i5-8400 vs Ryzen 7 1800X

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Aggregate performance score

Ryzen 7 1800X
2017
8 cores / 16 threads, 95 Watt
10.29
+77.1%
Core i5-8400
2017
6 cores / 6 threads, 65 Watt
5.81

Ryzen 7 1800X outperforms Core i5-8400 by an impressive 77% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 1800X and Core i5-8400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking7601128
Place by popularitynot in top-10063
Cost-effectiveness evaluation3.144.96
Market segmentDesktop processorDesktop processor
SeriesAMD Ryzen 7Intel Core i5
Power efficiency10.268.46
Architecture codenameZen (2017−2020)Coffee Lake-S (2017−2018)
Release date2 March 2017 (7 years ago)5 October 2017 (7 years ago)
Launch price (MSRP)$499$182

Cost-effectiveness evaluation

Performance per price, higher is better.

i5-8400 has 58% better value for money than Ryzen 7 1800X.

Detailed specifications

Ryzen 7 1800X and Core i5-8400 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 cores8 (Octa-Core)6 (Hexa-Core)
Threads166
Base clock speed3.6 GHz2.8 GHz
Boost clock speed4 GHz4 GHz
Bus typeno dataDMI 3.0
Bus rate4 × 8 GT/s4 × 8 GT/s
Multiplier3628
L1 cache768 KB64K (per core)
L2 cache4096 KB256K (per core)
L3 cache16384 KB9 MB (shared)
Chip lithography14 nm14 nm
Die size192 mm2149 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)no data72 °C
Number of transistors4,800 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on Ryzen 7 1800X and Core i5-8400 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 (Uniprocessor)
SocketAM4FCLGA1151
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 1800X and Core i5-8400. You'll probably need this information if you require some particular technology.

Instruction set extensionsXFR, FMA3, SSE 4.2, AVX2, SMTIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMAFMA3-
AVX++
vProno data+
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+
XFR+-
SenseMI+-

Security technologies

Ryzen 7 1800X and Core i5-8400 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 1800X and Core i5-8400 are enumerated here.

AMD-V++
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 1800X and Core i5-8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR3, DDR4
Maximum memory size64 GB128 GB
Max memory channels22
Maximum memory bandwidth42.671 GB/s42.671 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-Intel UHD Graphics 630
Max video memory-64 GB
Quick Sync Video-+
Clear Video-+
Clear Video HD-+
Graphics max frequency-1.05 GHz
InTru 3D-+

Graphics interfaces

Available interfaces and connections of Ryzen 7 1800X and Core i5-8400 integrated GPUs.

Number of displays supported-3

Graphics image quality

Maximum display resolutions supported by Ryzen 7 1800X and Core i5-8400 integrated GPUs, including resolutions over different interfaces.

4K resolution support-+
Max resolution over HDMI 1.4-4096x2304@24Hz
Max resolution over eDP-4096x2304@60Hz
Max resolution over DisplayPort-4096x2304@60Hz

Graphics API support

APIs supported by Ryzen 7 1800X and Core i5-8400 integrated GPUs, sometimes API versions are included.

DirectX-12
OpenGL-4.5

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 1800X and Core i5-8400.

PCIe versionn/a3.0
PCI Express lanes2016

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.

Ryzen 7 1800X 10.29
+77.1%
i5-8400 5.81

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.

Ryzen 7 1800X 16351
+77.1%
i5-8400 9234

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.

Ryzen 7 1800X 1140
i5-8400 1373
+20.4%

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.

Ryzen 7 1800X 5673
+17.9%
i5-8400 4811

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.

Ryzen 7 1800X 5062
i5-8400 6364
+25.7%

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.

Ryzen 7 1800X 32833
+6.6%
i5-8400 30790

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.

Ryzen 7 1800X 9585
+1.2%
i5-8400 9474

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.

Ryzen 7 1800X 4.6
+34.8%
i5-8400 6.2

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.

Ryzen 7 1800X 18
+63.8%
i5-8400 11

Cinebench 15 64-bit multi-core

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

Ryzen 7 1800X 1618
+71.9%
i5-8400 941

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.

Ryzen 7 1800X 161
i5-8400 170
+5.4%

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.

Ryzen 7 1800X 1.79
i5-8400 1.9
+6.1%

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.

Ryzen 7 1800X 9.7
+94%
i5-8400 5

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.

Ryzen 7 1800X 3967
i5-8400 5173
+30.4%

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.  

Ryzen 7 1800X 84
+36.8%
i5-8400 61

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.  

Ryzen 7 1800X 179
i5-8400 224
+25%

Geekbench 4.0 64-bit multi-core

Ryzen 7 1800X 21595
+10.7%
i5-8400 19500

Geekbench 4.0 64-bit single-core

Ryzen 7 1800X 4490
i5-8400 4996
+11.3%

Gaming performance

Pros & cons summary


Performance score 10.29 5.81
Recency 2 March 2017 5 October 2017
Physical cores 8 6
Threads 16 6
Power consumption (TDP) 95 Watt 65 Watt

Ryzen 7 1800X has a 77.1% higher aggregate performance score, and 33.3% more physical cores and 166.7% more threads.

i5-8400, on the other hand, has an age advantage of 7 months, and 46.2% lower power consumption.

The Ryzen 7 1800X is our recommended choice as it beats the Core i5-8400 in performance tests.


Should you still have questions on choice between Ryzen 7 1800X and Core i5-8400, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 1800X
Ryzen 7 1800X
Intel Core i5-8400
Core i5-8400

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Community ratings

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