C
AMD Ryzen 9 PRO 9955
CPU
AMD
Jun 2026 Released
The AMD Ryzen 9 PRO 9955 is a server-class CPU manufactured by AMD, built on AMD's officially announced 6 nm process technology, released in June 2026. This processor features a 12-core 24-thread architecture design, with a base clock of 3.4 GHz and a maximum boost clock reaching up to 5.4 GHz, equipped with 64 MB of L3 cache, utilizing the AMD Socket AM5 socket. Overall specifications are targeted at server application scenarios.
General Parameters
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Release Date
Jun 2026
Manufacturer
AMD
Type
Server
Core Architecture
Granite Ridge
Integrated Graphics
Radeon Graphics
Generation
Ryzen 9 (Zen 5 (Granite Ridge))
Package
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Transistor Count
16.63 billions
Manufacturing Process
4 nm
Socket
AMD Socket AM5
Power Consumption
120 W
Peak Operating Temperature
95°C
Foundry
TSMC
Die Size
2x70.6 mm²
I/O Process Size
6 nm
I/O Die Size
122 mm²
Package
FC-LGA1718
CPU Performance
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Performance Core Base Frequency
3.4 GHz
Performance Core Turbo Frequency
5.4 GHz
Total Core Count
12
Total Thread Count
24
Bus Frequency
100 MHz
Multiplier
34.0
L1 Cache
80 KB per core
L2 Cache
1 MB per core
L3 Cache
64 MB
Unlocked Multiplier
No
SMP
1
Memory Parameters
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Memory Types
DDR5-5600
Max Memory Channels
2
Max Memory Bandwidth
89.6 GB/s
ECC Memory Support
Yes
Miscellaneous
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PCIe Version
5
PCIe Lanes
24