i7-14700HX vs i5-8400

Aggregate performance score

Core i5-8400
2017
6 cores / 6 threads, 65 Watt
5.82
Core i7-14700HX
2024
20 cores / 28 threads, 55 Watt
23.53
+304%

Core i7-14700HX outperforms Core i5-8400 by a whopping 304% based on our aggregate benchmark results.

Primary details

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

Place in the ranking1116217
Place by popularity68not in top-100
Cost-effectiveness evaluation4.94no data
Market segmentDesktop processorLaptop
SeriesIntel Core i5Raptor Lake-HX
Power efficiency8.4740.49
Architecture codenameCoffee Lake-S (2017−2018)Raptor Lake-HX Refresh (2024)
Release date5 October 2017 (7 years ago)8 January 2024 (less than a year ago)
Launch price (MSRP)$182no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i5-8400 and Core i7-14700HX 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 cores6 (Hexa-Core)20 (Icosa-Core)
Threads628
Base clock speed2.8 GHz2.1 GHz
Boost clock speed4 GHz5.4 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s157 MHz
Multiplier28no data
L1 cache64K (per core)80 KB (per core)
L2 cache256K (per core)2 MB (per core)
L3 cache9 MB (shared)33 MB (shared)
Chip lithography14 nmIntel 7 nm
Die size149 mm2257 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier-+

Compatibility

Information on Core i5-8400 and Core i7-14700HX 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
SocketFCLGA1151FCBGA1964
Power consumption (TDP)65 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400 and Core i7-14700HX. 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++
FMA-+
AVX++
vPro++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology2.0no data
Hyper-Threading Technology-+
TSX-+
Idle States+no data
Thermal Monitoring++
Flex Memory Accessno data+
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

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

TXT-+
EDB+no data
Secure Key++
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400 and Core i7-14700HX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8400 and Core i7-14700HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3, DDR4DDR4, DDR5
Maximum memory size128 GB192 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/s89.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 630Intel UHD Graphics for 14th Gen Intel Processors
Max video memory64 GBno data
Quick Sync Video++
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.05 GHz1.6 GHz
Execution Unitsno data32
InTru 3D+no data

Graphics interfaces

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

Number of displays supported34

Graphics image quality

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

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hz4096 x 2160 @ 60Hz
Max resolution over eDP4096x2304@60Hz5120 x 3200 @ 120Hz
Max resolution over DisplayPort4096x2304@60Hz7680 x 4320 @ 60Hz

Graphics API support

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

DirectX1212.1
OpenGL4.54.6

Peripherals

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

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.

i5-8400 5.82
i7-14700HX 23.53
+304%

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.

i5-8400 9238
i7-14700HX 37380
+305%

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.

i5-8400 1373
i7-14700HX 2512
+83%

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.

i5-8400 4799
i7-14700HX 13653
+184%

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.

i5-8400 6364
i7-14700HX 11767
+84.9%

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.

i5-8400 30790
i7-14700HX 68172
+121%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i5-8400 9474
i7-14700HX 18104
+91.1%

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.

i5-8400 6.2
i7-14700HX 2.69
+130%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i5-8400 11
+5.3%
i7-14700HX 10

Cinebench 15 64-bit multi-core

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

i5-8400 941
i7-14700HX 3780
+302%

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.

i5-8400 170
i7-14700HX 296
+74.6%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark 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 loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i5-8400 1.9
i7-14700HX 3.63
+91.1%

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.

i5-8400 5
i7-14700HX 19.3
+286%

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.  

i5-8400 61
i7-14700HX 177
+188%

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.  

i5-8400 224
i7-14700HX 365
+63.2%

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.

i5-8400 5173
i7-14700HX 10202
+97.2%

Gaming performance

Pros & cons summary


Performance score 5.82 23.53
Integrated graphics card 3.09 5.58
Recency 5 October 2017 8 January 2024
Physical cores 6 20
Threads 6 28
Power consumption (TDP) 65 Watt 55 Watt

i7-14700HX has a 304.3% higher aggregate performance score, 80.6% faster integrated GPU, an age advantage of 6 years, 233.3% more physical cores and 366.7% more threads, and 18.2% lower power consumption.

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

Note that Core i5-8400 is a desktop processor while Core i7-14700HX is a notebook one.


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

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Intel Core i5-8400
Core i5-8400
Intel Core i7-14700HX
Core i7-14700HX

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