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AMD · sTR5 · Shimada Peak

AMD Ryzen Threadripper PRO 9955WX

16 cores / 32 threads · 4.50–5.40 GHz · 350 W · max 350 W

App
106%
Game
78%
Balanced
92%
Amazon
$1549
$1549
Available Updated 3 days, 14 hours ago Prime FBA
Applications106.4%
Gaming 1080p78.3%
Balanced92.3%
Value14.9

Written analysis

AMD Ryzen Threadripper PRO 9955WX at a glance

The AMD Ryzen Threadripper PRO 9955WX is based on the Shimada Peak architecture and is manufactured using the 4 nm process at TSMC. It uses the sTR5 socket with WRX90, TRX50, Pro 695 chipsets, PCIe Gen 5, 128 Lanes (CPU only), and DDR5 ECC Reg memory up to 6400 MT/s across Eight-channel memory. It has 16 cores at 4.50–5.40 GHz and 32 threads. Cache is 1024 kB L2 and 64 MB L3.

This CPU belongs to the high-end workstation class and supports DDR5 registered ECC (RDIMM) memory across eight memory channels, with about 409.6 GB/s of bandwidth. It is built for sustained all-core work such as rendering, simulation, virtualization, and AI, with a TDP of 350 W. Gaming remains GPU-bound on this platform.

This CPU has no integrated graphics. A discrete graphics card is required for display output.

Best fit: Workstations that can use its memory bandwidth, core count, and sustained compute throughput.

Application performance

AMD Ryzen Threadripper PRO 9955WX is a high-end CPU, at 106.43% of the dataset’s best application performance. It is built for demanding creation and compute work.

Application value is 20.6 performance per dollar. You are paying for peak performance, not efficiency.

Gaming performance

AMD Ryzen Threadripper PRO 9955WX is a mid-range gaming CPU, at 78.26% of the dataset’s best 1080p CPU-limited gaming. Match it with a mid-range GPU.

Gaming value is 10.0 performance per dollar. Nearby CPUs in the table are often better buys for gaming.

Measured

Workloads

Cinebench R24 multi
2350
Cinebench R24 single
128
Cinebench R24 multi93.0%
Blender101.8%
AV1 encode114.1%
H.265 encode103.9%
7-Zip compress106.8%
7-Zip decompress119.1%
Gaming 1080p78.3%
Application value20.6
Gaming value10.0
Balanced value14.9

Processor data

Full specifications

Architecture, core layout, memory support, cache, power limits, and integrated graphics in one technical sheet.

General

Brand
AMD
CPU
AMD Ryzen Threadripper PRO 9955WX
Launch price
$1649
Amazon price
$1549
Availability
In stock
Price updated
3 days, 14 hours ago
Launch
1 year, 1 month ago

Architecture

Architecture
Shimada Peak
Foundry
TSMC
Process
4 nm
Socket
sTR5
Chipsets
WRX90, TRX50, Pro 695
Transistors
16630 million
Die size
2x 70.6 mm²
PCIe
Gen 5, 128 Lanes (CPU only)
Secondary PCIe
Gen 3, 8 Lanes

Graphics

Integrated GPU
No

Cores

Cores / threads
16 / 32
Base / boost
4.50 / 5.40 GHz

Memory

Support / max speed
DDR5 ECC Reg / 6400 MT/s
Bandwidth
409.6 GB/s
Channels
Eight-channel
Maximum memory
2 TB (ECC RDIMM only)
ECC
Yes

Cache

L1 (per core)
64 kB
L2 (per core)
1024 kB
L3 (shared)
64 MB

Power

Base TDP
350 W
Max turbo power
350 W

Amazon

Price history

Nearby performance

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