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Core i5-8400H
Coffee Lake H, Front
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i5-8400H
Part Number	CL8068403373614
S-Spec	SR3Z1
Market	Mobile
Introduction	April 2, 2018 (announced) April 2, 2018 (launched)
Release Price	$250
Shop	Amazon
General Specs
Family	Core i5
Series	i5-8000
Locked	Yes
Frequency	2,500 MHz
Turbo Frequency	4,200 MHz (1 core), 4,200 MHz (2 cores), 4,100 MHz (3 cores), 4,100 MHz (4 cores)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Clock multiplier	25
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Coffee Lake
Platform	Coffee Lake
Chipset	300 series
Core Name	Coffee Lake H
Core Family	6
Core Model	158
Core Stepping	U0
Process	14 nm
Technology	CMOS
Die	126 mm²
Word Size	64 bit
Cores	4
Threads	8
Max Memory	64 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	45 W
cTDP down	35 W
Tjunction	0 °C – 100 °C
Packaging
Package FCBGA-1440 (BGA) Dimension 42 mm x 28 mm x 1.49 mm Pitch 0.65 mm Ball Count 1440 Ball Comp SAC405 Interconnect BGA-1440

Core i5-8400H is a 64-bit quad-core mid-range performance x86 mobile microprocessor introduced by Intel in 2018. This processor, which is based on the Coffee Lake microarchitecture, is manufactured on Intel's 3rd generation enhanced 14nm++ process. The i5-8400H operates at 2.5 GHz with a TDP of 45 W and a turbo boost of up to 4.2 GHz. This chip integrates Intel's UHD Graphics 630 GPU operating at 350 MHz with a burst frequency of up to 1.1 GHz and supports up to 64 GiB of dual-channel DDR4-2666 memory.

This model has a configurable TDP-down of 35 W.

Cache

Main article: Coffee Lake § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 256 KiB 262,144 B 0.25 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative   L1D$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     4x256 KiB 4-way set associative write-back L3$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     4x2 MiB 16-way set associative write-back

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2666, LPDDR3-2133 Supports ECC No Max Mem 64 GiB Controllers 1 Channels 2 Width 64 bit Max Bandwidth 39.74 GiB/s 40,693.76 MiB/s 42.671 GB/s 42,670.5 MB/s 0.0388 TiB/s 0.0427 TB/s Bandwidth Single 19.87 GiB/s Double 39.74 GiB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 3.0 Max Lanes: 16 Configuration: 1x16, 2x8, 1x8+2x4

Graphics

[Edit/Modify IGP Info]

Integrated Graphics Information

GPU UHD Graphics 630 Designer Intel Device ID 0x3E9B Execution Units 24 Max Displays 3 Max Memory 64 GiB 65,536 MiB 67,108,864 KiB 68,719,476,736 B Frequency 350 MHz 0.35 GHz 350,000 KHz Burst Frequency 1,100 MHz 1.1 GHz 1,100,000 KHz Output DP, eDP, HDMI, DVI Max Resolution HDMI 4096x2304 @24 Hz DP 4096x2304 @60 Hz eDP 4096x2304 @60 Hz Standards DirectX 12 OpenGL 4.5 OpenCL 2.0 DP 1.2 eDP 1.4 HDMI 1.4a Additional Features Intel Quick Sync Video Intel InTru 3D Intel Clear Video Intel Clear Video HD

[Edit] Coffee Lake (Gen9.5) Hardware Accelerated Video Capabilities
Codec	Encode			Decode
	Profiles	Levels	Max Resolution	Profiles	Levels	Max Resolution
MPEG-2 (H.262)	Main	High	1080p (FHD)	Main	Main, High	1080p (FHD)
MPEG-4 AVC (H.264)	High, Main	5.1	2160p (4K)	Main, High, MVC, Stereo	5.1	2160p (4K)
JPEG/MJPEG	Baseline	-	16k x 16k	Baseline	Unified	16k x 16k
HEVC (H.265)	Main	5.1	2160p (4K)	Main, Main 10	5.1	2160p (4K)
VC-1	✘			Advanced, Main, Simple	3, High, Simple	3840x3840
VP8	Unified	Unified	N/A	0	Unified	1080p
VP9	0		2160p (4K)	0, 2	Unified	2160p (4K)

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 2.0 Turbo Boost Technology 2.0 EIST Enhanced SpeedStep Technology SST Speed Shift Technology TXT Trusted Execution Technology (SMX) vPro Intel vPro VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) TSX Transactional Synchronization Extensions MPX Memory Protection Extensions SGX Software Guard Extensions Secure Key Secure Key Technology SMEP OS Guard Technology Flex Memory Flex Memory Access SIPP Stable Image Platform Program IPT Identity Protection Technology