100-100001409MPK specification sheet

Overview:

AMD Ryzen 5 PRO 9645 Desktop Processor
The AMD Ryzen 5 PRO 9645 is a 6-core desktop processor built on AMD Zen 5 architecture and designed for professional business systems, workstations and productivity-focused PCs. With a base clock of 3.9 GHz and boost speeds of up to 5.4 GHz, it delivers responsive performance for demanding business applications, multitasking and everyday desktop workloads. The processor uses the AM5 socket, supports DDR5 memory, PCIe 5.0 and includes integrated AMD Radeon Graphics, making it suitable for a wide range of professional desktop configurations.

Description:

The AMD Ryzen 5 PRO 9645 combines Zen 5 processing performance with AMD PRO technologies for business environments where security, manageability and long-term platform stability are important. Its 6 cores and 12 threads provide strong multitasking performance, while Precision Boost 2 allows the processor to increase clock speeds when additional processing power is required.

With a 65W default TDP, the Ryzen 5 PRO 9645 offers a practical balance between performance and power efficiency. The included AMD Wraith Stealth cooler provides a convenient thermal solution for compatible desktop builds, while integrated Radeon Graphics can handle basic display output without requiring a separate graphics card.

Features:

AMD Ryzen 5 PRO 9645 Performance
The Ryzen 5 PRO 9645 is based on the Zen 5 processor architecture and is manufactured using TSMC 4nm FinFET technology for the CPU cores. It provides 6 physical CPU cores and 12 threads through simultaneous multithreading, making it well suited to multitasking, office applications, professional software and general desktop workloads.

Key processing details include:

• 6 CPU cores and 12 threads
• Base clock speed of 3.9 GHz
• Maximum boost clock of up to 5.4 GHz
• 32 MB L3 cache
• 6 MB L2 cache
• 480 KB L1 cache
• 65W default TDP
• Precision Boost 2 technology
• Zen 5 processor architecture
• AM5 desktop socket

The processor is not unlocked for overclocking and does not support AMD EXPO memory overclocking, Precision Boost Overdrive or Curve Optimizer voltage offsets. This makes it particularly suited to stable, professionally managed desktop systems rather than enthusiast overclocking builds.

DDR5 Memory and PCIe 5.0 Support
The AMD Ryzen 5 PRO 9645 supports DDR5 UDIMM memory through two memory channels, with support for up to 192 GB depending on the motherboard configuration. It also provides PCIe 5.0 connectivity, giving compatible systems access to high-bandwidth storage and expansion options.

Memory support includes DDR5-5600 configurations with suitable modules, while ECC memory is supported when the motherboard also provides ECC support.

The processor provides:

• DDR5 dual-channel memory support
• Up to 192 GB maximum memory
• ECC support with compatible motherboard
• PCIe 5.0 interface
• 28 native PCIe lanes, with 24 usable
• NVMe support including Boot, RAID 0, RAID 1, RAID 5 and RAID 10

Integrated AMD Radeon Graphics
The Ryzen 5 PRO 9645 includes integrated AMD Radeon Graphics with 2 graphics cores operating at up to 2200 MHz. This allows compatible desktop systems to provide display output without the need for a dedicated graphics card, depending on the motherboard's display connectivity.

USB Type-C DisplayPort Alternate Mode is also supported, providing additional display flexibility on compatible systems.

AMD PRO Security and Manageability
For business desktops, the Ryzen 5 PRO 9645 provides a broad selection of security and manageability technologies. AMD PRO technologies are included to support professional IT environments, while DASH support allows compatible systems to benefit from remote management capabilities.

Security technologies include AMD Memory Guard, AMD Secure Processor, AMD Platform Secure Boot and firmware TPM. The processor also supports Windows Device Guard, Virtualization-Based Security, AMD-V, AMD-Vi and other hardware-level security functions.

Compatible AM5 Platforms
The AMD Ryzen 5 PRO 9645 uses the AM5 socket and is compatible with a range of AMD chipsets, allowing system builders to select a motherboard according to their connectivity, expansion and business requirements.

Supported chipsets include:

• AMD A620
• AMD B650 and B650E
• AMD B840 and B850
• AMD X670 and X670E
• AMD X870 and X870E

Always check the motherboard manufacturer's CPU support list and BIOS requirements before installation.

Connectivity and Storage
PCIe 5.0 support provides the bandwidth required by modern high-speed components, including compatible NVMe storage and expansion cards. Native connectivity includes four USB 3.2 Gen 2 ports supporting up to 10Gbps and one USB 2.0 connection at up to 480Mbps, subject to motherboard implementation.

The processor also supports NVMe boot configurations and RAID 0, RAID 1, RAID 5 and RAID 10 when supported by the platform.

Professional Desktop Reliability
AMD positions the Ryzen PRO 9000 Series for business environments where consistent hardware and software support is important. The Ryzen 5 PRO 9645 provides a minimum hardware and software feature stability period of 18 months, along with a minimum software and security support period of 36 months.

This makes the processor a suitable choice for business desktops, professional workstations and managed IT deployments where platform consistency and security are key considerations.

Processor Specifications

• Product: AMD Ryzen 5 PRO 9645
• Family: AMD Ryzen PRO
• Series: Ryzen PRO 9000 Series
• Codename: Granite Ridge AM5
• Architecture: Zen 5
• Socket: AM5
• Cores: 6
• Threads: 12
• Base Clock: 3.9 GHz
• Max Boost Clock: Up to 5.4 GHz
• L1 Cache: 480 KB
• L2 Cache: 6 MB
• L3 Cache: 32 MB
• Default TDP: 65W
• Integrated Graphics: AMD Radeon Graphics
• Graphics Frequency: 2200 MHz
• Memory Type: DDR5 UDIMM
• Maximum Memory: Up to 192 GB
• PCI Express: PCIe 5.0
• Thermal Solution: AMD Wraith Stealth
• Maximum Operating Temperature: 95 C
• Overclocking: Not supported
• AMD PRO Technologies: Yes
• DASH Management: Yes

Part Number and SKU
The part number / SKU for this processor is 100-100001409MPK. The tray product ID is 100-000001409. These identifiers can be used when checking compatibility, ordering the processor or matching it to a specific system configuration.

Operating System Support
The AMD Ryzen 5 PRO 9645 supports modern 64-bit operating systems, including Windows 11, Windows 10, Red Hat Enterprise Linux and Ubuntu. Operating system compatibility can vary depending on the motherboard, drivers and complete system configuration.

AMD Ryzen 5 PRO 9645 for Business PCs
With 6 cores, 12 threads, boost speeds of up to 5.4 GHz, DDR5 memory support, PCIe 5.0 and integrated Radeon Graphics, the AMD Ryzen 5 PRO 9645 is designed for capable professional desktop systems. Its combination of Zen 5 performance, AMD PRO security and manageability technologies, and a 65W power profile makes it a practical option for business desktops and productivity-focused workstations.

Specifications:

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Specifications
Product Code	100-100001409MPK
General Specifications
Name	AMD Ryzen 5 PRO 9645
Family	Ryzen PRO
Series	Ryzen PRO 9000 Series
Form Factor	Desktops , Boxed Processor
AMD PRO Technologies	Yes
Regional Availability	Global
Former Codename	Granite Ridge AM5
Processor Architecture	Zen 5
# of CPU Cores	6
Multithreading (SMT)	Yes
# of Threads	12
Max. Boost Clock	Up to 5.4 GHz
Base Clock	3.9 GHz
L1 Cache	480 KB
L2 Cache	6 MB
L3 Cache	32 MB
Default TDP	65W
Processor Technology for CPU Cores	TSMC 4nm FinFET
Processor Technology for I/O Die	TSMC 6nm FinFET
Package Die Count	2
Unlocked for Overclocking	No
AMD EXPO Memory Overclocking Technology	No
Precision Boost Overdrive	No
Curve Optimizer Voltage Offsets	No
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 , SSE4.1 , SSE4.2 , SSE4A , SSSE3 , x86-64
Thermal Solution (PIB)	AMD Wraith Stealth
Max. Operating Temperature (Tjmax)	95degreesC
Launch Date	9/16/2025
*OS Support	Windows 11 - 64-Bit Edition , Windows 10 - 64-Bit Edition , RHEL x86 64-Bit , Ubuntu x86 64-Bit
Connectivity
Native USB 3.2 Gen 2 (10Gbps)	4
Native USB 2.0 (480Mbps)	1
PCI Express Version	PCIe 5.0
Native PCIe Lanes (Total/Usable)	28 , 24
NVMe Support	Boot , RAID0 , RAID1 , RAID5 , RAID10
System Memory Type	DDR5
Memory Channels	2
Max. Memory	192 GB
System Memory Subtype	UDIMM
Max Memory Speed	2x1R
	DDR5-5600
	2x2R
	DDR5-5600
	4x1R
	DDR5-3600
	4x2R
	DDR5-3600
ECC Support	Yes (Requires mobo support)
Graphics Capabilities
Graphics Model	AMD Radeon Graphics
Graphics Core Count	2
Graphics Frequency	2200 MHz
USB Type-C DisplayPort Alternate Mode	Yes
Product IDs
Product ID Tray	100-000001409
Manageability
DASH support	Yes
Security
AMD Memory Guard	Yes
AMD Secure Processor	Yes
AMD Platform Secure Boot	Yes
Windows Secure Boot	Yes
UEFI Secure Boot	Yes
Windows Device Guard	Yes
Supervisor Mode Execution Prevention (SMEP)	Yes
Guest Mode Execution (GMET) Trap	Yes
Virtualization-Based Security (VBS)	Yes
Firmware TPM	Yes
AMD-V (SVM)	Yes
AMD AVIC (Interrupt Virtualization)	Yes
AMD-Vi (I/O MMU Virtualization)	Yes
Second Level Address Translation (SLAT)	Yes
Advanced Encryption Standard New Instructions (AES-NI)	Yes
AMD Enhanced Virus Protection (NX bit)	Yes
FIPS Certification	Yes
AMD Shadow Stack	Yes
Business Ready
Hardware and Software Feature Stability	Minimum 18 months
Software and Security Support	Minimum 36 months