AMD Ryzen Threadripper PRO 9955WX Full Specs

Summary

16 Cores 32 Threads 4.5GHz

TDP 350W

Bandwidth 409.6GB/s DDR5

Socket sTR5

Highlights

Geekbench 6 Single

Geekbench 6 Single Geekbench 6 Multi Max Bandwidth

Ryzen Threadripper PRO 9955WX3,251

x1

Top Score4,349DesktopM5 Max (18C40G)

x1.34

Core Config

16 Cores

32 Threads

Clocks

Base Clock 4.5GHz

Boost Clock 5.4GHz

Overclocking Unlocked

Cache

L1i 32KB

L1d 48KB

L2 1MB

L3 64MB

Memory

Type DDR5

Max Memory 4.1TB

ECC Yes

Channels 8

Bus Width 512-bit

Speed 6400MT/s

Bandwidth 409.6GB/s

Bandwidth Calculator Channels Transfer Rate6400MT/s UC·Spec·OC 409.6GB/s

Power & Thermals

TDP 350W

Max Operating Temp 95°C Max

Included Cooler 0

Chipset Bus

Bus Type PCIe

Bus Config 8 lanes

Bus Speed 32GT/s

Bus Bandwidth 32GB/s

Expansion

PCIe PCIe 5.0 x128 504.1GB/sBandwidth

Chip

Manufacturer AMD

ISA x86-64

Architecture Zen 5

Family Ryzen 9000

Branding

Codename Shimada Peak EldoraDie Shimada Peak 2CCDVariant

Market Segment Workstation

Release Date Jul 23, 2025

Fabrication

Foundry TSMC

Other Foundries TSMCIO

Fabrication Node N4X N6IO

Die Size 141mm² 388mm²IO

Transistor Count 16.6B 11BIO

Transistor Density 118 MTr/mm² 28 MTr/mm²IO

Images