AMD Ryzen 5 PRO 9645 Processor (MPK) – Overview
Cores / threads
6 cores, 12 threads
Zen 5 architecture with simultaneous multithreading
6 cores, 12 threads
Zen 5 architecture with simultaneous multithreading
Clock speed
Up to 5.4GHz boost
3.9GHz base clock, locked multiplier
Up to 5.4GHz boost
3.9GHz base clock, locked multiplier
Cache
38MB L2 + L3
6MB L2 and 32MB L3 cache
38MB L2 + L3
6MB L2 and 32MB L3 cache
TDP
65W
Default TDP; maximum operating temperature 95 °C
65W
Default TDP; maximum operating temperature 95 °C
Socket
AM5
For A620, B650, X670, B840, B850 and X870 series boards
AM5
For A620, B650, X670, B840, B850 and X870 series boards
Memory
DDR5, dual channel
DDR5-5600 with two DIMMs, up to 192GB, ECC capable
DDR5, dual channel
DDR5-5600 with two DIMMs, up to 192GB, ECC capable
Graphics
AMD Radeon Graphics
2-core integrated GPU at 2200 MHz
AMD Radeon Graphics
2-core integrated GPU at 2200 MHz
Business features
AMD PRO technologies
DASH manageability, Memory Guard and Secure Processor
AMD PRO technologies
DASH manageability, Memory Guard and Secure Processor
Warranty
3 Year Carry-In
AMD processor warranty, supplied as MPK
3 Year Carry-In
AMD processor warranty, supplied as MPK
AMD Ryzen 5 PRO 9645 Processor (MPK) Specifications
| General | |
|---|---|
| Brand | AMD |
| Model | Ryzen 5 PRO 9645 |
| Part number (MPK) | 100-100001409MPK |
| Tray part number | 100-000001409 |
| Former codename | Granite Ridge |
| Launch date | 16/09/2025 |
| Processor | |
| Architecture | Zen 5 |
| Cores | 6 |
| Threads | 12 |
| Base clock | 3.9GHz |
| Max boost clock | Up to 5.4GHz |
| L1 cache | 480KB |
| L2 cache | 6MB |
| L3 cache | 32MB |
| Process | TSMC 4nm FinFET (CPU cores), TSMC 6nm FinFET (I/O die) |
| Unlocked for overclocking | No |
| Default TDP | 65W |
| Max operating temperature | 95 °C |
| Platform | |
| Socket | AM5 |
| Supported chipsets | A620, B650, B650E, X670, X670E, B840, B850, X870, X870E |
| PCI Express | PCIe 5.0, 28 native lanes (24 usable) |
| Native USB | 4 x USB 3.2 Gen 2 (10Gbps), 1 x USB 2.0 |
| Memory | |
| Memory type | DDR5 UDIMM (ECC with a supporting motherboard) |
| Memory channels | 2 |
| Max memory | 192GB |
| Memory speed | DDR5-5600 (2 DIMMs), DDR5-3600 (4 DIMMs) |
| Graphics and Business Features | |
| Integrated graphics | AMD Radeon Graphics, 2 cores, 2200 MHz |
| AMD PRO technologies | Yes, with DASH manageability |
| Security | AMD Memory Guard, AMD Secure Processor, Platform Secure Boot, firmware TPM |
| In the Box and Warranty | |
| In the box | AMD Ryzen 5 PRO 9645 processor AMD Wraith Stealth CPU cooler |
| Warranty | 3 Year AMD Carry-In |
About the AMD Ryzen 5 PRO 9645 Processor (MPK)
The AMD Ryzen 5 PRO 9645 is a six-core, twelve-thread Zen 5 processor for AM5 business desktops and workstations. It reaches 5.4GHz with 32MB of L3 cache at a 65W TDP, and supports dual-channel DDR5 with ECC on compatible boards. AMD PRO technologies add DASH remote management, Memory Guard encryption and the AMD Secure Processor, which suit managed office fleets. Basic Radeon graphics drive displays without a graphics card. Unlike the consumer Ryzen 5 9600, the multiplier is locked. This is the MPK version.
