Latest revision as of 13:53, 26 March 2025

Ryzen Threadripper PRO 5955WX is a 64-bit 16-core high performance x86 workstation microprocessor introduced by AMD in March 2022.

This multi-chip processor, which is based on the Zen 3 microarchitecture, incorporates two Core Complex Dies (CCD) fabricated on a TSMC 7 nm process and an I/O die manufactured by GlobalFoundries. The PRO 5955WX has a TDP of 280 W with a base frequency of 4.0 GHz and a boost frequency of up to 4.5 GHz. This processor supports up to 2 TiB of octa-channel DDR4-3200 memory.

Expansions[edit]

Main article: Chagall § I/O Interfaces

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 4.0 Max Lanes: 128 Configuration: x16, x8, x4, x2, x1 SATA Revision: 3.2 Max Ports: 32 USB Revision: 3.2 Gen 2×1 Max Ports: 4 Rate: 10 Gbit/s

Graphics[edit]

This processor has no integrated graphics.

Features[edit]

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 SSE4a Streaming SIMD Extensions 4a AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG SHA SHA Extensions ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute SMT Simultaneous Multithreading AMD-Vi AMD-Vi (I/O MMU virtualization) AMD-V AMD Virtualization TSME Transparent SME SenseMI SenseMI Technology

Cache[edit]

Main article: Zen 3 § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 1 MiB 1,024 KiB 1,048,576 B L1I$ 512 KiB 524,288 B 0.5 MiB 16 × 32 KiB 8-way set associative   L1D$ 512 KiB 524,288 B 0.5 MiB 16 × 32 KiB 8-way set associative write-back L2$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     16 × 512 KiB 8-way set associative write-back L3$ 64 MiB 65,536 KiB 67,108,864 B 0.0625 GiB     2 × 32 MiB 16-way set associative write-back

Memory controller[edit]

This processor supports UDIMM, RDIMM, LRDIMM, and 3DS RDIMM memory.
The maximum memory capacity is 2 TiB using eight 256 GiB LRDIMMs or 3DS RDIMMs.

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-3200 Supports ECC Yes Max Mem 2 TiB Controllers 8 Channels 8 Max Bandwidth 204.8 GB/s 190.735 GiB/s 195,312.5 MiB/s 204,800 MB/s 0.186 TiB/s 0.205 TB/s Bandwidth Single 25.6 GB/s Double 51.2 GB/s Quad 102.4 GB/s Octa 204.8 GB/s

Bibliography[edit]

• "New AMD Ryzen Threadripper PRO 5000 WX-Series Processors are the Ultimate Workstation Processors for Professionals with Up-to Double the Performance of Competing Solutions" (Press release). AMD.com. March 08, 2022.
• "AMD Ryzen Threadripper PRO 5955WX". AMD.com. Retrieved March 2022.