Intel Core i5-8400H vs Intel Core i7-8705G

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i5-8400H or Intel Core i5-8400H – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i5-8400H features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2018 and belongs to the 8 generation of the Intel Core i5 series.
To use the Intel Core i5-8400H, you'll need a motherboard with a BGA 1440 socket.
The Intel Core i7-8705G features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q1/2018 and belongs to the 8 generation of the Intel Core i7 series.
To use the Intel Core i7-8705G, you'll need a motherboard with a BGA 2270 socket.
Mobile Segment Mobile
Intel Core i5-8400H Name Intel Core i7-8705G
Intel Core i5 Family Intel Core i7
8 Generation 8
Intel Core i 8000H Group Intel Core i 8000G
 
 

CPU Cores and Base Frequency

The Intel Core i5-8400H has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i5-8400H is 2.5 GHz
and turbo frequency for one core is 4.2 GHz.
The Intel Core i7-8705G has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-8705G is 3.1 GHz
and turbo frequency for one core is 4.1 GHz.
4.2 GHz Turbo Frequency (1 core) 4.1 GHz
No Overclocking No
normal Core architecture normal
2.5 GHz Frequency 3.1 GHz
8 Threads 8
3.7 GHz Turbo Frequency (all cores) 3.6 GHz
Yes Hyperthreading Yes
4 CPU Cores 4
4x Cores 4x
 
 

Internal Graphics

The Intel Core i5-8400H has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-8400H uses the Intel HD Graphics 630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-8705G has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-8705G uses the AMD Radeon RX Vega M GL Graphics, which has 1280 texture shaders
and 20 execution units.
0.3 GHz GPU frequency 0.93 GHz
Q2/2016 Release date Q1/2018
12 Direct X 12.1
Intel HD Graphics 630 GPU name AMD Radeon RX Vega M GL Graphics
14 nm Technology 14 nm
-- Max. displays --
192 Shaders 1280
64.0 GB Max. GPU Memory 4.0 GB
24 Execution units 20
9.5 Generation 8
1.1 GHz GPU (Turbo) 1.01 GHz
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode AVC Decode / Encode
Decode VC-1 Decode
Decode / Encode VP9 Decode / Encode
Decode / Encode h265 / HEVC (10 bit) Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP8 Decode / Encode
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode JPEG Decode / Encode
No AV1 No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 38.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
2 Memory channels 2
64.0 GB Max. Memory 64.0 GB
pci PCIe pci
Yes AES-NI Yes
No ECC No
42.7 GB/s Bandwidth 38.4 GB/s
DDR4-2666 Memory type DDR4-2400
 
 

Thermal Management

The processor has a thermal design power (TDP) of 45 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 65 W watts.
-- Tjunction max --
45 W TDP (PL1 / PBP) 65 W
 
 

Technical details

The Intel Core i5-8400H is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-8705G is manufactured using a 14 nm process.
Q2/2018 Release date Q1/2018
-- Part Number --
0 bytes L2-Cache 0 bytes
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
Monolithic Chip design Monolithic
Coffee Lake H Architecture Kaby Lake G Refresh
14 nm Technology 14 nm
BGA 1440 Socket BGA 2270
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
-- Release price --
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
8.0 MB L3-Cache 8.0 MB
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i5-8400H
4C 8T @ 2.5 GHz
15783
15783
Intel Core i7-8705G
4C 8T @ 3.1 GHz
15575
15575

Geekbench 3, 64bit (Single-Core)

Intel Core i5-8400H
4C 8T @ 2.5 GHz
4449
4449
Intel Core i7-8705G
4C 8T @ 3.1 GHz
4360
4360

Geekbench 6 (Multi-Core)

Intel Core i7-8705G
4C 8T @ 3.1 GHz
4354
4354
Intel Core i5-8400H
4C 8T @ 2.5 GHz
3826
3826

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-8705G
4C 8T @ 3.1 GHz
3862
3862
Intel Core i5-8400H
4C 8T @ 2.5 GHz
3534
3534

Geekbench 6 (Single-Core)

Intel Core i7-8705G
4C 8T @ 3.1 GHz
1360
1360
Intel Core i5-8400H
4C 8T @ 2.5 GHz
1296
1296

Geekbench 5, 64bit (Single-Core)

Intel Core i7-8705G
4C 8T @ 3.1 GHz
1082
1082
Intel Core i5-8400H
4C 8T @ 2.5 GHz
1081
1081

Cinebench R15 (Multi-Core)

Intel Core i5-8400H
4C 8T @ 2.5 GHz
819
819
Intel Core i7-8705G
4C 8T @ 3.1 GHz
809
809

Cinebench R15 (Single-Core)

Intel Core i5-8400H
4C 8T @ 2.5 GHz
178
178
Intel Core i7-8705G
4C 8T @ 3.1 GHz
174
174