i5-8400B vs Ryzen Z2 Go

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Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1032not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Rembrandt (Zen 3+)Intel Core i5
Power efficiency26.17no data
DesignerAMDIntel
Architecture codenameRembrandt R (2025)Coffee Lake (2017−2019)
Release date6 January 2025 (less than a year ago)2 April 2018 (7 years ago)
Launch price (MSRP)no data$182

Detailed specifications

Ryzen Z2 Go and Core i5-8400B 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)6 (Hexa-Core)
Threads86
Base clock speed3 GHz2.8 GHz
Boost clock speed4.3 GHz4 GHz
Bus typeno dataDMI 3.0
Bus rateno data4 × 8 GT/s
Multiplierno data28
L1 cache256 KB384 KB
L2 cache2 MB1.5 MB
L3 cache8 MB9 MB
Chip lithography6 nm14 nm
Die sizeno data126 mm2
Maximum core temperatureno data100 °C
64 bit support++
Windows 11 compatibilityno data+

Compatibility

Information on Ryzen Z2 Go and Core i5-8400B 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 configurationno data1 (Uniprocessor)
Socketno dataFCBGA1440
Power consumption (TDP)28 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Z2 Go and Core i5-8400B. 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-+
AVX-+
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+

Security technologies

Ryzen Z2 Go and Core i5-8400B 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 Z2 Go and Core i5-8400B are enumerated here.

VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Z2 Go and Core i5-8400B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR4-2666
Maximum memory sizeno data64 GB
Max memory channelsno data2
Maximum memory bandwidthno data42.671 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 680MIntel UHD Graphics 630
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.05 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Ryzen Z2 Go and Core i5-8400B integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Ryzen Z2 Go and Core i5-8400B integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@30Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Ryzen Z2 Go and Core i5-8400B integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Ryzen Z2 Go and Core i5-8400B.

PCIe versionno data3.0
PCI Express lanesno data16

Pros & cons summary


Integrated graphics card 7.91 2.83
Recency 6 January 2025 2 April 2018
Physical cores 4 6
Threads 8 6
Chip lithography 6 nm 14 nm
Power consumption (TDP) 28 Watt 65 Watt

Ryzen Z2 Go has 179.5% faster integrated GPU, an age advantage of 6 years, 33.3% more threads, a 133.3% more advanced lithography process, and 132.1% lower power consumption.

i5-8400B, on the other hand, has 50% more physical cores.

We couldn't decide between AMD Ryzen Z2 Go and Intel Core i5-8400B. We've got no test results to judge.

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AMD Ryzen Z2 Go
Ryzen Z2 Go
Intel Core i5-8400B
Core i5-8400B

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