AMD Ryzen 3 3300X vs Intel Core i5-8400B

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD Ryzen 3 3300X or AMD Ryzen 3 3300X – 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 AMD Ryzen 3 3300X features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2020 and belongs to the 3 generation of the AMD Ryzen 3 series.
To use the AMD Ryzen 3 3300X, you'll need a motherboard with a AM4 (PGA 1331) socket.
The Intel Core i5-8400B features 6 processor cores and has the capability to manage 6 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 i5-8400B, you'll need a motherboard with a BGA 1440 socket.
Desktop / Server Segment Desktop / Server
AMD Ryzen 3 3300X Name Intel Core i5-8400B
AMD Ryzen 3000 Group Intel Core i 8000
3 Generation 8
AMD Ryzen 3 Family Intel Core i5
 
 

CPU Cores and Base Frequency

The AMD Ryzen 3 3300X has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the AMD Ryzen 3 3300X is 3.8 GHz
and turbo frequency for one core is 4.3 GHz.
The Intel Core i5-8400B has 6 CPU cores and can calculate 6 threads in parallel.
The clock frequency of the Intel Core i5-8400B is 2.8 GHz
and turbo frequency for one core is 3.8 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
4 CPU Cores 6
4.3 GHz Turbo Frequency (1 core) 3.8 GHz
4x Cores 6x
4.3 GHz Turbo Frequency (all cores) 4.0 GHz
8 Threads 6
Yes Hyperthreading No
3.8 GHz Frequency 2.8 GHz
normal Core architecture normal
Yes Overclocking No
 
 

Internal Graphics

The AMD Ryzen 3 3300X does not have integrated graphics.
The Intel Core i5-8400B has integrated graphics, called iGPU for short.
Specifically, the Intel Core i5-8400B uses the Intel UHD 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.
-- Direct X 12
-- Execution units 24
0 bytes Max. GPU Memory 64.0 GB
-- Max. displays --
-- Release date Q4/2017
-- GPU (Turbo) 1.15 GHz
-- Shaders 192
GPU name Intel UHD Graphics 630
-- Generation 9.5
-- GPU frequency 0.35 GHz
-- Technology 14 nm
 
 

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.
-- VP8 Decode / Encode
-- AVC Decode / Encode
-- h265 / HEVC (8 bit) Decode / Encode
-- AV1 No
-- VC-1 Decode
-- h264 Decode / Encode
-- VP9 Decode / Encode
-- h265 / HEVC (10 bit) Decode / Encode
-- JPEG Decode / Encode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 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 42.7 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR4-3200 Memory type DDR4-2666
51.2 GB/s Bandwidth 42.7 GB/s
Yes ECC No
2 Memory channels 2
pci PCIe pci
Yes AES-NI Yes
128.0 GB Max. Memory 64.0 GB
 
 

Thermal Management

The processor has a thermal design power (TDP) of 65 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.
95 °C Tjunction max 100 °C
65 W TDP (PL1 / PBP) 65 W
 
 

Technical details

The AMD Ryzen 3 3300X is manufactured using a 7 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i5-8400B is manufactured using a 14 nm process.
In total, this processor boasts a generous 9.0 MB cache.
Chiplet Chip design Monolithic
16.0 MB L3-Cache 9.0 MB
AM4 (PGA 1331) Socket BGA 1440
Technical data sheet Documents Technical data sheet
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux, Windows 11
2.0 MB L2-Cache 0 bytes
Q2/2020 Release date Q2/2018
Matisse (Zen 2) Architecture Coffee Lake S
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Release price 260 $
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
-- Part Number --
7 nm Technology 14 nm