i7-14700K vs i5-8400H

VS

Aggregate performance score

Core i5-8400H
2018
4 cores / 8 threads, 45 Watt
4.82
Core i7-14700K
2023
20 cores / 28 threads, 125 Watt
33.49
+595%

Core i7-14700K outperforms Core i5-8400H by a whopping 595% based on our aggregate benchmark results.

Primary details

Comparing Core i5-8400H and Core i7-14700K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1255116
Place by popularitynot in top-10088
Cost-effectiveness evaluationno data100.00
Market segmentLaptopDesktop processor
SeriesIntel Core i5no data
Power efficiency10.1325.34
Architecture codenameCoffee Lake-H (2018−2019)Raptor Lake-R (2023−2024)
Release date2 April 2018 (6 years ago)17 October 2023 (1 year ago)
Launch price (MSRP)$250$319

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i5-8400H and Core i7-14700K 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)20 (Icosa-Core)
Threads828
Base clock speed2.5 GHz3.4 GHz
Boost clock speed4.2 GHz5.6 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplier25no data
L1 cache64K (per core)80 KB (per core)
L2 cache256K (per core)2 MB (per core)
L3 cache12 MB (shared)33 MB (shared)
Chip lithography14 nmIntel 7 nm
Die size126 mm2257 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Core i5-8400H and Core i7-14700K 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
SocketFCBGA1440FCLGA1700
Power consumption (TDP)45 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400H and Core i7-14700K. 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++
My WiFi+no data
Turbo Boost Technology2.02.0
Hyper-Threading Technology++
TSX++
Idle States++
Thermal Monitoring++
Flex Memory Access+no data
SIPP++
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

Core i5-8400H and Core i7-14700K technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Key++
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400H and Core i7-14700K 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 i7-14700K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4, DDR5
Maximum memory size64 GB192 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/s89.6 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 630Intel UHD Graphics 770
Max video memory64 GBno data
Quick Sync Video++
Clear Video+no data
Clear Video HD++
Graphics max frequency1.1 GHz1.6 GHz
Execution Unitsno data32
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i5-8400H and Core i7-14700K integrated GPUs.

Number of displays supported34
eDP+no data
DisplayPort+-
HDMI+-
DVI+no data

Graphics image quality

Maximum display resolutions supported by Core i5-8400H and Core i7-14700K integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@30Hz4096 x 2160 @ 60Hz
Max resolution over eDP4096x2304@60Hz5120 x 3200 @ 120Hz
Max resolution over DisplayPort4096x2304@60Hz7680 x 4320 @ 60Hz
Max resolution over VGAN/Ano data

Graphics API support

APIs supported by Core i5-8400H and Core i7-14700K integrated GPUs, sometimes API versions are included.

DirectX1212
OpenGL4.54.5

Peripherals

Specifications and connection of peripherals supported by Core i5-8400H and Core i7-14700K.

PCIe version3.05.0 and 4.0
PCI Express lanes1616

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i5-8400H 4.82
i7-14700K 33.49
+595%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i5-8400H 7650
i7-14700K 53194
+595%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-8400H 1308
i7-14700K 2940
+125%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-8400H 3734
i7-14700K 19074
+411%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i5-8400H 6659
i7-14700K 11886
+78.5%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i5-8400H 21711
i7-14700K 91124
+320%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i5-8400H 7.2
i7-14700K 2.2
+227%

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i5-8400H 762
i7-14700K 5035
+561%

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i5-8400H 170
i7-14700K 314
+84%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i5-8400H 4.6
i7-14700K 21.8
+374%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i5-8400H 5391
i7-14700K 12813
+138%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i5-8400H 45
i7-14700K 243
+438%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i5-8400H 185
i7-14700K 406
+119%

Geekbench 5.5 Multi-Core

i5-8400H 4352
i7-14700K 21565
+396%

Blender(-)

i5-8400H 596
+496%
i7-14700K 100

Geekbench 5.5 Single-Core

i5-8400H 1127
i7-14700K 2107
+86.9%

7-Zip Single

i5-8400H 4553
i7-14700K 7196
+58%

7-Zip

i5-8400H 22023
i7-14700K 126436
+474%

WebXPRT 3

i5-8400H 209
i7-14700K 325
+55.5%

CrossMark Overall

i5-8400H 1127
i7-14700K 2241
+98.8%

WebXPRT 4 Overall

i5-8400H 155
i7-14700K 309
+98.6%

Blender v3.3 Classroom CPU(-)

i5-8400H 1151
+534%
i7-14700K 182

Geekbench 6.3 Multi-Core

i5-8400H 4963
i7-14700K 19147
+286%

Geekbench 6.3 Single-Core

i5-8400H 1493
i7-14700K 2922
+95.7%

Gaming performance

Pros & cons summary


Performance score 4.82 33.49
Integrated graphics card 3.09 6.16
Recency 2 April 2018 17 October 2023
Physical cores 4 20
Threads 8 28
Power consumption (TDP) 45 Watt 125 Watt

i5-8400H has 177.8% lower power consumption.

i7-14700K, on the other hand, has a 594.8% higher aggregate performance score, 99.4% faster integrated GPU, an age advantage of 5 years, and 400% more physical cores and 250% more threads.

The Core i7-14700K is our recommended choice as it beats the Core i5-8400H in performance tests.

Be aware that Core i5-8400H is a notebook processor while Core i7-14700K is a desktop one.


Should you still have questions on choice between Core i5-8400H and Core i7-14700K, ask them in Comments section, and we shall answer.

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Intel Core i5-8400H
Core i5-8400H
Intel Core i7-14700K
Core i7-14700K

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Community ratings

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Questions & comments

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