AMD Ryzen 5 8400F Desktop Processor

The AMD Ryzen 5 8400F is a 6-core, 12-thread desktop processor built on the Zen 4 architecture using TSMC 4nm FinFET technology. Designed for the AM5 socket platform, this processor delivers a base clock of 4.2 GHz and boosts up to 4.7 GHz, providing strong performance for gaming, content creation, and multitasking workloads.

Performance and Architecture

With 6 cores and 12 threads enabled through AMD's Simultaneous Multithreading (SMT), the Ryzen 5 8400F handles demanding applications efficiently. The processor includes 6MB of L2 cache and 16MB of L3 cache (22MB total cache), reducing latency and accelerating data access for improved system responsiveness. Operating at a 65W TDP with configurable TDP ranging from 45-65W, it balances performance with power efficiency.

Memory and Connectivity

The 8400F supports DDR5 memory in dual-channel configuration, accommodating up to 256GB with speeds of DDR5-5200 for 2x1R/2x2R configurations or DDR5-3600 for 4x1R/4x2R setups. AMD EXPO memory overclocking technology enables further performance gains. The processor provides 20 native PCIe 4.0 lanes (16 usable), ensuring fast communication with graphics cards and NVMe storage devices. Native connectivity includes 2x USB 4.0 (40Gbps), 2x USB 3.2 Gen 2 (10Gbps), and 1x USB 2.0 port.

Overclocking and Tuning

The Ryzen 5 8400F features an unlocked multiplier for overclocking enthusiasts. AMD Precision Boost 2 technology automatically adjusts clock speeds based on workload demands, while Precision Boost Overdrive, Curve Optimizer voltage offsets, and AMD Ryzen Master software provide granular control over performance tuning.

Platform Compatibility

Compatible with A620, B650, B650E, B840, B850, X670, X670E, X870, and X870E chipsets, the processor supports Windows 11, Windows 10, RHEL, and Ubuntu operating systems. The maximum operating temperature (Tjmax) is 95°C. Note that this processor does not include integrated graphics, requiring a dedicated graphics card for video output.

Key Specifications

Name
AMD Ryzen 5 8400F

Family
Ryzen

Series
Ryzen 8000 Series

Form Factor
Desktops

AMD PRO Technologies
No

Regional Availability
Global

Former Codename
Phoenix

Processor Architecture
Zen 4

Number of CPU Cores
6

Multithreading (SMT)
Yes

Number of Threads
12

Max. Boost Clock
Up to 4.7 GHz

Base Clock
4.2 GHz

L2 Cache
6 MB

L3 Cache
16 MB

Default TDP
65W

AMD Configurable TDP (cTDP)
45-65W

Processor Technology for CPU Cores
TSMC 4nm FinFET

CPU Compute Die (CCD) Size
178mm²

Package Die Count
1

Unlocked for Overclocking
Yes

AMD EXPO Memory Overclocking Technology
Yes

Precision Boost Overdrive
Yes

Curve Optimizer Voltage Offsets
Yes

AMD Ryzen Master Support
Yes

CPU Socket
AM5

Supporting Chipsets
A620 , X670E , X670 , B650E , B650 , X870E , X870 , B840 , B850

CPU Boost Technology
Precision Boost 2

instruction Set
x86-64

Supported Extensions
AES , AMD-V , AVX , AVX2 , AVX512 , FMA3 , MMX-plus , SHA , SSE , SSE2 , SSE3 , SSSE3 , SSE4.1 , SSE4.2 , SSE4A , x86-64

Max. Operating Temperature (Tjmax)
95°C

OS Support
Windows 11 - 64-Bit Edition , Windows 10 - 64-Bit Edition , RHEL x86 64-Bit , Ubuntu x86 64-Bit

Connectivity

Native USB 4 (40Gbps)
2

Native USB 3.2 Gen 2 (10Gbps)
2

Native USB 2.0 (480Mbps)
1

PCI Express Version
PCIe 4.0

Native PCIe Lanes (Total/Usable)
20 , 16

NVMe Support
Boot , RAID0 , RAID1

System Memory Type
DDR5

Memory Channels
2

Max. Memory
256 GB

System Memory Subtype
UDIMM

• Socket: AM4
• On-Chip Graphics: No
• Speed: 4.2GHz
• Core Quantity: 6
• Prefix: Ryzen 5