parameters of a GPU integrated into Core i5-8400H.

Integrated graphics card	Intel UHD Graphics 630
Max video memory	64 GB
Quick Sync Video	+
Clear Video	+
Clear Video HD	+
Graphics max frequency	1.1 GHz
InTru 3D	+

Graphics interfaces

Available interfaces and connections of Core i5-8400H's integrated GPU.

Number of displays supported	3
eDP	+
DisplayPort	+
HDMI	+
DVI	+

Graphics image quality

Maximum display resolutions supported by Core i5-8400H's integrated GPU, including resolutions over different interfaces.

4K resolution support	+
Max resolution over HDMI 1.4	4096x2304@30Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over VGA	N/A

Graphics API support

APIs supported by Core i5-8400H's integrated GPU, sometimes API versions are included.

DirectX	12
OpenGL	4.5

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (Core i9-12900K)
PCI Express lanes	16	of 144 (Threadripper PRO 7955WX)